Notional results for a UK general election on 5 May 2005 South West, England - Elections contested by Labour
Figures presented for Labour include those candidates certified by both the Labour and the Co-operative parties.
| Constituency | Electorate | Turnout | Votes | Vote share | Position |
| Bath | 60,023 | 69.1% | 5,974 | 14.4% | 3rd |
| Bournemouth East | 70,952 | 59.0% | 7,761 | 18.6% | 3rd |
| Bournemouth West | 67,955 | 53.9% | 8,384 | 22.9% | 3rd |
| Bridgwater and West Somerset | 79,643 | 64.0% | 13,059 | 25.6% | 2nd |
| Bristol East | 67,036 | 63.0% | 19,236 | 45.5% | 1st |
| Bristol North West | 71,024 | 68.8% | 18,649 | 38.2% | 1st |
| Bristol South | 74,520 | 59.0% | 21,364 | 48.6% | 1st |
| Bristol West | 70,819 | 63.6% | 16,452 | 36.5% | 2nd |
| Camborne and Redruth | 61,035 | 63.2% | 11,097 | 28.8% | 2nd |
| Central Devon | 67,121 | 69.8% | 5,429 | 11.6% | 3rd |
| Cheltenham | 76,704 | 62.5% | 5,652 | 11.8% | 3rd |
| Chippenham | 69,443 | 66.9% | 7,801 | 16.8% | 3rd |
| Christchurch | 66,535 | 70.3% | 7,297 | 15.6% | 3rd |
| Devizes | 65,563 | 65.3% | 9,590 | 22.4% | 2nd |
| East Devon | 70,105 | 68.0% | 8,691 | 18.2% | 3rd |
| Exeter | 77,049 | 64.3% | 20,887 | 42.1% | 1st |
| Filton and Bradley Stoke | 66,042 | 62.4% | 13,976 | 33.9% | 2nd |
| Forest of Dean | 67,241 | 70.8% | 17,425 | 36.6% | 2nd |
| Gloucester | 74,918 | 62.5% | 22,289 | 47.6% | 1st |
| Kingswood | 64,530 | 69.2% | 20,498 | 45.9% | 1st |
| Mid Dorset and North Poole | 62,730 | 72.1% | 4,547 | 10.1% | 3rd |
| Newton Abbot | 66,766 | 68.9% | 5,233 | 11.4% | 3rd |
| North Cornwall | 65,257 | 64.5% | 5,272 | 12.5% | 3rd |
| North Devon | 72,171 | 68.3% | 4,379 | 8.9% | 3rd |
| North Dorset | 70,632 | 69.3% | 4,709 | 9.6% | 3rd |
| North East Somerset | 64,934 | 71.5% | 17,937 | 38.6% | 2nd |
| North Somerset | 72,098 | 71.8% | 11,267 | 21.8% | 3rd |
| North Swindon | 70,415 | 60.8% | 19,311 | 45.1% | 1st |
| North Wiltshire | 64,580 | 69.5% | 5,365 | 11.9% | 3rd |
| Plymouth, Moor View | 68,574 | 58.3% | 17,739 | 44.4% | 1st |
| Plymouth, Sutton and Devonport | 72,505 | 55.5% | 16,370 | 40.7% | 1st |
| Poole | 65,891 | 64.0% | 9,561 | 22.7% | 3rd |
| Salisbury | 66,311 | 68.5% | 8,455 | 18.6% | 3rd |
| Somerton and Frome | 77,035 | 69.3% | 5,775 | 10.8% | 3rd |
| South Dorset | 70,002 | 69.4% | 20,231 | 41.6% | 1st |
| South East Cornwall | 68,856 | 67.7% | 4,873 | 10.5% | 3rd |
| South Swindon | 72,284 | 59.0% | 17,227 | 40.4% | 1st |
| South West Devon | 68,789 | 68.2% | 11,389 | 24.3% | 2nd |
| South West Wiltshire | 70,349 | 64.6% | 7,807 | 17.2% | 3rd |
| St Austell and Newquay | 70,872 | 64.9% | 6,335 | 13.8% | 3rd |
| St Ives | 64,459 | 67.8% | 5,473 | 12.5% | 3rd |
| Stroud | 76,677 | 70.1% | 21,592 | 40.2% | 1st |
| Taunton Deane | 81,767 | 69.3% | 6,844 | 12.1% | 3rd |
| Tewkesbury | 74,165 | 62.2% | 9,364 | 20.3% | 3rd |
| The Cotswolds | 75,035 | 67.2% | 9,392 | 18.6% | 3rd |
| Thornbury and Yate | 64,045 | 73.6% | 5,122 | 10.9% | 3rd |
| Tiverton and Honiton | 72,888 | 70.4% | 6,851 | 13.3% | 3rd |
| Torbay | 75,272 | 60.2% | 6,555 | 14.5% | 3rd |
| Torridge and West Devon | 71,448 | 71.2% | 5,363 | 10.5% | 3rd |
| Totnes | 67,039 | 69.7% | 5,674 | 12.1% | 3rd |
| Truro and Falmouth | 65,288 | 65.1% | 8,090 | 19.0% | 3rd |
| Wells | 78,234 | 67.7% | 8,288 | 15.6% | 3rd |
| West Dorset | 69,643 | 76.4% | 4,124 | 7.7% | 3rd |
| Weston-Super-Mare | 74,571 | 65.7% | 9,151 | 18.7% | 3rd |
| Yeovil | 79,306 | 63.9% | 5,346 | 10.6% | 3rd |
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
Professors Colin Rallings and Michael Thrasher, at The Elections Centre of the University of Exeter, 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.