Southend-On-Sea's 2026 population is now estimated at 325,330. In 1950, the population of Southend-On-Sea was 265,310. Southend-On-Sea has grown by 2,295 in the last year, which represents a 0.71% annual change. These population estimates and projections come from the latest revision of the UN World Urbanization Prospects . These estimates represent the Urban agglomeration of Southend-On-Sea, which typically includes Southend-On-Sea's population in addition to adjacent suburban areas.
| City | 2026 Pop. ↓ | Growth |
|---|---|---|
| London | 9,927,020 | 0.88% |
| Manchester | 2,853,370 | 0.73% |
| Birmingham | 2,724,410 | 0.73% |
| Glasgow | 1,730,280 | 0.66% |
| Southampton | 974,131 | 0.76% |
| Liverpool | 935,328 | 0.68% |
| Newcastle upon Tyne | 839,947 | 0.68% |
| Nottingham | 825,506 | 0.75% |
| Sheffield | 762,277 | 0.73% |
| Bristol | 725,939 | 0.82% |
| Belfast | 656,593 | 0.71% |
| Brighton | 637,322 | 0.77% |
| Leicester | 579,755 | 0.77% |
| Edinburgh | 568,163 | 0.82% |
| Bournemouth | 530,872 | 0.76% |
| Leeds | 516,298 | 1.01% |
| Cardiff | 498,999 | 0.73% |
| Coventry | 458,904 | 0.95% |
| Middlesbrough | 400,118 | 0.65% |
| Stoke-on-Trent | 399,450 | 0.66% |
| Bradford | 368,485 | 1.01% |
| Reading | 358,252 | 0.75% |
| Sunderland | 351,353 | 0.63% |
| Preston | 340,779 | 0.69% |
| Birkenhead | 338,036 | 0.61% |
| Kingston upon Hull | 330,607 | 0.64% |
| Newport | 326,945 | 0.66% |
| Swansea | 322,374 | 0.67% |
| Derby | 264,430 | 1% |
| Portsmouth | 248,748 | 1% |
| Plymouth | 240,297 | 1% |
| Wolverhampton | 221,754 | 1.01% |
| Aberdeen | 212,300 | 1% |
| York | 210,620 | 1.01% |
| Norwich | 199,245 | 1.01% |
| Peterborough | 179,349 | 1.01% |
| Gloucester | 163,212 | 1.01% |
| Oxford | 161,662 | 1% |
| Cambridge | 149,155 | 1% |
| Blackpool | 145,007 | 1% |
| Exeter | 127,709 | 1.01% |
| Chelmsford | 119,468 | 1.01% |
| Lincoln | 107,434 | 1.01% |
| Bath | 106,009 | 1.01% |
| St Albans | 88,448 | 1.01% |
| Chester | 87,881 | 1% |
| Paisley | 77,250 | 1% |
| Carlisle | 74,536 | 1% |
| Canterbury | 64,495 | 1.02% |
| Scarborough | 61,866 | 1% |
| Dunfermline | 54,640 | 1.01% |
| Torquay | 51,320 | 1% |
| Winchester | 48,818 | 1.01% |
| Inverness | 47,060 | 1% |
| Salisbury | 46,332 | 1% |
| Stirling | 37,670 | 1% |
| Dumfries | 33,290 | 1% |
| Chichester | 31,881 | 1.01% |
| Elgin | 24,080 | 0.99% |
| Sudbury | 23,835 | 1.01% |