| Constituency | Winning Party 2015 | Maj/lead over Labour | Swing Required % | Maj/lead over Labour % | Total Votes 2015 | Lab position. if not 2nd |
| Gower | Con: 1 | 27 | 0.03 | 0.06 | 42,758 | |
| Derby North | Con: 2 | 41 | 0.05 | 0.09 | 44,745 | |
| Croydon Central | Con: 3 | 165 | 0.16 | 0.31 | 52,941 | |
| Vale of Clwyd | Con: 4 | 237 | 0.34 | 0.67 | 35,261 | |
| Bury North | Con: 5 | 378 | 0.42 | 0.84 | 45,230 | |
| Morley & Outwood | Con: 6 | 422 | 0.44 | 0.87 | 48,250 | |
| Thurrock | Con: 7 | 536 | 0.54 | 1.08 | 49,564 | |
| Plymouth Sutton & Devonport | Con: 8 | 523 | 0.55 | 1.09 | 47,963 | |
| Brighton Kemptown | Con: 9 | 690 | 0.76 | 1.52 | 45,306 | |
| Bolton West | Con: 10 | 801 | 0.82 | 1.65 | 48,592 | |
| Weaver Vale | Con: 11 | 806 | 0.86 | 1.72 | 46,867 | |
| Telford | Con: 12 | 730 | 0.90 | 1.80 | 40,645 | |
| Bedford | Con: 13 | 1,097 | 1.19 | 2.38 | 46,086 | |
| Plymouth Moor View | Con: 14 | 1,026 | 1.20 | 2.41 | 42,606 | |
| Lincoln | Con: 15 | 1,443 | 1.54 | 3.08 | 46,852 | |
| Peterborough | Con: 16 | 1,925 | 2.04 | 4.09 | 47,075 | |
| Cardiff North | Con: 17 | 2,137 | 2.09 | 4.18 | 51,151 | |
| Sheffield Hallam | LD: 1 | 2,353 | 2.12 | 4.24 | 55,481 | |
| Corby | Con: 18 | 2,412 | 2.15 | 4.29 | 56,174 | |
| Waveney | Con: 19 | 2,408 | 2.31 | 4.61 | 52,196 | |
| Warrington South | Con: 20 | 2,750 | 2.32 | 4.63 | 59,353 | |
| Southampton Itchen | Con: 21 | 2,316 | 2.59 | 5.18 | 44,710 | |
| Keighley | Con: 22 | 3,053 | 3.11 | 6.22 | 49,123 | |
| Warwickshire North | Con: 23 | 2,973 | 3.14 | 6.28 | 47,377 | |
| Carlisle | Con: 24 | 2,774 | 3.26 | 6.51 | 42,587 | |
| Renfrewshire East | SNP: 1 | 3,718 | 3.28 | 6.55 | 56,730 | |
| Leeds North West | LD: 2 | 2,907 | 3.35 | 6.70 | 43,357 | |
| Halesowen & Rowley Regis | Con: 25 | 3,082 | 3.52 | 7.03 | 43,818 | |
| Crewe & Nantwich | Con: 26 | 3,620 | 3.63 | 7.26 | 49,896 | |
| Erewash | Con: 27 | 3,584 | 3.71 | 7.42 | 48,322 | |
| Hendon | Con: 28 | 3,724 | 3.75 | 7.50 | 49,630 | |
| Ipswich | Con: 29 | 3,733 | 3.83 | 7.67 | 48,694 | |
| Stroud | Con: 30 | 4,866 | 4.00 | 8.00 | 60,819 | |
| Broxtowe | Con: 31 | 4,287 | 4.01 | 8.02 | 53,440 | |
| Northampton North | Con: 32 | 3,245 | 4.12 | 8.23 | 39,411 | |
| Calder Valley | Con: 33 | 4,427 | 4.13 | 8.27 | 53,541 | |
| Blackpool North & Cleveleys | Con: 34 | 3,340 | 4.24 | 8.48 | 39,393 | |
| Pudsey | Con: 35 | 4,501 | 4.42 | 8.84 | 50,927 | |
| Sherwood | Con: 36 | 4,647 | 4.58 | 9.17 | 50,698 | |
| Amber Valley | Con: 37 | 4,205 | 4.60 | 9.20 | 45,717 | |
| Hastings & Rye | Con: 38 | 4,796 | 4.71 | 9.42 | 50,927 | |
| Colne Valley | Con: 39 | 5,378 | 4.73 | 9.47 | 56,800 | |
| Bristol North West | Con: 40 | 4,944 | 4.77 | 9.54 | 51,805 | |
| High Peak | Con: 41 | 4,894 | 4.82 | 9.64 | 50,789 | |
| Edinburgh North & Leith | SNP: 2 | 5,597 | 4.82 | 9.65 | 58,008 | |
| Harrow East | Con: 42 | 4,757 | 4.85 | 9.71 | 49,000 | |
| Stockton South | Con: 43 | 5,046 | 4.87 | 9.74 | 51,797 | |
| Northampton South | Con: 44 | 3,793 | 4.88 | 9.75 | 38,884 | |
| Norwich North | Con: 45 | 4,463 | 5.12 | 10.24 | 43,592 | |
| Stevenage | Con: 46 | 4,955 | 5.18 | 10.37 | 47,799 | |
| Enfield Southgate | Con: 47 | 4,753 | 5.19 | 10.38 | 45,812 | |
| Cannock Chase | Con: 48 | 4,923 | 5.23 | 10.45 | 47,099 | |
| Morecambe & Lunesdale | Con: 49 | 4,590 | 5.31 | 10.61 | 43,242 | |
| Nuneaton | Con: 50 | 4,882 | 5.34 | 10.67 | 45,749 | |
| Finchley & Golders Green | Con: 51 | 5,662 | 5.58 | 11.15 | 50,759 | |
| Dudley South | Con: 52 | 4,270 | 5.59 | 11.18 | 38,210 | |
| South Ribble | Con: 53 | 5,945 | 5.68 | 11.35 | 52,370 | |
| Worcester | Con: 54 | 5,646 | 5.68 | 11.35 | 49,723 | |
| East Lothian | SNP: 3 | 6,803 | 5.76 | 11.53 | 59,014 | |
| Rossendale & Darwen | Con: 55 | 5,654 | 5.77 | 11.53 | 49,024 | |
| Swindon South | Con: 56 | 5,785 | 5.87 | 11.74 | 49,263 | |
| Preseli Pembrokeshire | Con: 57 | 4,969 | 6.13 | 12.25 | 40,556 | |
| Pendle | Con: 58 | 5,453 | 6.13 | 12.27 | 44,448 | |
| Paisley & Renfrewshire South | SNP: 4 | 5,684 | 6.15 | 12.30 | 46,226 | |
| Portsmouth South | Con: 59 | 5,241 | 6.25 | 12.51 | 41,903 | 3rd |
| Dover | Con: 60 | 6,294 | 6.27 | 12.53 | 50,224 | |
| Reading East | Con: 61 | 6,520 | 6.46 | 12.91 | 50,494 | |
| Scarborough & Whitby | Con: 62 | 6,200 | 6.49 | 12.99 | 47,739 | |
| Warwick & Leamington | Con: 63 | 6,606 | 6.53 | 13.06 | 50,581 | |
| Aberconwy | Con: 64 | 3,999 | 6.63 | 13.26 | 30,148 | |
| Vale of Glamorgan | Con: 65 | 6,880 | 6.71 | 13.41 | 51,293 | |
| Crawley | Con: 66 | 6,526 | 6.72 | 13.44 | 48,550 | |
| Arfon | PC: 1 | 3,668 | 6.83 | 13.67 | 26,837 | |
| Reading West | Con: 67 | 6,650 | 6.87 | 13.74 | 48,404 | |
| Gloucester | Con: 68 | 7,251 | 6.90 | 13.79 | 52,575 | |
| Great Yarmouth | Con: 69 | 6,154 | 6.92 | 13.84 | 44,469 | |
| Carmarthen East & Dinefwr | PC: 2 | 5,599 | 7.11 | 14.21 | 39,399 | |
| Chipping Barnet | Con: 70 | 7,656 | 7.22 | 14.44 | 53,013 | |
| Stourbridge | Con: 71 | 6,694 | 7.27 | 14.54 | 46,029 | |
| Brighton Pavilion | Green: 1 | 7,967 | 7.29 | 14.57 | 54,676 | |
| Elmet & Rothwell | Con: 72 | 8,490 | 7.34 | 14.69 | 57,797 | |
| Milton Keynes South | Con: 73 | 8,742 | 7.41 | 14.81 | 59,019 | |
| Aberdeen South | SNP: 5 | 7,230 | 7.45 | 14.89 | 48,551 | |
| Carmarthen West & Pembrokeshire South | Con: 74 | 6,054 | 7.50 | 15.00 | 40,350 | |
| Camborne & Redruth | Con: 75 | 7,004 | 7.63 | 15.27 | 45,868 | |
| Battersea | Con: 76 | 7,938 | 7.78 | 15.56 | 51,031 | |
| Edinburgh South West | SNP: 6 | 8,135 | 7.88 | 15.76 | 51,602 | |
| Redditch | Con: 77 | 7,054 | 8.00 | 16.00 | 44,098 | |
| Dumfries & Galloway | SNP: 7 | 9,458 | 8.35 | 16.71 | 56,602 | 3rd |
| Gravesham | Con: 78 | 8,380 | 8.36 | 16.71 | 50,149 | |
| Milton Keynes North | Con: 79 | 9,753 | 8.45 | 16.91 | 57,692 | |
| Rutherglen & Hamilton West | SNP: 8 | 9,975 | 8.66 | 17.31 | 57,615 | |
| Thanet South | Con: 80 | 8,572 | 8.68 | 17.35 | 49,401 | 3rd |
| Watford | Con: 81 | 9,794 | 8.72 | 17.44 | 56,149 | |
| Cleethorpes | Con: 82 | 7,893 | 8.75 | 17.51 | 45,089 | |
| Southport | LD: 3 | 7,724 | 8.76 | 17.51 | 44,101 | 3rd |
| Ochil & Perthshire South | SNP: 9 | 10,168 | 8.79 | 17.57 | 57,871 | |
| Loughborough | Con: 83 | 9,183 | 8.83 | 17.65 | 52,020 | |
| Shrewsbury & Atcham | Con: 84 | 9,565 | 8.84 | 17.68 | 54,102 | |
| Clwyd West | Con: 85 | 6,730 | 8.85 | 17.70 | 38,028 | |
| Paisley & Renfrewshire North | SNP: 10 | 9,076 | 8.99 | 17.99 | 50,462 | |
| Basildon South & Thurrock East | Con: 86 | 8,295 | 9.10 | 18.19 | 45,593 | 3rd |
| Lanark & Hamilton East | SNP: 11 | 10,100 | 9.14 | 18.28 | 55,258 | |
| Canterbury | Con: 87 | 9,798 | 9.16 | 18.33 | 53,465 | |
| Dunfermline & Fife West | SNP: 12 | 10,352 | 9.26 | 18.52 | 55,890 | |
| Kingswood | Con: 88 | 9,006 | 9.36 | 18.71 | 48,125 | |
| Stafford | Con: 89 | 9,177 | 9.41 | 18.82 | 48,767 | |
| Kirkcaldy & Cowdenbeath | SNP: 13 | 9,974 | 9.43 | 18.86 | 52,892 | |
| Harlow | Con: 90 | 8,350 | 9.43 | 18.87 | 44,251 | |
| Shipley | Con: 91 | 9,624 | 9.52 | 19.04 | 50,542 | |
| Chingford & Woodford Green | Con: 92 | 8,386 | 9.57 | 19.14 | 43,804 | |
| Edinburgh East | SNP: 14 | 9,106 | 9.67 | 19.34 | 47,089 | |
| Glasgow Central | SNP: 15 | 7,662 | 9.74 | 19.49 | 39,318 | |
| Airdrie & Shotts | SNP: 16 | 8,779 | 9.91 | 19.82 | 44,286 |
Labour Target seats for UK General Election 2020
Collated by @AndyJSajs
