Opinion Poll by Norstat, 31 May–1 June May 2017
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 |
36.9% |
42.8% |
37.1–41.0% |
36.5–41.5% |
36.0–42.0% |
35.1–43.0% |
| Labour Party |
30.4% |
38.5% |
33.2–37.0% |
32.6–37.6% |
32.2–38.0% |
31.3–39.0% |
| Liberal Democrats |
7.9% |
8.8% |
7.0–9.2% |
6.7–9.5% |
6.5–9.8% |
6.0–10.4% |
| UK Independence Party |
12.6% |
6.6% |
5.2–7.1% |
4.9–7.4% |
4.7–7.7% |
4.3–8.2% |
| Green Party |
3.8% |
3.3% |
2.4–3.8% |
2.2–4.0% |
2.1–4.2% |
1.8–4.6% |
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
Conservative Party
| Number of Seats |
Probability |
Accumulated |
| 267 |
0% |
100% |
| 268 |
0% |
99.9% |
| 269 |
0% |
99.9% |
| 270 |
0% |
99.9% |
| 271 |
0% |
99.9% |
| 272 |
0% |
99.8% |
| 273 |
0% |
99.8% |
| 274 |
0.1% |
99.8% |
| 275 |
0% |
99.7% |
| 276 |
0.1% |
99.7% |
| 277 |
0.1% |
99.6% |
| 278 |
0.1% |
99.5% |
| 279 |
0.1% |
99.5% |
| 280 |
0.1% |
99.4% |
| 281 |
0.1% |
99.3% |
| 282 |
0.1% |
99.2% |
| 283 |
0.1% |
99.1% |
| 284 |
0.1% |
99.0% |
| 285 |
0.1% |
98.9% |
| 286 |
0.2% |
98.8% |
| 287 |
0.3% |
98.6% |
| 288 |
0.2% |
98% |
| 289 |
0.2% |
98% |
| 290 |
0.2% |
98% |
| 291 |
0.2% |
98% |
| 292 |
0.3% |
98% |
| 293 |
0.2% |
97% |
| 294 |
0.3% |
97% |
| 295 |
0.5% |
97% |
| 296 |
0.6% |
96% |
| 297 |
0.6% |
96% |
| 298 |
0.5% |
95% |
| 299 |
0.5% |
95% |
| 300 |
0.6% |
94% |
| 301 |
1.4% |
94% |
| 302 |
0.7% |
92% |
| 303 |
1.0% |
91% |
| 304 |
1.2% |
90% |
| 305 |
2% |
89% |
| 306 |
1.4% |
88% |
| 307 |
2% |
86% |
| 308 |
2% |
84% |
| 309 |
2% |
82% |
| 310 |
2% |
80% |
| 311 |
3% |
78% |
| 312 |
4% |
75% |
| 313 |
5% |
71% |
| 314 |
4% |
66% |
| 315 |
3% |
62% |
| 316 |
3% |
59% |
| 317 |
3% |
56% |
| 318 |
8% |
54% |
| 319 |
4% |
46% |
| 320 |
6% |
43% |
| 321 |
5% |
37% |
| 322 |
3% |
32% |
| 323 |
2% |
29% |
| 324 |
2% |
27% |
| 325 |
1.5% |
25% |
| 326 |
1.3% |
24% |
| 327 |
2% |
22% |
| 328 |
1.3% |
20% |
| 329 |
2% |
19% |
| 330 |
2% |
17% |
| 331 |
1.1% |
15% |
| 332 |
2% |
14% |
| 333 |
2% |
13% |
| 334 |
1.2% |
11% |
| 335 |
1.1% |
10% |
| 336 |
1.1% |
9% |
| 337 |
0.9% |
8% |
| 338 |
0.6% |
7% |
| 339 |
1.0% |
6% |
| 340 |
0.5% |
5% |
| 341 |
0.9% |
5% |
| 342 |
0.4% |
4% |
| 343 |
0.5% |
3% |
| 344 |
0.2% |
3% |
| 345 |
0.5% |
3% |
| 346 |
0.3% |
2% |
| 347 |
0.6% |
2% |
| 348 |
0.3% |
1.3% |
| 349 |
0.5% |
1.0% |
| 350 |
0.2% |
0.6% |
| 351 |
0.1% |
0.4% |
| 352 |
0.1% |
0.3% |
| 353 |
0% |
0.2% |
| 354 |
0.1% |
0.2% |
| 355 |
0% |
0.1% |
| 356 |
0% |
0.1% |
| 357 |
0% |
0.1% |
| 358 |
0% |
0% |
Labour Party
| Number of Seats |
Probability |
Accumulated |
| 209 |
0% |
100% |
| 210 |
0% |
99.9% |
| 211 |
0% |
99.9% |
| 212 |
0% |
99.9% |
| 213 |
0.1% |
99.9% |
| 214 |
0.1% |
99.8% |
| 215 |
0.1% |
99.7% |
| 216 |
0.1% |
99.7% |
| 217 |
0.3% |
99.6% |
| 218 |
0.5% |
99.3% |
| 219 |
0.5% |
98.7% |
| 220 |
0.5% |
98% |
| 221 |
0.4% |
98% |
| 222 |
0.4% |
97% |
| 223 |
0.3% |
97% |
| 224 |
0.3% |
97% |
| 225 |
0.7% |
96% |
| 226 |
1.0% |
96% |
| 227 |
0.8% |
95% |
| 228 |
0.7% |
94% |
| 229 |
0.6% |
93% |
| 230 |
1.0% |
92% |
| 231 |
1.5% |
91% |
| 232 |
1.4% |
90% |
| 233 |
1.1% |
89% |
| 234 |
1.4% |
87% |
| 235 |
2% |
86% |
| 236 |
2% |
84% |
| 237 |
2% |
83% |
| 238 |
2% |
81% |
| 239 |
2% |
79% |
| 240 |
2% |
78% |
| 241 |
2% |
76% |
| 242 |
1.3% |
74% |
| 243 |
2% |
73% |
| 244 |
3% |
71% |
| 245 |
4% |
69% |
| 246 |
5% |
64% |
| 247 |
7% |
60% |
| 248 |
7% |
52% |
| 249 |
5% |
46% |
| 250 |
3% |
41% |
| 251 |
2% |
38% |
| 252 |
3% |
36% |
| 253 |
5% |
33% |
| 254 |
5% |
28% |
| 255 |
4% |
23% |
| 256 |
3% |
20% |
| 257 |
2% |
17% |
| 258 |
1.4% |
14% |
| 259 |
1.4% |
13% |
| 260 |
1.5% |
12% |
| 261 |
1.2% |
10% |
| 262 |
1.0% |
9% |
| 263 |
0.9% |
8% |
| 264 |
0.7% |
7% |
| 265 |
0.9% |
6% |
| 266 |
0.9% |
6% |
| 267 |
0.6% |
5% |
| 268 |
0.2% |
4% |
| 269 |
0.3% |
4% |
| 270 |
0.5% |
4% |
| 271 |
0.5% |
3% |
| 272 |
0.5% |
3% |
| 273 |
0.2% |
2% |
| 274 |
0.1% |
2% |
| 275 |
0.1% |
2% |
| 276 |
0.1% |
2% |
| 277 |
0.1% |
2% |
| 278 |
0.2% |
2% |
| 279 |
0.2% |
1.4% |
| 280 |
0.3% |
1.1% |
| 281 |
0.2% |
0.9% |
| 282 |
0% |
0.7% |
| 283 |
0% |
0.7% |
| 284 |
0% |
0.6% |
| 285 |
0.1% |
0.6% |
| 286 |
0.1% |
0.5% |
| 287 |
0.1% |
0.4% |
| 288 |
0% |
0.3% |
| 289 |
0% |
0.3% |
| 290 |
0% |
0.2% |
| 291 |
0% |
0.2% |
| 292 |
0.1% |
0.2% |
| 293 |
0% |
0.1% |
| 294 |
0% |
0.1% |
| 295 |
0% |
0% |
Liberal Democrats
| Number of Seats |
Probability |
Accumulated |
| 0 |
0.1% |
100% |
| 1 |
0.6% |
99.9% |
| 2 |
4% |
99.4% |
| 3 |
10% |
95% |
| 4 |
5% |
85% |
| 5 |
8% |
80% |
| 6 |
8% |
72% |
| 7 |
17% |
65% |
| 8 |
19% |
48% |
| 9 |
5% |
29% |
| 10 |
4% |
24% |
| 11 |
3% |
21% |
| 12 |
2% |
18% |
| 13 |
4% |
15% |
| 14 |
2% |
11% |
| 15 |
3% |
9% |
| 16 |
1.4% |
6% |
| 17 |
2% |
5% |
| 18 |
1.1% |
3% |
| 19 |
0.8% |
2% |
| 20 |
0.2% |
1.1% |
| 21 |
0.4% |
0.9% |
| 22 |
0.1% |
0.5% |
| 23 |
0.1% |
0.4% |
| 24 |
0.1% |
0.3% |
| 25 |
0.1% |
0.2% |
| 26 |
0.1% |
0.1% |
| 27 |
0% |
0.1% |
| 28 |
0% |
0.1% |
| 29 |
0% |
0.1% |
| 30 |
0% |
0% |
UK Independence Party
| Number of Seats |
Probability |
Accumulated |
| 0 |
100% |
100% |
| 1 |
0% |
0% |
Green Party
| Number of Seats |
Probability |
Accumulated |
| 0 |
36% |
100% |
| 1 |
64% |
64% |
| 2 |
0% |
0% |
Coalitions

Confidence Intervals
| Coalition |
Last Result |
Median |
80% Confidence Interval |
90% Confidence Interval |
95% Confidence Interval |
99% Confidence Interval |
| Conservative Party – Liberal Democrats |
339 |
325 |
313–342 |
307–347 |
302–352 |
287–357 |
| Conservative Party |
331 |
318 |
304–335 |
298–340 |
292–345 |
278–350 |
| Labour Party – Liberal Democrats |
240 |
255 |
239–270 |
233–276 |
228–282 |
223–295 |
| Labour Party |
232 |
248 |
231–261 |
226–266 |
221–272 |
217–286 |
Conservative Party – Liberal Democrats
| Number of Seats |
Probability |
Accumulated |
| 279 |
0% |
100% |
| 280 |
0% |
99.9% |
| 281 |
0% |
99.9% |
| 282 |
0% |
99.8% |
| 283 |
0% |
99.8% |
| 284 |
0% |
99.8% |
| 285 |
0.1% |
99.7% |
| 286 |
0.1% |
99.7% |
| 287 |
0.1% |
99.6% |
| 288 |
0% |
99.5% |
| 289 |
0% |
99.4% |
| 290 |
0% |
99.4% |
| 291 |
0% |
99.4% |
| 292 |
0.1% |
99.3% |
| 293 |
0.3% |
99.2% |
| 294 |
0.2% |
98.9% |
| 295 |
0.2% |
98.7% |
| 296 |
0.2% |
98.5% |
| 297 |
0.1% |
98% |
| 298 |
0.1% |
98% |
| 299 |
0.1% |
98% |
| 300 |
0.1% |
98% |
| 301 |
0.3% |
98% |
| 302 |
0.5% |
98% |
| 303 |
0.4% |
97% |
| 304 |
0.3% |
97% |
| 305 |
0.3% |
96% |
| 306 |
0.4% |
96% |
| 307 |
0.8% |
96% |
| 308 |
1.0% |
95% |
| 309 |
0.5% |
94% |
| 310 |
0.8% |
93% |
| 311 |
1.0% |
93% |
| 312 |
1.2% |
92% |
| 313 |
1.1% |
90% |
| 314 |
2% |
89% |
| 315 |
2% |
88% |
| 316 |
2% |
86% |
| 317 |
2% |
85% |
| 318 |
4% |
82% |
| 319 |
4% |
78% |
| 320 |
4% |
74% |
| 321 |
3% |
69% |
| 322 |
2% |
66% |
| 323 |
4% |
64% |
| 324 |
3% |
59% |
| 325 |
6% |
56% |
| 326 |
6% |
50% |
| 327 |
5% |
44% |
| 328 |
4% |
38% |
| 329 |
4% |
35% |
| 330 |
2% |
30% |
| 331 |
2% |
28% |
| 332 |
2% |
27% |
| 333 |
2% |
25% |
| 334 |
2% |
23% |
| 335 |
2% |
21% |
| 336 |
1.3% |
20% |
| 337 |
2% |
18% |
| 338 |
2% |
17% |
| 339 |
1.2% |
15% |
| 340 |
1.2% |
13% |
| 341 |
2% |
12% |
| 342 |
1.4% |
11% |
| 343 |
1.0% |
9% |
| 344 |
0.9% |
8% |
| 345 |
0.7% |
7% |
| 346 |
0.8% |
7% |
| 347 |
1.0% |
6% |
| 348 |
0.5% |
5% |
| 349 |
0.5% |
4% |
| 350 |
0.4% |
4% |
| 351 |
0.5% |
3% |
| 352 |
0.3% |
3% |
| 353 |
0.5% |
2% |
| 354 |
0.4% |
2% |
| 355 |
0.6% |
2% |
| 356 |
0.3% |
0.9% |
| 357 |
0.2% |
0.7% |
| 358 |
0.1% |
0.5% |
| 359 |
0.1% |
0.3% |
| 360 |
0.1% |
0.2% |
| 361 |
0% |
0.2% |
| 362 |
0% |
0.1% |
| 363 |
0% |
0.1% |
| 364 |
0% |
0.1% |
| 365 |
0% |
0.1% |
| 366 |
0% |
0% |
Conservative Party
| Number of Seats |
Probability |
Accumulated |
| 267 |
0% |
100% |
| 268 |
0% |
99.9% |
| 269 |
0% |
99.9% |
| 270 |
0% |
99.9% |
| 271 |
0% |
99.9% |
| 272 |
0% |
99.8% |
| 273 |
0% |
99.8% |
| 274 |
0.1% |
99.8% |
| 275 |
0% |
99.7% |
| 276 |
0.1% |
99.7% |
| 277 |
0.1% |
99.6% |
| 278 |
0.1% |
99.5% |
| 279 |
0.1% |
99.5% |
| 280 |
0.1% |
99.4% |
| 281 |
0.1% |
99.3% |
| 282 |
0.1% |
99.2% |
| 283 |
0.1% |
99.1% |
| 284 |
0.1% |
99.0% |
| 285 |
0.1% |
98.9% |
| 286 |
0.2% |
98.8% |
| 287 |
0.3% |
98.6% |
| 288 |
0.2% |
98% |
| 289 |
0.2% |
98% |
| 290 |
0.2% |
98% |
| 291 |
0.2% |
98% |
| 292 |
0.3% |
98% |
| 293 |
0.2% |
97% |
| 294 |
0.3% |
97% |
| 295 |
0.5% |
97% |
| 296 |
0.6% |
96% |
| 297 |
0.6% |
96% |
| 298 |
0.5% |
95% |
| 299 |
0.5% |
95% |
| 300 |
0.6% |
94% |
| 301 |
1.4% |
94% |
| 302 |
0.7% |
92% |
| 303 |
1.0% |
91% |
| 304 |
1.2% |
90% |
| 305 |
2% |
89% |
| 306 |
1.4% |
88% |
| 307 |
2% |
86% |
| 308 |
2% |
84% |
| 309 |
2% |
82% |
| 310 |
2% |
80% |
| 311 |
3% |
78% |
| 312 |
4% |
75% |
| 313 |
5% |
71% |
| 314 |
4% |
66% |
| 315 |
3% |
62% |
| 316 |
3% |
59% |
| 317 |
3% |
56% |
| 318 |
8% |
54% |
| 319 |
4% |
46% |
| 320 |
6% |
43% |
| 321 |
5% |
37% |
| 322 |
3% |
32% |
| 323 |
2% |
29% |
| 324 |
2% |
27% |
| 325 |
1.5% |
25% |
| 326 |
1.3% |
24% |
| 327 |
2% |
22% |
| 328 |
1.3% |
20% |
| 329 |
2% |
19% |
| 330 |
2% |
17% |
| 331 |
1.1% |
15% |
| 332 |
2% |
14% |
| 333 |
2% |
13% |
| 334 |
1.2% |
11% |
| 335 |
1.1% |
10% |
| 336 |
1.1% |
9% |
| 337 |
0.9% |
8% |
| 338 |
0.6% |
7% |
| 339 |
1.0% |
6% |
| 340 |
0.5% |
5% |
| 341 |
0.9% |
5% |
| 342 |
0.4% |
4% |
| 343 |
0.5% |
3% |
| 344 |
0.2% |
3% |
| 345 |
0.5% |
3% |
| 346 |
0.3% |
2% |
| 347 |
0.6% |
2% |
| 348 |
0.3% |
1.3% |
| 349 |
0.5% |
1.0% |
| 350 |
0.2% |
0.6% |
| 351 |
0.1% |
0.4% |
| 352 |
0.1% |
0.3% |
| 353 |
0% |
0.2% |
| 354 |
0.1% |
0.2% |
| 355 |
0% |
0.1% |
| 356 |
0% |
0.1% |
| 357 |
0% |
0.1% |
| 358 |
0% |
0% |
Labour Party – Liberal Democrats
| Number of Seats |
Probability |
Accumulated |
| 216 |
0% |
100% |
| 217 |
0% |
99.9% |
| 218 |
0% |
99.9% |
| 219 |
0.1% |
99.9% |
| 220 |
0.1% |
99.8% |
| 221 |
0.1% |
99.8% |
| 222 |
0.2% |
99.7% |
| 223 |
0.2% |
99.6% |
| 224 |
0.4% |
99.4% |
| 225 |
0.3% |
99.0% |
| 226 |
0.5% |
98.7% |
| 227 |
0.4% |
98% |
| 228 |
0.4% |
98% |
| 229 |
0.3% |
97% |
| 230 |
0.5% |
97% |
| 231 |
0.5% |
97% |
| 232 |
0.7% |
96% |
| 233 |
0.6% |
95% |
| 234 |
0.9% |
95% |
| 235 |
0.7% |
94% |
| 236 |
1.0% |
93% |
| 237 |
0.9% |
92% |
| 238 |
1.0% |
91% |
| 239 |
1.3% |
90% |
| 240 |
1.5% |
89% |
| 241 |
1.4% |
88% |
| 242 |
1.2% |
86% |
| 243 |
2% |
85% |
| 244 |
2% |
83% |
| 245 |
1.4% |
82% |
| 246 |
2% |
80% |
| 247 |
2% |
78% |
| 248 |
2% |
77% |
| 249 |
2% |
75% |
| 250 |
2% |
73% |
| 251 |
3% |
71% |
| 252 |
5% |
68% |
| 253 |
4% |
64% |
| 254 |
4% |
59% |
| 255 |
6% |
56% |
| 256 |
4% |
49% |
| 257 |
3% |
45% |
| 258 |
3% |
42% |
| 259 |
3% |
39% |
| 260 |
5% |
37% |
| 261 |
4% |
32% |
| 262 |
4% |
28% |
| 263 |
3% |
24% |
| 264 |
2% |
22% |
| 265 |
2% |
19% |
| 266 |
2% |
17% |
| 267 |
2% |
15% |
| 268 |
2% |
14% |
| 269 |
2% |
12% |
| 270 |
1.1% |
10% |
| 271 |
0.9% |
9% |
| 272 |
1.1% |
9% |
| 273 |
0.9% |
7% |
| 274 |
0.7% |
6% |
| 275 |
0.6% |
6% |
| 276 |
0.4% |
5% |
| 277 |
0.6% |
5% |
| 278 |
0.6% |
4% |
| 279 |
0.4% |
4% |
| 280 |
0.3% |
3% |
| 281 |
0.3% |
3% |
| 282 |
0.3% |
3% |
| 283 |
0.2% |
2% |
| 284 |
0.2% |
2% |
| 285 |
0.2% |
2% |
| 286 |
0.2% |
2% |
| 287 |
0.2% |
2% |
| 288 |
0.1% |
1.3% |
| 289 |
0.1% |
1.2% |
| 290 |
0.1% |
1.1% |
| 291 |
0.1% |
1.0% |
| 292 |
0.1% |
0.9% |
| 293 |
0.1% |
0.8% |
| 294 |
0.1% |
0.7% |
| 295 |
0.1% |
0.6% |
| 296 |
0.1% |
0.5% |
| 297 |
0.1% |
0.4% |
| 298 |
0.1% |
0.4% |
| 299 |
0.1% |
0.3% |
| 300 |
0% |
0.3% |
| 301 |
0% |
0.2% |
| 302 |
0% |
0.2% |
| 303 |
0% |
0.2% |
| 304 |
0% |
0.1% |
| 305 |
0% |
0.1% |
| 306 |
0% |
0.1% |
| 307 |
0% |
0.1% |
| 308 |
0% |
0% |
Labour Party
| Number of Seats |
Probability |
Accumulated |
| 209 |
0% |
100% |
| 210 |
0% |
99.9% |
| 211 |
0% |
99.9% |
| 212 |
0% |
99.9% |
| 213 |
0.1% |
99.9% |
| 214 |
0.1% |
99.8% |
| 215 |
0.1% |
99.7% |
| 216 |
0.1% |
99.7% |
| 217 |
0.3% |
99.6% |
| 218 |
0.5% |
99.3% |
| 219 |
0.5% |
98.7% |
| 220 |
0.5% |
98% |
| 221 |
0.4% |
98% |
| 222 |
0.4% |
97% |
| 223 |
0.3% |
97% |
| 224 |
0.3% |
97% |
| 225 |
0.7% |
96% |
| 226 |
1.0% |
96% |
| 227 |
0.8% |
95% |
| 228 |
0.7% |
94% |
| 229 |
0.6% |
93% |
| 230 |
1.0% |
92% |
| 231 |
1.5% |
91% |
| 232 |
1.4% |
90% |
| 233 |
1.1% |
89% |
| 234 |
1.4% |
87% |
| 235 |
2% |
86% |
| 236 |
2% |
84% |
| 237 |
2% |
83% |
| 238 |
2% |
81% |
| 239 |
2% |
79% |
| 240 |
2% |
78% |
| 241 |
2% |
76% |
| 242 |
1.3% |
74% |
| 243 |
2% |
73% |
| 244 |
3% |
71% |
| 245 |
4% |
69% |
| 246 |
5% |
64% |
| 247 |
7% |
60% |
| 248 |
7% |
52% |
| 249 |
5% |
46% |
| 250 |
3% |
41% |
| 251 |
2% |
38% |
| 252 |
3% |
36% |
| 253 |
5% |
33% |
| 254 |
5% |
28% |
| 255 |
4% |
23% |
| 256 |
3% |
20% |
| 257 |
2% |
17% |
| 258 |
1.4% |
14% |
| 259 |
1.4% |
13% |
| 260 |
1.5% |
12% |
| 261 |
1.2% |
10% |
| 262 |
1.0% |
9% |
| 263 |
0.9% |
8% |
| 264 |
0.7% |
7% |
| 265 |
0.9% |
6% |
| 266 |
0.9% |
6% |
| 267 |
0.6% |
5% |
| 268 |
0.2% |
4% |
| 269 |
0.3% |
4% |
| 270 |
0.5% |
4% |
| 271 |
0.5% |
3% |
| 272 |
0.5% |
3% |
| 273 |
0.2% |
2% |
| 274 |
0.1% |
2% |
| 275 |
0.1% |
2% |
| 276 |
0.1% |
2% |
| 277 |
0.1% |
2% |
| 278 |
0.2% |
2% |
| 279 |
0.2% |
1.4% |
| 280 |
0.3% |
1.1% |
| 281 |
0.2% |
0.9% |
| 282 |
0% |
0.7% |
| 283 |
0% |
0.7% |
| 284 |
0% |
0.6% |
| 285 |
0.1% |
0.6% |
| 286 |
0.1% |
0.5% |
| 287 |
0.1% |
0.4% |
| 288 |
0% |
0.3% |
| 289 |
0% |
0.3% |
| 290 |
0% |
0.2% |
| 291 |
0% |
0.2% |
| 292 |
0.1% |
0.2% |
| 293 |
0% |
0.1% |
| 294 |
0% |
0.1% |
| 295 |
0% |
0% |
Opinion Poll
- Pollster: Norstat
- Media: —
- Fieldwork period: 31 May–1 June May 2017
Calculations
- Sample size: 922
- Simulations done: 4,194,304
- Error estimate: 0.18%