Notional results for a UK general election on 5 May 2005 Elections contested by British National Party
A notional general election to the 54th Parliament of the United Kingdom with an electorate of 40,611,844, having 24,814,623 valid votes.
| Constituency | Electorate | Turnout | Votes | Vote share | Position |
| Aldridge-Brownhills | 58,262 | 63.5% | 1,620 | 4.4% | 4th |
| Amber Valley | 68,668 | 64.0% | 1,243 | 2.8% | 4th |
| Ashton-under-Lyne | 66,822 | 51.5% | 2,051 | 6.0% | 4th |
| Barking | 76,437 | 48.2% | 5,997 | 16.3% | 3rd |
| Barnsley Central | 64,774 | 47.7% | 1,403 | 4.5% | 4th |
| Basildon and Billericay | 65,238 | 62.3% | 1,435 | 3.5% | 4th |
| Basingstoke | 69,334 | 61.0% | 821 | 1.9% | 6th |
| Batley and Spen | 73,601 | 60.8% | 2,668 | 6.0% | 4th |
| Bexleyheath and Crayford | 64,804 | 64.7% | 1,241 | 3.0% | 5th |
| Birmingham, Erdington | 66,455 | 48.4% | 1,512 | 4.7% | 4th |
| Birmingham, Hodge Hill | 74,339 | 55.7% | 1,445 | 3.5% | 5th |
| Birmingham, Northfield | 71,651 | 55.2% | 1,278 | 3.2% | 4th |
| Birmingham, Yardley | 71,986 | 54.5% | 1,523 | 3.9% | 5th |
| Blackburn | 71,763 | 57.7% | 2,239 | 5.4% | 4th |
| Blackpool South | 63,951 | 52.3% | 1,113 | 3.3% | 4th |
| Boston and Skegness | 73,240 | 58.9% | 1,025 | 2.4% | 5th |
| Bradford East | 67,827 | 54.1% | 2,061 | 5.6% | 4th |
| Bradford South | 65,884 | 53.4% | 2,862 | 8.1% | 4th |
| Bradford West | 65,280 | 56.0% | 2,525 | 6.9% | 4th |
| Broxbourne | 68,597 | 59.2% | 1,929 | 4.7% | 4th |
| Burnley | 65,458 | 59.6% | 4,003 | 10.3% | 5th |
| Burton | 73,385 | 60.5% | 1,840 | 4.1% | 4th |
| Bury North | 66,138 | 61.7% | 1,790 | 4.4% | 4th |
| Calder Valley | 72,174 | 66.0% | 1,887 | 4.0% | 4th |
| Charnwood | 72,011 | 66.3% | 1,737 | 3.6% | 4th |
| Cheadle | 72,103 | 68.7% | 421 | 0.8% | 5th |
| Colne Valley | 77,264 | 65.3% | 1,430 | 2.8% | 4th |
| Coventry North West | 69,628 | 60.1% | 1,556 | 3.7% | 4th |
| Crawley | 71,912 | 58.4% | 1,277 | 3.0% | 4th |
| Dagenham and Rainham | 71,497 | 56.8% | 1,789 | 4.4% | 4th |
| Denton and Reddish | 64,697 | 52.5% | 1,326 | 3.9% | 4th |
| Dewsbury | 75,974 | 59.3% | 5,066 | 11.2% | 4th |
| Doncaster Central | 72,587 | 52.0% | 1,239 | 3.3% | 5th |
| Doncaster North | 71,750 | 52.6% | 1,506 | 4.0% | 5th |
| Dudley North | 60,131 | 61.3% | 4,022 | 10.9% | 3rd |
| Dudley South | 60,043 | 60.2% | 1,841 | 5.1% | 4th |
| Easington | 62,372 | 51.8% | 1,042 | 3.2% | 4th |
| Elmet and Rothwell | 76,229 | 69.8% | 1,231 | 2.3% | 4th |
| Eltham | 65,329 | 58.5% | 979 | 2.6% | 5th |
| Enfield North | 66,014 | 60.3% | 1,004 | 2.5% | 4th |
| Epping Forest | 69,717 | 61.7% | 1,728 | 4.0% | 4th |
| Erewash | 69,170 | 62.6% | 1,319 | 3.0% | 5th |
| Erith and Thamesmead | 70,422 | 53.7% | 1,620 | 4.3% | 4th |
| Gateshead | 65,218 | 53.7% | 1,072 | 3.1% | 5th |
| Great Grimsby | 63,711 | 51.7% | 1,338 | 4.1% | 4th |
| Halifax | 65,179 | 61.0% | 2,627 | 6.6% | 4th |
| Haltemprice and Howden | 68,533 | 70.4% | 798 | 1.7% | 4th |
| Harrogate and Knaresborough | 73,815 | 66.7% | 466 | 0.9% | 5th |
| Havant | 67,853 | 60.5% | 562 | 1.4% | 6th |
| Hayes and Harlington | 66,794 | 55.3% | 830 | 2.2% | 4th |
| Hemsworth | 70,754 | 54.3% | 82 | 0.2% | 5th |
| Heywood and Middleton | 77,063 | 53.9% | 1,855 | 4.5% | 4th |
| Hornchurch and Upminster | 77,760 | 63.3% | 2,486 | 5.1% | 4th |
| Houghton and Sunderland South | 69,721 | 53.2% | 2,533 | 6.8% | 4th |
| Huddersfield | 62,462 | 56.6% | 1,036 | 2.9% | 5th |
| Hyndburn | 68,144 | 58.8% | 2,468 | 6.2% | 4th |
| Keighley | 66,986 | 69.1% | 4,240 | 9.2% | 4th |
| Kingston upon Hull East | 68,805 | 47.6% | 1,022 | 3.1% | 5th |
| Kingston upon Hull North | 60,930 | 46.1% | 766 | 2.7% | 5th |
| Knowsley | 77,977 | 53.8% | 872 | 2.1% | 4th |
| Leeds Central | 76,713 | 44.3% | 1,201 | 3.5% | 4th |
| Leeds West | 66,849 | 52.8% | 1,166 | 3.3% | 5th |
| Maidenhead | 69,802 | 70.3% | 704 | 1.4% | 4th |
| Makerfield | 74,344 | 49.7% | 1,221 | 3.3% | 5th |
| Middlesbrough | 65,979 | 48.7% | 819 | 2.6% | 4th |
| Middlesbrough South and East Cleveland | 71,851 | 60.9% | 1,099 | 2.5% | 4th |
| Morley and Outwood | 70,788 | 58.5% | 3,243 | 7.8% | 5th |
| Newcastle-under-Lyme | 68,325 | 58.2% | 1,390 | 3.5% | 5th |
| Normanton, Pontefract and Castleford | 79,310 | 53.3% | 1,681 | 4.0% | 4th |
| North Somerset | 72,098 | 71.8% | 633 | 1.2% | 6th |
| North Warwickshire | 69,616 | 62.9% | 1,910 | 4.4% | 4th |
| North West Leicestershire | 70,519 | 66.8% | 1,474 | 3.1% | 5th |
| Old Bexley and Sidcup | 64,878 | 65.2% | 1,227 | 2.9% | 5th |
| Oldham East and Saddleworth | 71,988 | 56.8% | 2,109 | 5.2% | 4th |
| Oldham West and Royton | 71,351 | 54.0% | 2,606 | 6.8% | 4th |
| Pendle | 64,590 | 63.7% | 2,547 | 6.2% | 4th |
| Penistone and Stocksbridge | 67,969 | 62.1% | 2,010 | 4.8% | 4th |
| Poole | 65,891 | 64.0% | 547 | 1.3% | 5th |
| Redcar | 67,004 | 58.0% | 985 | 2.5% | 5th |
| Rochdale | 75,018 | 57.2% | 1,773 | 4.1% | 4th |
| Romford | 68,425 | 61.9% | 1,088 | 2.6% | 4th |
| Rossendale and Darwen | 71,819 | 61.6% | 1,736 | 3.9% | 4th |
| Rotherham | 62,002 | 54.1% | 1,986 | 5.9% | 4th |
| Rother Valley | 70,370 | 57.7% | 2,020 | 5.0% | 4th |
| Sheffield, Brightside and Hillsborough | 66,476 | 50.0% | 1,537 | 4.6% | 4th |
| Sheffield Central | 60,400 | 55.0% | 539 | 1.6% | 7th |
| Sheffield, Hallam | 67,522 | 67.9% | 369 | 0.8% | 7th |
| Sheffield, Heeley | 65,461 | 57.7% | 1,314 | 3.5% | 5th |
| Sheffield South East | 66,798 | 54.7% | 1,477 | 4.0% | 5th |
| Shipley | 68,363 | 68.1% | 2,000 | 4.3% | 4th |
| Solihull | 75,042 | 67.4% | 1,752 | 3.5% | 4th |
| South Basildon and East Thurrock | 71,355 | 59.3% | 2,055 | 4.9% | 4th |
| South Derbyshire | 66,797 | 66.9% | 1,797 | 4.0% | 4th |
| South Leicestershire | 74,853 | 65.3% | 1,704 | 3.5% | 4th |
| Stalybridge and Hyde | 66,379 | 53.9% | 1,399 | 3.9% | 4th |
| Stockton North | 65,277 | 58.1% | 986 | 2.6% | 5th |
| Stoke-on-Trent Central | 59,039 | 48.7% | 2,178 | 7.6% | 4th |
| Stoke-on-Trent North | 70,605 | 50.9% | 2,132 | 5.9% | 4th |
| Stoke-on-Trent South | 67,726 | 54.2% | 3,305 | 9.0% | 4th |
| Sunderland Central | 73,128 | 50.7% | 1,136 | 3.1% | 5th |
| Swansea East | 57,502 | 53.6% | 770 | 2.5% | 5th |
| Thurrock | 75,538 | 54.5% | 2,526 | 6.1% | 4th |
| Uxbridge and South Ruislip | 68,017 | 58.6% | 763 | 1.9% | 5th |
| Wakefield | 68,333 | 61.4% | 2,395 | 5.7% | 4th |
| Walsall North | 63,629 | 52.2% | 1,992 | 6.0% | 4th |
| Walsall South | 63,508 | 60.0% | 1,776 | 4.7% | 5th |
| Warley | 61,200 | 57.2% | 1,761 | 5.0% | 4th |
| Wentworth and Dearne | 70,879 | 54.4% | 1,798 | 4.7% | 4th |
| West Bromwich East | 62,193 | 58.2% | 2,329 | 6.4% | 4th |
| West Bromwich West | 61,555 | 51.6% | 3,456 | 10.9% | 3rd |
| Weston-Super-Mare | 74,571 | 65.7% | 778 | 1.6% | 5th |
| Wokingham | 69,293 | 67.8% | 376 | 0.8% | 6th |
| Wolverhampton South West | 63,129 | 63.0% | 983 | 2.5% | 5th |
| Worcester | 71,993 | 64.4% | 980 | 2.1% | 5th |
| Wrexham | 48,016 | 63.3% | 919 | 3.0% | 5th |
Turnout as calculated by the House of Commons Library, is the total number of votes cast and not spoiled, divided by the size of the electorate.
Under section 13(b) of the Representation of the People Act 1985, a candidate gaining 5% or less of the vote share will forfeit their deposit.
Estimates of the 2005 general election result in new constituencies
Colin Rallings and Michael Thrasher, then at the University of Plymouth, produced estimates of the 2005 general election result as if the new constituencies recommended by the separate Parliamentary Boundary Commissions for England, Wales and Northern Ireland had then been in existence.
The Elections Centre, established by Professors Colin Rallings and Michael Thrasher, moved to the University of Exeter in 2003.