Opinion Poll by YouGov for The Times, 3–4 March 2019
Voting Intentions | Seats | Coalitions | Technical Information
Voting Intentions

Confidence Intervals
| Party | Last Result | Poll Result | 80% Confidence Interval | 90% Confidence Interval | 95% Confidence Interval | 99% Confidence Interval | 
|---|---|---|---|---|---|---|
| Conservative Party | 42.4% | 40.0% | 38.7–41.4% | 38.3–41.8% | 38.0–42.1% | 37.3–42.8% | 
| Labour Party | 40.0% | 31.0% | 29.7–32.3% | 29.4–32.6% | 29.1–33.0% | 28.5–33.6% | 
| Liberal Democrats | 7.4% | 11.0% | 10.2–11.9% | 10.0–12.2% | 9.8–12.4% | 9.4–12.8% | 
| Scottish National Party | 3.0% | 4.0% | 3.5–4.6% | 3.4–4.8% | 3.2–4.9% | 3.0–5.2% | 
| Green Party | 1.6% | 4.0% | 3.5–4.6% | 3.4–4.8% | 3.2–4.9% | 3.0–5.2% | 
| UK Independence Party | 1.8% | 3.0% | 2.6–3.5% | 2.5–3.7% | 2.3–3.8% | 2.2–4.1% | 
| Brexit Party | 0.0% | 3.0% | 2.6–3.5% | 2.5–3.7% | 2.3–3.8% | 2.2–4.1% | 
| Plaid Cymru | 0.5% | 1.0% | 0.8–1.4% | 0.7–1.4% | 0.7–1.5% | 0.6–1.7% | 
Note: The poll result column reflects the actual value used in the calculations. Published results may vary slightly, and in addition be rounded to fewer digits.
Seats

Confidence Intervals
| Party | Last Result | Median | 80% Confidence Interval | 90% Confidence Interval | 95% Confidence Interval | 99% Confidence Interval | 
|---|---|---|---|---|---|---|
| Conservative Party | 317 | 338 | 320–355 | 317–355 | 317–359 | 310–371 | 
| Labour Party | 262 | 207 | 192–223 | 192–225 | 188–231 | 182–235 | 
| Liberal Democrats | 12 | 29 | 27–31 | 25–31 | 24–31 | 21–34 | 
| Scottish National Party | 35 | 50 | 45–53 | 43–54 | 41–54 | 40–54 | 
| Green Party | 1 | 1 | 1–2 | 1–2 | 1–2 | 1–2 | 
| UK Independence Party | 0 | 0 | 0–1 | 0–1 | 0–1 | 0–1 | 
| Brexit Party | 0 | 0 | 0–1 | 0–1 | 0–1 | 0–1 | 
| Plaid Cymru | 4 | 6 | 5–8 | 4–8 | 4–9 | 3–11 | 
Conservative Party
For a full overview of the results for this party, see the Conservative Party page.

| Number of Seats | Probability | Accumulated | Special Marks | 
|---|---|---|---|
| 301 | 0% | 100% | |
| 302 | 0% | 99.9% | |
| 303 | 0% | 99.9% | |
| 304 | 0% | 99.9% | |
| 305 | 0.1% | 99.9% | |
| 306 | 0% | 99.8% | |
| 307 | 0.1% | 99.8% | |
| 308 | 0% | 99.7% | |
| 309 | 0.1% | 99.6% | |
| 310 | 0.1% | 99.6% | |
| 311 | 0.1% | 99.5% | |
| 312 | 0.6% | 99.4% | |
| 313 | 0.2% | 98.8% | |
| 314 | 0.1% | 98.5% | |
| 315 | 0.2% | 98% | |
| 316 | 0.2% | 98% | |
| 317 | 3% | 98% | Last Result | 
| 318 | 0.5% | 95% | |
| 319 | 0.5% | 94% | |
| 320 | 4% | 94% | |
| 321 | 2% | 90% | |
| 322 | 2% | 87% | |
| 323 | 6% | 86% | |
| 324 | 0.2% | 80% | |
| 325 | 0.3% | 80% | |
| 326 | 0.2% | 80% | Majority | 
| 327 | 0.3% | 80% | |
| 328 | 0.1% | 79% | |
| 329 | 6% | 79% | |
| 330 | 0.7% | 73% | |
| 331 | 1.4% | 72% | |
| 332 | 0.5% | 71% | |
| 333 | 14% | 71% | |
| 334 | 2% | 57% | |
| 335 | 0.1% | 55% | |
| 336 | 1.1% | 55% | |
| 337 | 3% | 53% | |
| 338 | 2% | 51% | Median | 
| 339 | 3% | 48% | |
| 340 | 3% | 45% | |
| 341 | 2% | 42% | |
| 342 | 11% | 40% | |
| 343 | 4% | 30% | |
| 344 | 3% | 26% | |
| 345 | 0.2% | 23% | |
| 346 | 0.4% | 22% | |
| 347 | 0.5% | 22% | |
| 348 | 0.2% | 21% | |
| 349 | 2% | 21% | |
| 350 | 4% | 19% | |
| 351 | 0.3% | 15% | |
| 352 | 0% | 15% | |
| 353 | 1.3% | 15% | |
| 354 | 1.1% | 13% | |
| 355 | 7% | 12% | |
| 356 | 0.1% | 5% | |
| 357 | 1.4% | 5% | |
| 358 | 0.5% | 3% | |
| 359 | 0.5% | 3% | |
| 360 | 0.2% | 2% | |
| 361 | 0.2% | 2% | |
| 362 | 0.3% | 2% | |
| 363 | 0.2% | 2% | |
| 364 | 0.1% | 1.4% | |
| 365 | 0.1% | 1.3% | |
| 366 | 0.3% | 1.2% | |
| 367 | 0.1% | 0.9% | |
| 368 | 0.2% | 0.9% | |
| 369 | 0.1% | 0.7% | |
| 370 | 0.1% | 0.6% | |
| 371 | 0.2% | 0.6% | |
| 372 | 0.1% | 0.4% | |
| 373 | 0.1% | 0.3% | |
| 374 | 0.1% | 0.2% | |
| 375 | 0% | 0.1% | |
| 376 | 0% | 0.1% | |
| 377 | 0% | 0.1% | |
| 378 | 0% | 0% | 
Labour Party
For a full overview of the results for this party, see the Labour Party page.

| Number of Seats | Probability | Accumulated | Special Marks | 
|---|---|---|---|
| 178 | 0.2% | 100% | |
| 179 | 0.1% | 99.8% | |
| 180 | 0% | 99.7% | |
| 181 | 0.2% | 99.7% | |
| 182 | 0.1% | 99.5% | |
| 183 | 0.3% | 99.4% | |
| 184 | 0.4% | 99.1% | |
| 185 | 0.2% | 98.8% | |
| 186 | 0.9% | 98.5% | |
| 187 | 0.1% | 98% | |
| 188 | 0.5% | 98% | |
| 189 | 0.2% | 97% | |
| 190 | 1.2% | 97% | |
| 191 | 0.5% | 96% | |
| 192 | 7% | 95% | |
| 193 | 1.4% | 88% | |
| 194 | 0.5% | 87% | |
| 195 | 0.1% | 87% | |
| 196 | 0.4% | 86% | |
| 197 | 2% | 86% | |
| 198 | 4% | 84% | |
| 199 | 3% | 80% | |
| 200 | 1.0% | 77% | |
| 201 | 2% | 76% | |
| 202 | 1.3% | 74% | |
| 203 | 0.7% | 73% | |
| 204 | 3% | 72% | |
| 205 | 12% | 69% | |
| 206 | 4% | 57% | |
| 207 | 4% | 53% | Median | 
| 208 | 2% | 49% | |
| 209 | 1.2% | 47% | |
| 210 | 0.8% | 46% | |
| 211 | 0.2% | 45% | |
| 212 | 4% | 45% | |
| 213 | 7% | 41% | |
| 214 | 0.2% | 34% | |
| 215 | 1.3% | 34% | |
| 216 | 9% | 33% | |
| 217 | 0.5% | 23% | |
| 218 | 5% | 23% | |
| 219 | 0.9% | 18% | |
| 220 | 0.9% | 17% | |
| 221 | 0.6% | 16% | |
| 222 | 2% | 15% | |
| 223 | 4% | 13% | |
| 224 | 1.2% | 9% | |
| 225 | 3% | 8% | |
| 226 | 0.2% | 5% | |
| 227 | 0.9% | 5% | |
| 228 | 0.4% | 4% | |
| 229 | 0.6% | 3% | |
| 230 | 0.1% | 3% | |
| 231 | 1.4% | 3% | |
| 232 | 0.1% | 1.1% | |
| 233 | 0.3% | 1.1% | |
| 234 | 0.2% | 0.8% | |
| 235 | 0.1% | 0.6% | |
| 236 | 0.2% | 0.4% | |
| 237 | 0.1% | 0.2% | |
| 238 | 0% | 0.1% | |
| 239 | 0% | 0.1% | |
| 240 | 0% | 0.1% | |
| 241 | 0% | 0.1% | |
| 242 | 0% | 0.1% | |
| 243 | 0% | 0.1% | |
| 244 | 0% | 0.1% | |
| 245 | 0% | 0.1% | |
| 246 | 0% | 0.1% | |
| 247 | 0% | 0% | |
| 248 | 0% | 0% | |
| 249 | 0% | 0% | |
| 250 | 0% | 0% | |
| 251 | 0% | 0% | |
| 252 | 0% | 0% | |
| 253 | 0% | 0% | |
| 254 | 0% | 0% | |
| 255 | 0% | 0% | |
| 256 | 0% | 0% | |
| 257 | 0% | 0% | |
| 258 | 0% | 0% | |
| 259 | 0% | 0% | |
| 260 | 0% | 0% | |
| 261 | 0% | 0% | |
| 262 | 0% | 0% | Last Result | 
Liberal Democrats
For a full overview of the results for this party, see the Liberal Democrats page.

| Number of Seats | Probability | Accumulated | Special Marks | 
|---|---|---|---|
| 12 | 0% | 100% | Last Result | 
| 13 | 0% | 100% | |
| 14 | 0% | 100% | |
| 15 | 0% | 100% | |
| 16 | 0% | 100% | |
| 17 | 0% | 100% | |
| 18 | 0.1% | 100% | |
| 19 | 0.1% | 99.9% | |
| 20 | 0.3% | 99.9% | |
| 21 | 0.3% | 99.5% | |
| 22 | 0.2% | 99.2% | |
| 23 | 0.5% | 99.1% | |
| 24 | 1.5% | 98.5% | |
| 25 | 3% | 97% | |
| 26 | 1.5% | 94% | |
| 27 | 5% | 92% | |
| 28 | 17% | 87% | |
| 29 | 35% | 70% | Median | 
| 30 | 24% | 35% | |
| 31 | 8% | 11% | |
| 32 | 1.2% | 2% | |
| 33 | 0.7% | 1.3% | |
| 34 | 0.1% | 0.6% | |
| 35 | 0.4% | 0.4% | |
| 36 | 0% | 0% | 
Scottish National Party
For a full overview of the results for this party, see the Scottish National Party page.

| Number of Seats | Probability | Accumulated | Special Marks | 
|---|---|---|---|
| 35 | 0% | 100% | Last Result | 
| 36 | 0% | 100% | |
| 37 | 0% | 100% | |
| 38 | 0.4% | 99.9% | |
| 39 | 0% | 99.5% | |
| 40 | 0% | 99.5% | |
| 41 | 4% | 99.5% | |
| 42 | 0.7% | 96% | |
| 43 | 0.6% | 95% | |
| 44 | 0% | 95% | |
| 45 | 5% | 95% | |
| 46 | 0% | 90% | |
| 47 | 20% | 90% | |
| 48 | 8% | 69% | |
| 49 | 0.2% | 61% | |
| 50 | 22% | 61% | Median | 
| 51 | 22% | 39% | |
| 52 | 5% | 17% | |
| 53 | 7% | 12% | |
| 54 | 5% | 5% | |
| 55 | 0.2% | 0.5% | |
| 56 | 0.2% | 0.3% | |
| 57 | 0% | 0% | 
Green Party
For a full overview of the results for this party, see the Green Party page.

| Number of Seats | Probability | Accumulated | Special Marks | 
|---|---|---|---|
| 1 | 87% | 100% | Last Result, Median | 
| 2 | 13% | 13% | |
| 3 | 0% | 0% | 
UK Independence Party
For a full overview of the results for this party, see the UK Independence Party page.

| Number of Seats | Probability | Accumulated | Special Marks | 
|---|---|---|---|
| 0 | 83% | 100% | Last Result, Median | 
| 1 | 17% | 17% | |
| 2 | 0% | 0% | 
Brexit Party
For a full overview of the results for this party, see the Brexit Party page.

| Number of Seats | Probability | Accumulated | Special Marks | 
|---|---|---|---|
| 0 | 76% | 100% | Last Result, Median | 
| 1 | 24% | 24% | |
| 2 | 0% | 0% | 
Plaid Cymru
For a full overview of the results for this party, see the Plaid Cymru page.

| Number of Seats | Probability | Accumulated | Special Marks | 
|---|---|---|---|
| 3 | 0.5% | 100% | |
| 4 | 6% | 99.5% | Last Result | 
| 5 | 42% | 94% | |
| 6 | 12% | 52% | Median | 
| 7 | 2% | 40% | |
| 8 | 35% | 38% | |
| 9 | 0.9% | 3% | |
| 10 | 2% | 2% | |
| 11 | 0.5% | 0.5% | |
| 12 | 0% | 0% | 
Coalitions

Confidence Intervals
| Coalition | Last Result | Median | Majority? | 80% Confidence Interval | 90% Confidence Interval | 95% Confidence Interval | 99% Confidence Interval | 
|---|---|---|---|---|---|---|---|
| Conservative Party – Scottish National Party – Plaid Cymru | 356 | 395 | 100% | 376–410 | 375–411 | 373–415 | 366–423 | 
| Conservative Party – Scottish National Party | 352 | 388 | 100% | 371–402 | 370–404 | 368–408 | 361–415 | 
| Conservative Party – Liberal Democrats | 329 | 366 | 100% | 350–384 | 347–385 | 346–388 | 340–397 | 
| Conservative Party – Plaid Cymru | 321 | 344 | 91% | 326–363 | 323–363 | 322–366 | 316–376 | 
| Conservative Party | 317 | 338 | 80% | 320–355 | 317–355 | 317–359 | 310–371 | 
| Labour Party – Liberal Democrats – Scottish National Party – Plaid Cymru | 313 | 292 | 0.1% | 276–310 | 275–313 | 272–313 | 260–320 | 
| Labour Party – Liberal Democrats – Scottish National Party | 309 | 287 | 0% | 268–305 | 268–307 | 265–308 | 255–315 | 
| Labour Party – Scottish National Party – Plaid Cymru | 301 | 264 | 0% | 247–279 | 246–283 | 243–284 | 234–291 | 
| Labour Party – Scottish National Party | 297 | 258 | 0% | 239–274 | 239–278 | 237–278 | 227–286 | 
| Labour Party – Liberal Democrats – Plaid Cymru | 278 | 242 | 0% | 229–259 | 227–260 | 222–263 | 216–269 | 
| Labour Party – Liberal Democrats | 274 | 236 | 0% | 221–254 | 220–255 | 216–258 | 208–265 | 
| Labour Party – Plaid Cymru | 266 | 214 | 0% | 200–228 | 198–232 | 194–236 | 189–241 | 
| Labour Party | 262 | 207 | 0% | 192–223 | 192–225 | 188–231 | 182–235 | 
Conservative Party – Scottish National Party – Plaid Cymru

| Number of Seats | Probability | Accumulated | Special Marks | 
|---|---|---|---|
| 356 | 0% | 100% | Last Result | 
| 357 | 0% | 100% | |
| 358 | 0% | 99.9% | |
| 359 | 0% | 99.9% | |
| 360 | 0% | 99.9% | |
| 361 | 0.1% | 99.9% | |
| 362 | 0% | 99.8% | |
| 363 | 0% | 99.8% | |
| 364 | 0.1% | 99.8% | |
| 365 | 0.2% | 99.7% | |
| 366 | 0.2% | 99.6% | |
| 367 | 0.4% | 99.4% | |
| 368 | 0.2% | 99.1% | |
| 369 | 0.1% | 98.8% | |
| 370 | 0.2% | 98.7% | |
| 371 | 0.2% | 98.5% | |
| 372 | 0.2% | 98% | |
| 373 | 1.4% | 98% | |
| 374 | 0.6% | 97% | |
| 375 | 3% | 96% | |
| 376 | 4% | 93% | |
| 377 | 1.3% | 89% | |
| 378 | 0.2% | 88% | |
| 379 | 1.3% | 88% | |
| 380 | 2% | 86% | |
| 381 | 1.1% | 84% | |
| 382 | 5% | 83% | |
| 383 | 1.0% | 78% | |
| 384 | 1.4% | 77% | |
| 385 | 0.5% | 76% | |
| 386 | 8% | 75% | |
| 387 | 3% | 67% | |
| 388 | 5% | 64% | |
| 389 | 4% | 59% | |
| 390 | 0.3% | 55% | |
| 391 | 0.3% | 55% | |
| 392 | 1.3% | 55% | |
| 393 | 1.1% | 54% | |
| 394 | 1.0% | 52% | Median | 
| 395 | 8% | 51% | |
| 396 | 2% | 44% | |
| 397 | 11% | 42% | |
| 398 | 4% | 31% | |
| 399 | 1.1% | 27% | |
| 400 | 2% | 26% | |
| 401 | 0.7% | 24% | |
| 402 | 0.5% | 23% | |
| 403 | 4% | 23% | |
| 404 | 3% | 19% | |
| 405 | 0.3% | 16% | |
| 406 | 0.6% | 16% | |
| 407 | 1.5% | 15% | |
| 408 | 0.5% | 14% | |
| 409 | 1.3% | 13% | |
| 410 | 7% | 12% | |
| 411 | 1.0% | 5% | |
| 412 | 0.5% | 4% | |
| 413 | 0.1% | 4% | |
| 414 | 0.7% | 3% | |
| 415 | 0.6% | 3% | |
| 416 | 0.3% | 2% | |
| 417 | 0.3% | 2% | |
| 418 | 0.5% | 2% | |
| 419 | 0.2% | 1.1% | |
| 420 | 0.1% | 0.9% | |
| 421 | 0.1% | 0.8% | |
| 422 | 0.1% | 0.7% | |
| 423 | 0.2% | 0.6% | |
| 424 | 0.2% | 0.4% | |
| 425 | 0.1% | 0.2% | |
| 426 | 0% | 0.1% | |
| 427 | 0% | 0.1% | |
| 428 | 0% | 0.1% | |
| 429 | 0% | 0% | 
Conservative Party – Scottish National Party

| Number of Seats | Probability | Accumulated | Special Marks | 
|---|---|---|---|
| 352 | 0% | 100% | Last Result | 
| 353 | 0% | 99.9% | |
| 354 | 0% | 99.9% | |
| 355 | 0% | 99.9% | |
| 356 | 0.1% | 99.9% | |
| 357 | 0% | 99.8% | |
| 358 | 0% | 99.8% | |
| 359 | 0% | 99.8% | |
| 360 | 0.1% | 99.7% | |
| 361 | 0.1% | 99.6% | |
| 362 | 0.5% | 99.5% | |
| 363 | 0.3% | 99.0% | |
| 364 | 0.1% | 98.6% | |
| 365 | 0.1% | 98% | |
| 366 | 0% | 98% | |
| 367 | 0.6% | 98% | |
| 368 | 2% | 98% | |
| 369 | 0.8% | 96% | |
| 370 | 4% | 95% | |
| 371 | 4% | 92% | |
| 372 | 0.9% | 88% | |
| 373 | 0.9% | 87% | |
| 374 | 6% | 87% | |
| 375 | 2% | 80% | |
| 376 | 0.7% | 78% | |
| 377 | 0.1% | 77% | |
| 378 | 0.3% | 77% | |
| 379 | 1.2% | 77% | |
| 380 | 14% | 76% | |
| 381 | 0.5% | 62% | |
| 382 | 2% | 62% | |
| 383 | 1.5% | 60% | |
| 384 | 4% | 59% | |
| 385 | 0.2% | 55% | |
| 386 | 0.3% | 55% | |
| 387 | 3% | 54% | |
| 388 | 1.1% | 51% | Median | 
| 389 | 2% | 50% | |
| 390 | 6% | 48% | |
| 391 | 4% | 42% | |
| 392 | 14% | 39% | |
| 393 | 0.5% | 25% | |
| 394 | 0.9% | 24% | |
| 395 | 4% | 23% | |
| 396 | 3% | 19% | |
| 397 | 0.8% | 17% | |
| 398 | 0.3% | 16% | |
| 399 | 0.7% | 15% | |
| 400 | 0.1% | 15% | |
| 401 | 0.6% | 15% | |
| 402 | 8% | 14% | |
| 403 | 0.9% | 6% | |
| 404 | 1.3% | 6% | |
| 405 | 0.5% | 4% | |
| 406 | 0.6% | 4% | |
| 407 | 0.4% | 3% | |
| 408 | 0.3% | 3% | |
| 409 | 0.4% | 2% | |
| 410 | 0.2% | 2% | |
| 411 | 0.2% | 2% | |
| 412 | 0.5% | 2% | |
| 413 | 0.4% | 1.1% | |
| 414 | 0.2% | 0.8% | |
| 415 | 0.2% | 0.6% | |
| 416 | 0.2% | 0.4% | |
| 417 | 0.1% | 0.2% | |
| 418 | 0% | 0.2% | |
| 419 | 0.1% | 0.1% | |
| 420 | 0% | 0.1% | |
| 421 | 0% | 0% | 
Conservative Party – Liberal Democrats

| Number of Seats | Probability | Accumulated | Special Marks | 
|---|---|---|---|
| 328 | 0% | 100% | |
| 329 | 0% | 99.9% | Last Result | 
| 330 | 0% | 99.9% | |
| 331 | 0% | 99.9% | |
| 332 | 0% | 99.9% | |
| 333 | 0% | 99.9% | |
| 334 | 0% | 99.9% | |
| 335 | 0% | 99.9% | |
| 336 | 0.1% | 99.9% | |
| 337 | 0% | 99.8% | |
| 338 | 0% | 99.8% | |
| 339 | 0.2% | 99.7% | |
| 340 | 0.4% | 99.5% | |
| 341 | 0.1% | 99.2% | |
| 342 | 0.3% | 99.1% | |
| 343 | 0.2% | 98.8% | |
| 344 | 0.3% | 98.6% | |
| 345 | 0.2% | 98% | |
| 346 | 1.0% | 98% | |
| 347 | 4% | 97% | |
| 348 | 2% | 94% | |
| 349 | 0.4% | 92% | |
| 350 | 1.2% | 91% | |
| 351 | 3% | 90% | |
| 352 | 0.6% | 87% | |
| 353 | 6% | 86% | |
| 354 | 0.5% | 80% | |
| 355 | 0.3% | 79% | |
| 356 | 0.1% | 79% | |
| 357 | 0.3% | 79% | |
| 358 | 1.3% | 78% | |
| 359 | 5% | 77% | |
| 360 | 0.2% | 72% | |
| 361 | 1.0% | 72% | |
| 362 | 13% | 71% | |
| 363 | 4% | 58% | |
| 364 | 0.9% | 54% | |
| 365 | 0.9% | 53% | |
| 366 | 3% | 52% | |
| 367 | 1.4% | 49% | Median | 
| 368 | 4% | 47% | |
| 369 | 2% | 43% | |
| 370 | 9% | 41% | |
| 371 | 4% | 32% | |
| 372 | 2% | 28% | |
| 373 | 4% | 26% | |
| 374 | 0.2% | 22% | |
| 375 | 0.4% | 22% | |
| 376 | 1.0% | 22% | |
| 377 | 0.7% | 21% | |
| 378 | 0.3% | 20% | |
| 379 | 2% | 20% | |
| 380 | 4% | 18% | |
| 381 | 2% | 14% | |
| 382 | 0.1% | 12% | |
| 383 | 0.1% | 12% | |
| 384 | 7% | 12% | |
| 385 | 1.1% | 5% | |
| 386 | 1.5% | 4% | |
| 387 | 0.1% | 3% | |
| 388 | 0.7% | 3% | |
| 389 | 0.1% | 2% | |
| 390 | 0.5% | 2% | |
| 391 | 0.1% | 1.5% | |
| 392 | 0.1% | 1.4% | |
| 393 | 0.1% | 1.2% | |
| 394 | 0.1% | 1.1% | |
| 395 | 0.2% | 1.0% | |
| 396 | 0.2% | 0.8% | |
| 397 | 0.1% | 0.6% | |
| 398 | 0% | 0.5% | |
| 399 | 0.3% | 0.5% | |
| 400 | 0.1% | 0.2% | |
| 401 | 0% | 0.1% | |
| 402 | 0% | 0% | 
Conservative Party – Plaid Cymru

| Number of Seats | Probability | Accumulated | Special Marks | 
|---|---|---|---|
| 306 | 0% | 100% | |
| 307 | 0% | 99.9% | |
| 308 | 0% | 99.9% | |
| 309 | 0% | 99.9% | |
| 310 | 0.1% | 99.9% | |
| 311 | 0% | 99.8% | |
| 312 | 0.1% | 99.8% | |
| 313 | 0% | 99.7% | |
| 314 | 0.1% | 99.7% | |
| 315 | 0% | 99.6% | |
| 316 | 0.3% | 99.5% | |
| 317 | 0.4% | 99.3% | |
| 318 | 0.2% | 98.9% | |
| 319 | 0% | 98.7% | |
| 320 | 0.3% | 98.6% | |
| 321 | 0.1% | 98% | Last Result | 
| 322 | 3% | 98% | |
| 323 | 0.1% | 95% | |
| 324 | 0.3% | 95% | |
| 325 | 3% | 95% | |
| 326 | 3% | 91% | Majority | 
| 327 | 1.3% | 89% | |
| 328 | 1.4% | 87% | |
| 329 | 0.2% | 86% | |
| 330 | 0.6% | 86% | |
| 331 | 5% | 85% | |
| 332 | 0.3% | 80% | |
| 333 | 0.9% | 80% | |
| 334 | 0.5% | 79% | |
| 335 | 0.6% | 78% | |
| 336 | 1.0% | 78% | |
| 337 | 7% | 77% | |
| 338 | 5% | 70% | |
| 339 | 10% | 65% | |
| 340 | 0.2% | 55% | |
| 341 | 0.1% | 55% | |
| 342 | 0.8% | 55% | |
| 343 | 3% | 54% | |
| 344 | 3% | 51% | Median | 
| 345 | 3% | 48% | |
| 346 | 3% | 45% | |
| 347 | 11% | 42% | |
| 348 | 0.7% | 31% | |
| 349 | 2% | 30% | |
| 350 | 0.3% | 28% | |
| 351 | 3% | 28% | |
| 352 | 3% | 25% | |
| 353 | 0.1% | 22% | |
| 354 | 2% | 22% | |
| 355 | 0.3% | 20% | |
| 356 | 0.1% | 20% | |
| 357 | 0.9% | 20% | |
| 358 | 5% | 19% | |
| 359 | 1.2% | 15% | |
| 360 | 0.6% | 13% | |
| 361 | 0.1% | 13% | |
| 362 | 1.3% | 13% | |
| 363 | 8% | 11% | |
| 364 | 0.1% | 3% | |
| 365 | 0.6% | 3% | |
| 366 | 0.4% | 3% | |
| 367 | 0.2% | 2% | |
| 368 | 0.3% | 2% | |
| 369 | 0.1% | 2% | |
| 370 | 0% | 2% | |
| 371 | 0.2% | 1.5% | |
| 372 | 0.1% | 1.3% | |
| 373 | 0.1% | 1.2% | |
| 374 | 0.2% | 1.1% | |
| 375 | 0.1% | 0.8% | |
| 376 | 0.2% | 0.7% | |
| 377 | 0.1% | 0.5% | |
| 378 | 0.1% | 0.3% | |
| 379 | 0.1% | 0.3% | |
| 380 | 0% | 0.2% | |
| 381 | 0% | 0.2% | |
| 382 | 0.1% | 0.2% | |
| 383 | 0% | 0.1% | |
| 384 | 0% | 0.1% | |
| 385 | 0% | 0.1% | |
| 386 | 0% | 0% | 
Conservative Party

| Number of Seats | Probability | Accumulated | Special Marks | 
|---|---|---|---|
| 301 | 0% | 100% | |
| 302 | 0% | 99.9% | |
| 303 | 0% | 99.9% | |
| 304 | 0% | 99.9% | |
| 305 | 0.1% | 99.9% | |
| 306 | 0% | 99.8% | |
| 307 | 0.1% | 99.8% | |
| 308 | 0% | 99.7% | |
| 309 | 0.1% | 99.6% | |
| 310 | 0.1% | 99.6% | |
| 311 | 0.1% | 99.5% | |
| 312 | 0.6% | 99.4% | |
| 313 | 0.2% | 98.8% | |
| 314 | 0.1% | 98.5% | |
| 315 | 0.2% | 98% | |
| 316 | 0.2% | 98% | |
| 317 | 3% | 98% | Last Result | 
| 318 | 0.5% | 95% | |
| 319 | 0.5% | 94% | |
| 320 | 4% | 94% | |
| 321 | 2% | 90% | |
| 322 | 2% | 87% | |
| 323 | 6% | 86% | |
| 324 | 0.2% | 80% | |
| 325 | 0.3% | 80% | |
| 326 | 0.2% | 80% | Majority | 
| 327 | 0.3% | 80% | |
| 328 | 0.1% | 79% | |
| 329 | 6% | 79% | |
| 330 | 0.7% | 73% | |
| 331 | 1.4% | 72% | |
| 332 | 0.5% | 71% | |
| 333 | 14% | 71% | |
| 334 | 2% | 57% | |
| 335 | 0.1% | 55% | |
| 336 | 1.1% | 55% | |
| 337 | 3% | 53% | |
| 338 | 2% | 51% | Median | 
| 339 | 3% | 48% | |
| 340 | 3% | 45% | |
| 341 | 2% | 42% | |
| 342 | 11% | 40% | |
| 343 | 4% | 30% | |
| 344 | 3% | 26% | |
| 345 | 0.2% | 23% | |
| 346 | 0.4% | 22% | |
| 347 | 0.5% | 22% | |
| 348 | 0.2% | 21% | |
| 349 | 2% | 21% | |
| 350 | 4% | 19% | |
| 351 | 0.3% | 15% | |
| 352 | 0% | 15% | |
| 353 | 1.3% | 15% | |
| 354 | 1.1% | 13% | |
| 355 | 7% | 12% | |
| 356 | 0.1% | 5% | |
| 357 | 1.4% | 5% | |
| 358 | 0.5% | 3% | |
| 359 | 0.5% | 3% | |
| 360 | 0.2% | 2% | |
| 361 | 0.2% | 2% | |
| 362 | 0.3% | 2% | |
| 363 | 0.2% | 2% | |
| 364 | 0.1% | 1.4% | |
| 365 | 0.1% | 1.3% | |
| 366 | 0.3% | 1.2% | |
| 367 | 0.1% | 0.9% | |
| 368 | 0.2% | 0.9% | |
| 369 | 0.1% | 0.7% | |
| 370 | 0.1% | 0.6% | |
| 371 | 0.2% | 0.6% | |
| 372 | 0.1% | 0.4% | |
| 373 | 0.1% | 0.3% | |
| 374 | 0.1% | 0.2% | |
| 375 | 0% | 0.1% | |
| 376 | 0% | 0.1% | |
| 377 | 0% | 0.1% | |
| 378 | 0% | 0% | 
Labour Party – Liberal Democrats – Scottish National Party – Plaid Cymru

| Number of Seats | Probability | Accumulated | Special Marks | 
|---|---|---|---|
| 254 | 0% | 100% | |
| 255 | 0% | 99.9% | |
| 256 | 0% | 99.9% | |
| 257 | 0.1% | 99.9% | |
| 258 | 0.1% | 99.8% | |
| 259 | 0.1% | 99.7% | |
| 260 | 0.1% | 99.6% | |
| 261 | 0.1% | 99.4% | |
| 262 | 0.1% | 99.4% | |
| 263 | 0.1% | 99.3% | |
| 264 | 0.2% | 99.1% | |
| 265 | 0.2% | 99.0% | |
| 266 | 0.2% | 98.8% | |
| 267 | 0.2% | 98.7% | |
| 268 | 0.3% | 98% | |
| 269 | 0.1% | 98% | |
| 270 | 0.4% | 98% | |
| 271 | 0.2% | 98% | |
| 272 | 0.6% | 98% | |
| 273 | 0.3% | 97% | |
| 274 | 1.4% | 97% | |
| 275 | 0.2% | 95% | |
| 276 | 7% | 95% | |
| 277 | 1.4% | 88% | |
| 278 | 0.9% | 86% | |
| 279 | 0.1% | 85% | |
| 280 | 0.5% | 85% | |
| 281 | 4% | 85% | |
| 282 | 2% | 80% | |
| 283 | 0.1% | 78% | |
| 284 | 0.7% | 78% | |
| 285 | 0.2% | 78% | |
| 286 | 2% | 78% | |
| 287 | 2% | 75% | |
| 288 | 13% | 73% | |
| 289 | 2% | 60% | |
| 290 | 4% | 59% | |
| 291 | 1.1% | 54% | |
| 292 | 4% | 53% | Median | 
| 293 | 3% | 50% | |
| 294 | 0.3% | 47% | |
| 295 | 0.9% | 46% | |
| 296 | 1.0% | 45% | |
| 297 | 6% | 44% | |
| 298 | 9% | 38% | |
| 299 | 0.5% | 29% | |
| 300 | 2% | 29% | |
| 301 | 0.8% | 27% | |
| 302 | 5% | 26% | |
| 303 | 0.2% | 21% | |
| 304 | 0.2% | 21% | |
| 305 | 0.2% | 20% | |
| 306 | 0.4% | 20% | |
| 307 | 6% | 20% | |
| 308 | 1.3% | 14% | |
| 309 | 1.3% | 13% | |
| 310 | 5% | 12% | |
| 311 | 0.2% | 6% | |
| 312 | 1.0% | 6% | |
| 313 | 3% | 5% | Last Result | 
| 314 | 0.2% | 2% | |
| 315 | 0.3% | 2% | |
| 316 | 0.1% | 2% | |
| 317 | 0.1% | 1.5% | |
| 318 | 0.3% | 1.4% | |
| 319 | 0.6% | 1.1% | |
| 320 | 0.1% | 0.5% | |
| 321 | 0.1% | 0.4% | |
| 322 | 0% | 0.4% | |
| 323 | 0.1% | 0.3% | |
| 324 | 0% | 0.2% | |
| 325 | 0.1% | 0.2% | |
| 326 | 0% | 0.1% | Majority | 
| 327 | 0% | 0.1% | |
| 328 | 0% | 0.1% | |
| 329 | 0% | 0.1% | |
| 330 | 0% | 0% | 
Labour Party – Liberal Democrats – Scottish National Party

| Number of Seats | Probability | Accumulated | Special Marks | 
|---|---|---|---|
| 246 | 0% | 100% | |
| 247 | 0% | 99.9% | |
| 248 | 0% | 99.9% | |
| 249 | 0.1% | 99.9% | |
| 250 | 0% | 99.8% | |
| 251 | 0% | 99.8% | |
| 252 | 0.1% | 99.8% | |
| 253 | 0.1% | 99.7% | |
| 254 | 0.2% | 99.7% | |
| 255 | 0.2% | 99.5% | |
| 256 | 0.2% | 99.3% | |
| 257 | 0.2% | 99.1% | |
| 258 | 0.2% | 98.9% | |
| 259 | 0% | 98.7% | |
| 260 | 0.2% | 98.7% | |
| 261 | 0.1% | 98% | |
| 262 | 0.1% | 98% | |
| 263 | 0.4% | 98% | |
| 264 | 0.1% | 98% | |
| 265 | 0.5% | 98% | |
| 266 | 0.6% | 97% | |
| 267 | 0.3% | 97% | |
| 268 | 8% | 96% | |
| 269 | 1.3% | 89% | |
| 270 | 0.6% | 87% | |
| 271 | 0.4% | 87% | |
| 272 | 1.2% | 86% | |
| 273 | 5% | 85% | |
| 274 | 0.6% | 80% | |
| 275 | 0.1% | 80% | |
| 276 | 0.3% | 80% | |
| 277 | 2% | 79% | |
| 278 | 2% | 78% | |
| 279 | 0.9% | 76% | |
| 280 | 3% | 75% | |
| 281 | 0.9% | 72% | |
| 282 | 1.2% | 71% | |
| 283 | 12% | 70% | |
| 284 | 3% | 58% | |
| 285 | 4% | 56% | |
| 286 | 0.7% | 51% | Median | 
| 287 | 4% | 51% | |
| 288 | 2% | 47% | |
| 289 | 0.5% | 45% | |
| 290 | 0.1% | 45% | |
| 291 | 0.9% | 45% | |
| 292 | 14% | 44% | |
| 293 | 1.1% | 30% | |
| 294 | 6% | 29% | |
| 295 | 1.3% | 23% | |
| 296 | 0.6% | 22% | |
| 297 | 0.2% | 21% | |
| 298 | 1.1% | 21% | |
| 299 | 5% | 20% | |
| 300 | 0.5% | 15% | |
| 301 | 0.3% | 14% | |
| 302 | 1.2% | 14% | |
| 303 | 1.1% | 13% | |
| 304 | 2% | 12% | |
| 305 | 5% | 10% | |
| 306 | 0.3% | 6% | |
| 307 | 0.4% | 5% | |
| 308 | 3% | 5% | |
| 309 | 0.2% | 2% | Last Result | 
| 310 | 0.2% | 2% | |
| 311 | 0.1% | 1.4% | |
| 312 | 0% | 1.4% | |
| 313 | 0.3% | 1.3% | |
| 314 | 0.4% | 1.0% | |
| 315 | 0.2% | 0.6% | |
| 316 | 0.1% | 0.4% | |
| 317 | 0.1% | 0.3% | |
| 318 | 0.1% | 0.3% | |
| 319 | 0% | 0.2% | |
| 320 | 0.1% | 0.2% | |
| 321 | 0% | 0.1% | |
| 322 | 0% | 0.1% | |
| 323 | 0% | 0.1% | |
| 324 | 0% | 0.1% | |
| 325 | 0% | 0% | 
Labour Party – Scottish National Party – Plaid Cymru

| Number of Seats | Probability | Accumulated | Special Marks | 
|---|---|---|---|
| 229 | 0% | 100% | |
| 230 | 0% | 99.9% | |
| 231 | 0.1% | 99.9% | |
| 232 | 0.3% | 99.8% | |
| 233 | 0% | 99.5% | |
| 234 | 0.1% | 99.5% | |
| 235 | 0.2% | 99.4% | |
| 236 | 0.3% | 99.2% | |
| 237 | 0.1% | 98.9% | |
| 238 | 0.1% | 98.8% | |
| 239 | 0.2% | 98.7% | |
| 240 | 0.3% | 98.5% | |
| 241 | 0.4% | 98% | |
| 242 | 0.3% | 98% | |
| 243 | 0.5% | 98% | |
| 244 | 0.2% | 97% | |
| 245 | 1.4% | 97% | |
| 246 | 1.1% | 96% | |
| 247 | 7% | 94% | |
| 248 | 0.2% | 88% | |
| 249 | 0.2% | 88% | |
| 250 | 2% | 88% | |
| 251 | 4% | 86% | |
| 252 | 2% | 82% | |
| 253 | 0.8% | 80% | |
| 254 | 0.2% | 79% | |
| 255 | 1.0% | 79% | |
| 256 | 0.2% | 78% | |
| 257 | 3% | 78% | |
| 258 | 2% | 75% | |
| 259 | 0.7% | 72% | |
| 260 | 13% | 72% | |
| 261 | 0.3% | 59% | |
| 262 | 5% | 58% | |
| 263 | 2% | 53% | Median | 
| 264 | 3% | 51% | |
| 265 | 0.3% | 48% | |
| 266 | 1.0% | 48% | |
| 267 | 3% | 47% | |
| 268 | 6% | 44% | |
| 269 | 10% | 38% | |
| 270 | 0.4% | 28% | |
| 271 | 0.9% | 28% | |
| 272 | 5% | 27% | |
| 273 | 0.4% | 22% | |
| 274 | 0.4% | 22% | |
| 275 | 0.3% | 21% | |
| 276 | 0.3% | 21% | |
| 277 | 6% | 21% | |
| 278 | 1.2% | 15% | |
| 279 | 4% | 13% | |
| 280 | 0.8% | 10% | |
| 281 | 0.3% | 9% | |
| 282 | 0.6% | 9% | |
| 283 | 5% | 8% | |
| 284 | 1.2% | 3% | |
| 285 | 0.1% | 2% | |
| 286 | 0.1% | 2% | |
| 287 | 0.2% | 2% | |
| 288 | 0.3% | 1.3% | |
| 289 | 0.1% | 0.9% | |
| 290 | 0.1% | 0.8% | |
| 291 | 0.4% | 0.7% | |
| 292 | 0.1% | 0.3% | |
| 293 | 0% | 0.2% | |
| 294 | 0% | 0.2% | |
| 295 | 0.1% | 0.2% | |
| 296 | 0% | 0.1% | |
| 297 | 0% | 0.1% | |
| 298 | 0% | 0.1% | |
| 299 | 0% | 0.1% | |
| 300 | 0% | 0.1% | |
| 301 | 0% | 0.1% | Last Result | 
| 302 | 0% | 0.1% | |
| 303 | 0% | 0% | 
Labour Party – Scottish National Party

| Number of Seats | Probability | Accumulated | Special Marks | 
|---|---|---|---|
| 222 | 0% | 100% | |
| 223 | 0% | 99.9% | |
| 224 | 0.1% | 99.9% | |
| 225 | 0% | 99.8% | |
| 226 | 0.2% | 99.8% | |
| 227 | 0.2% | 99.6% | |
| 228 | 0.2% | 99.4% | |
| 229 | 0.2% | 99.2% | |
| 230 | 0.1% | 99.0% | |
| 231 | 0.1% | 98.8% | |
| 232 | 0.1% | 98.8% | |
| 233 | 0.2% | 98.6% | |
| 234 | 0.2% | 98% | |
| 235 | 0.2% | 98% | |
| 236 | 0.3% | 98% | |
| 237 | 0.8% | 98% | |
| 238 | 1.1% | 97% | |
| 239 | 7% | 96% | |
| 240 | 2% | 89% | |
| 241 | 0.2% | 87% | |
| 242 | 0.1% | 87% | |
| 243 | 4% | 87% | |
| 244 | 0.6% | 83% | |
| 245 | 2% | 83% | |
| 246 | 1.0% | 81% | |
| 247 | 2% | 80% | |
| 248 | 0.2% | 78% | |
| 249 | 2% | 78% | |
| 250 | 1.0% | 76% | |
| 251 | 0.1% | 75% | |
| 252 | 4% | 75% | |
| 253 | 3% | 71% | |
| 254 | 0.5% | 68% | |
| 255 | 9% | 68% | |
| 256 | 6% | 59% | |
| 257 | 2% | 53% | Median | 
| 258 | 2% | 50% | |
| 259 | 1.5% | 48% | |
| 260 | 0.4% | 47% | |
| 261 | 0.1% | 47% | |
| 262 | 2% | 46% | |
| 263 | 15% | 44% | |
| 264 | 5% | 29% | |
| 265 | 1.2% | 24% | |
| 266 | 0.5% | 22% | |
| 267 | 0.5% | 22% | |
| 268 | 0.2% | 21% | |
| 269 | 6% | 21% | |
| 270 | 0.2% | 16% | |
| 271 | 0.8% | 15% | |
| 272 | 0.9% | 15% | |
| 273 | 1.1% | 14% | |
| 274 | 4% | 13% | |
| 275 | 1.0% | 9% | |
| 276 | 0.6% | 8% | |
| 277 | 0.7% | 8% | |
| 278 | 5% | 7% | |
| 279 | 0.6% | 2% | |
| 280 | 0.1% | 2% | |
| 281 | 0% | 1.5% | |
| 282 | 0.3% | 1.4% | |
| 283 | 0.1% | 1.1% | |
| 284 | 0.3% | 1.0% | |
| 285 | 0.1% | 0.7% | |
| 286 | 0.4% | 0.7% | |
| 287 | 0% | 0.2% | |
| 288 | 0% | 0.2% | |
| 289 | 0% | 0.2% | |
| 290 | 0% | 0.1% | |
| 291 | 0% | 0.1% | |
| 292 | 0% | 0.1% | |
| 293 | 0% | 0.1% | |
| 294 | 0% | 0.1% | |
| 295 | 0% | 0.1% | |
| 296 | 0% | 0.1% | |
| 297 | 0% | 0.1% | Last Result | 
| 298 | 0% | 0% | 
Labour Party – Liberal Democrats – Plaid Cymru

| Number of Seats | Probability | Accumulated | Special Marks | 
|---|---|---|---|
| 211 | 0.1% | 100% | |
| 212 | 0.1% | 99.9% | |
| 213 | 0.1% | 99.9% | |
| 214 | 0.1% | 99.8% | |
| 215 | 0.1% | 99.7% | |
| 216 | 0.2% | 99.6% | |
| 217 | 0.2% | 99.4% | |
| 218 | 0.5% | 99.1% | |
| 219 | 0.3% | 98.6% | |
| 220 | 0.2% | 98% | |
| 221 | 0.4% | 98% | |
| 222 | 0.2% | 98% | |
| 223 | 0.3% | 97% | |
| 224 | 0.6% | 97% | |
| 225 | 0.4% | 97% | |
| 226 | 0.5% | 96% | |
| 227 | 1.3% | 96% | |
| 228 | 1.0% | 94% | |
| 229 | 8% | 93% | |
| 230 | 0.1% | 85% | |
| 231 | 0.2% | 85% | |
| 232 | 0.9% | 85% | |
| 233 | 0.1% | 84% | |
| 234 | 0.8% | 84% | |
| 235 | 3% | 83% | |
| 236 | 4% | 81% | |
| 237 | 0.6% | 76% | |
| 238 | 15% | 76% | |
| 239 | 3% | 61% | |
| 240 | 4% | 59% | |
| 241 | 4% | 55% | |
| 242 | 1.2% | 50% | Median | 
| 243 | 3% | 49% | |
| 244 | 0.1% | 46% | |
| 245 | 0.1% | 46% | |
| 246 | 4% | 45% | |
| 247 | 1.0% | 41% | |
| 248 | 0.8% | 40% | |
| 249 | 2% | 40% | |
| 250 | 1.0% | 38% | |
| 251 | 13% | 37% | |
| 252 | 0.9% | 24% | |
| 253 | 0.1% | 23% | |
| 254 | 0.2% | 23% | |
| 255 | 1.1% | 22% | |
| 256 | 8% | 21% | |
| 257 | 0.7% | 13% | |
| 258 | 0.6% | 13% | |
| 259 | 4% | 12% | |
| 260 | 3% | 8% | |
| 261 | 0.8% | 5% | |
| 262 | 0.3% | 4% | |
| 263 | 2% | 4% | |
| 264 | 0.1% | 2% | |
| 265 | 0.1% | 2% | |
| 266 | 0.2% | 2% | |
| 267 | 0.1% | 1.4% | |
| 268 | 0.3% | 1.2% | |
| 269 | 0.6% | 1.0% | |
| 270 | 0.1% | 0.4% | |
| 271 | 0% | 0.3% | |
| 272 | 0% | 0.2% | |
| 273 | 0% | 0.2% | |
| 274 | 0.1% | 0.2% | |
| 275 | 0% | 0.1% | |
| 276 | 0% | 0.1% | |
| 277 | 0% | 0.1% | |
| 278 | 0% | 0.1% | Last Result | 
| 279 | 0% | 0% | 
Labour Party – Liberal Democrats

| Number of Seats | Probability | Accumulated | Special Marks | 
|---|---|---|---|
| 203 | 0% | 100% | |
| 204 | 0.1% | 99.9% | |
| 205 | 0% | 99.9% | |
| 206 | 0.1% | 99.9% | |
| 207 | 0.2% | 99.7% | |
| 208 | 0.2% | 99.6% | |
| 209 | 0.1% | 99.4% | |
| 210 | 0.2% | 99.3% | |
| 211 | 0.1% | 99.2% | |
| 212 | 0.2% | 99.0% | |
| 213 | 0.6% | 98.8% | |
| 214 | 0.1% | 98% | |
| 215 | 0.4% | 98% | |
| 216 | 0.8% | 98% | |
| 217 | 0.3% | 97% | |
| 218 | 0.1% | 97% | |
| 219 | 0.6% | 96% | |
| 220 | 1.0% | 96% | |
| 221 | 7% | 95% | |
| 222 | 2% | 88% | |
| 223 | 0.2% | 86% | |
| 224 | 2% | 86% | |
| 225 | 0.4% | 84% | |
| 226 | 0.3% | 84% | |
| 227 | 2% | 84% | |
| 228 | 4% | 81% | |
| 229 | 1.1% | 77% | |
| 230 | 2% | 76% | |
| 231 | 0.8% | 74% | |
| 232 | 3% | 73% | |
| 233 | 11% | 70% | |
| 234 | 1.4% | 59% | |
| 235 | 7% | 57% | |
| 236 | 3% | 50% | Median | 
| 237 | 0.9% | 47% | |
| 238 | 1.1% | 46% | |
| 239 | 0.4% | 45% | |
| 240 | 0.1% | 45% | |
| 241 | 4% | 45% | |
| 242 | 1.2% | 41% | |
| 243 | 5% | 40% | |
| 244 | 2% | 35% | |
| 245 | 9% | 33% | |
| 246 | 0.2% | 24% | |
| 247 | 1.4% | 24% | |
| 248 | 6% | 23% | |
| 249 | 1.1% | 17% | |
| 250 | 0.5% | 16% | |
| 251 | 3% | 15% | |
| 252 | 0.3% | 12% | |
| 253 | 0.9% | 12% | |
| 254 | 4% | 11% | |
| 255 | 4% | 7% | |
| 256 | 0.3% | 4% | |
| 257 | 0.3% | 3% | |
| 258 | 1.4% | 3% | |
| 259 | 0.2% | 2% | |
| 260 | 0.1% | 2% | |
| 261 | 0.2% | 1.4% | |
| 262 | 0% | 1.2% | |
| 263 | 0.3% | 1.1% | |
| 264 | 0.3% | 0.8% | |
| 265 | 0.3% | 0.6% | |
| 266 | 0% | 0.2% | |
| 267 | 0% | 0.2% | |
| 268 | 0% | 0.2% | |
| 269 | 0.1% | 0.2% | |
| 270 | 0% | 0.1% | |
| 271 | 0% | 0.1% | |
| 272 | 0% | 0.1% | |
| 273 | 0% | 0.1% | |
| 274 | 0% | 0% | Last Result | 
Labour Party – Plaid Cymru

| Number of Seats | Probability | Accumulated | Special Marks | 
|---|---|---|---|
| 183 | 0% | 100% | |
| 184 | 0% | 99.9% | |
| 185 | 0% | 99.9% | |
| 186 | 0.2% | 99.9% | |
| 187 | 0% | 99.8% | |
| 188 | 0% | 99.8% | |
| 189 | 0.3% | 99.7% | |
| 190 | 0.5% | 99.4% | |
| 191 | 0.9% | 98.9% | |
| 192 | 0.1% | 98% | |
| 193 | 0.1% | 98% | |
| 194 | 0.4% | 98% | |
| 195 | 0.2% | 97% | |
| 196 | 0.6% | 97% | |
| 197 | 0.1% | 97% | |
| 198 | 3% | 97% | |
| 199 | 0.2% | 94% | |
| 200 | 7% | 94% | |
| 201 | 0.1% | 87% | |
| 202 | 1.2% | 87% | |
| 203 | 0.1% | 86% | |
| 204 | 0.3% | 86% | |
| 205 | 2% | 85% | |
| 206 | 4% | 83% | |
| 207 | 3% | 80% | |
| 208 | 0.9% | 77% | |
| 209 | 4% | 76% | |
| 210 | 14% | 73% | |
| 211 | 2% | 59% | |
| 212 | 5% | 57% | |
| 213 | 2% | 52% | Median | 
| 214 | 3% | 50% | |
| 215 | 0.6% | 47% | |
| 216 | 0.2% | 46% | |
| 217 | 5% | 46% | |
| 218 | 1.2% | 41% | |
| 219 | 0.7% | 40% | |
| 220 | 2% | 39% | |
| 221 | 6% | 37% | |
| 222 | 9% | 32% | |
| 223 | 0.2% | 23% | |
| 224 | 0.1% | 23% | |
| 225 | 0.2% | 23% | |
| 226 | 5% | 23% | |
| 227 | 3% | 17% | |
| 228 | 5% | 14% | |
| 229 | 0.9% | 10% | |
| 230 | 3% | 9% | |
| 231 | 0.3% | 6% | |
| 232 | 1.4% | 5% | |
| 233 | 0.5% | 4% | |
| 234 | 0.2% | 3% | |
| 235 | 0.1% | 3% | |
| 236 | 1.3% | 3% | |
| 237 | 0.5% | 2% | |
| 238 | 0.4% | 1.2% | |
| 239 | 0.2% | 0.8% | |
| 240 | 0.1% | 0.6% | |
| 241 | 0.3% | 0.5% | |
| 242 | 0% | 0.2% | |
| 243 | 0% | 0.2% | |
| 244 | 0% | 0.1% | |
| 245 | 0% | 0.1% | |
| 246 | 0% | 0.1% | |
| 247 | 0% | 0.1% | |
| 248 | 0% | 0.1% | |
| 249 | 0% | 0.1% | |
| 250 | 0% | 0.1% | |
| 251 | 0% | 0.1% | |
| 252 | 0% | 0% | |
| 253 | 0% | 0% | |
| 254 | 0% | 0% | |
| 255 | 0% | 0% | |
| 256 | 0% | 0% | |
| 257 | 0% | 0% | |
| 258 | 0% | 0% | |
| 259 | 0% | 0% | |
| 260 | 0% | 0% | |
| 261 | 0% | 0% | |
| 262 | 0% | 0% | |
| 263 | 0% | 0% | |
| 264 | 0% | 0% | |
| 265 | 0% | 0% | |
| 266 | 0% | 0% | Last Result | 
Labour Party

| Number of Seats | Probability | Accumulated | Special Marks | 
|---|---|---|---|
| 178 | 0.2% | 100% | |
| 179 | 0.1% | 99.8% | |
| 180 | 0% | 99.7% | |
| 181 | 0.2% | 99.7% | |
| 182 | 0.1% | 99.5% | |
| 183 | 0.3% | 99.4% | |
| 184 | 0.4% | 99.1% | |
| 185 | 0.2% | 98.8% | |
| 186 | 0.9% | 98.5% | |
| 187 | 0.1% | 98% | |
| 188 | 0.5% | 98% | |
| 189 | 0.2% | 97% | |
| 190 | 1.2% | 97% | |
| 191 | 0.5% | 96% | |
| 192 | 7% | 95% | |
| 193 | 1.4% | 88% | |
| 194 | 0.5% | 87% | |
| 195 | 0.1% | 87% | |
| 196 | 0.4% | 86% | |
| 197 | 2% | 86% | |
| 198 | 4% | 84% | |
| 199 | 3% | 80% | |
| 200 | 1.0% | 77% | |
| 201 | 2% | 76% | |
| 202 | 1.3% | 74% | |
| 203 | 0.7% | 73% | |
| 204 | 3% | 72% | |
| 205 | 12% | 69% | |
| 206 | 4% | 57% | |
| 207 | 4% | 53% | Median | 
| 208 | 2% | 49% | |
| 209 | 1.2% | 47% | |
| 210 | 0.8% | 46% | |
| 211 | 0.2% | 45% | |
| 212 | 4% | 45% | |
| 213 | 7% | 41% | |
| 214 | 0.2% | 34% | |
| 215 | 1.3% | 34% | |
| 216 | 9% | 33% | |
| 217 | 0.5% | 23% | |
| 218 | 5% | 23% | |
| 219 | 0.9% | 18% | |
| 220 | 0.9% | 17% | |
| 221 | 0.6% | 16% | |
| 222 | 2% | 15% | |
| 223 | 4% | 13% | |
| 224 | 1.2% | 9% | |
| 225 | 3% | 8% | |
| 226 | 0.2% | 5% | |
| 227 | 0.9% | 5% | |
| 228 | 0.4% | 4% | |
| 229 | 0.6% | 3% | |
| 230 | 0.1% | 3% | |
| 231 | 1.4% | 3% | |
| 232 | 0.1% | 1.1% | |
| 233 | 0.3% | 1.1% | |
| 234 | 0.2% | 0.8% | |
| 235 | 0.1% | 0.6% | |
| 236 | 0.2% | 0.4% | |
| 237 | 0.1% | 0.2% | |
| 238 | 0% | 0.1% | |
| 239 | 0% | 0.1% | |
| 240 | 0% | 0.1% | |
| 241 | 0% | 0.1% | |
| 242 | 0% | 0.1% | |
| 243 | 0% | 0.1% | |
| 244 | 0% | 0.1% | |
| 245 | 0% | 0.1% | |
| 246 | 0% | 0.1% | |
| 247 | 0% | 0% | |
| 248 | 0% | 0% | |
| 249 | 0% | 0% | |
| 250 | 0% | 0% | |
| 251 | 0% | 0% | |
| 252 | 0% | 0% | |
| 253 | 0% | 0% | |
| 254 | 0% | 0% | |
| 255 | 0% | 0% | |
| 256 | 0% | 0% | |
| 257 | 0% | 0% | |
| 258 | 0% | 0% | |
| 259 | 0% | 0% | |
| 260 | 0% | 0% | |
| 261 | 0% | 0% | |
| 262 | 0% | 0% | Last Result | 
Technical Information
Opinion Poll
- Polling firm: YouGov
 - Commissioner(s): The Times
 - Fieldwork period: 3–4 March 2019
 
Calculations
- Sample size: 2172
 - Simulations done: 131,072
 - Error estimate: 1.23%