The following table shows all House of Representatives electorates to be contested at the 2013 federal election, ordered according to two-party-preferred margin.
| Labor Seats | Coalition Seats | ||
| Seat | Margin | Seat | Margin |
| Corangamite (VIC) | ALP 0.3% | Boothby (SA) | LIB 0.6% |
| Deakin (VIC) | ALP 0.6% | Hasluck (WA) | LIB 0.6% |
| Greenway (NSW) | ALP 0.9% | Aston (VIC) | LIB 0.7% |
| Robertson (NSW) | ALP 1.0% | Dunkley (VIC) | LIB 1.0% |
| Lindsay (NSW) | ALP 1.1% | Brisbane (QLD) | LNP 1.1% |
| Moreton (QLD) | ALP 1.1% | Macquarie (NSW) | LIB 1.3% |
| Banks (NSW) | ALP 1.5% | Forde (QLD) | LNP 1.6% |
| La Trobe (VIC) | ALP 1.7% | Solomon (NT) | CLP 1.8% |
| Petrie (QLD) | ALP 2.5% | Casey (VIC) | LIB 1.9% |
| Reid (NSW) | ALP 2.7% | Longman (QLD) | LNP 1.9% |
| Lilley (QLD) | ALP 3.2% | Herbert (QLD) | LNP 2.2% |
| Brand (WA) | ALP 3.3% | Canning (WA) | LIB 2.2% |
| Capricornia (QLD) | ALP 3.7% | Dawson (QLD) | LNP 2.4% |
| Lingiari (NT) | ALP 3.7% | Swan (WA) | LIB 2.5% |
| Page (NSW) | ALP 4.2% | Bonner (QLD) | LNP 2.8% |
| Grayndler (NSW) | ALP vs GRN 4.2% | Macarthur (NSW) | LIB 3.0% |
| Eden-Monaro (NSW) | ALP 4.2% | Bennelong (NSW) | LIB 3.1% |
| Blair (QLD) | ALP 4.2% | Flynn (QLD) | LNP 3.6% |
| Parramatta (NSW) | ALP 4.4% | Sturt (SA) | LIB 3.6% |
| Dobell (NSW) | ALP 5.1% | Fisher (QLD) | LNP 4.1% |
| Kingsford Smith (NSW) | ALP 5.2% | McMillan (QLD) | LIB 4.2% |
| Rankin (QLD) | ALP 5.4% | Leichhardt (QLD) | LNP 4.6% |
| Fremantle (WA) | ALP 5.7% | Dickson (QLD) | LNP 5.1% |
| Oxley (QLD) | ALP 5.8% | Hughes (NSW) | LIB 5.2% |
| Chisholm (VIC) | ALP 5.8% | Gilmore (NSW) | LIB 5.3% |
| Perth (WA) | ALP 5.9% | Paterson (NSW) | LIB 5.3% |
| Hindmarsh (SA) | ALP 6.1% | Higgins (VIC) | LIB 5.4% |
| Bass (TAS) | ALP 6.7% | Stirling (WA) | LIB 5.6% |
| Werriwa (NSW) | ALP 6.8% | Wannon (VIC) | LIB 5.7% |
| Barton (NSW) | ALP 6.9% | Goldstein (VIC) | LIB 6.0% |
| Richmond (NSW) | ALP 7.0% | Cowan (WA) | LIB 6.3% |
| Braddon (TAS) | ALP 7.5% | Fairfax (QLD) | LNP 7.0% |
| Adelaide (SA) | ALP 7.5% | Ryan (QLD) | LNP 7.2% |
| Batman (VIC) | ALP vs GRN 7.5% | Mayo (SA) | LIB 7.3% |
| Bruce (VIC) | ALP 7.7% | Kooyong (VIC) | LIB 7.5% |
| McMahon (NSW) | ALP 7.8% | Menzies (VIC) | LIB 8.7% |
| Melbourne Ports (VIC) | ALP 7.9% | Hume (NSW) | LIB 8.7% |
| Griffith (QLD) | ALP 8.5% | Forrest (WA) | LIB 8.7% |
| Fowler (NSW) | ALP 8.8% | Pearce (WA) | LIB 8.9% |
| Watson (NSW) | ALP 9.1% | Indi (VIC) | LIB 9.0% |
| McEwen (VIC) | ALP 9.2% | Flinders (VIC) | LIB 9.1% |
| Canberra (ACT) | ALP 9.2% | Cowper (NSW) | NAT 9.3% |
| Bendigo (VIC) | ALP 9.4% | Wright (QLD) | LNP 10.2% |
| Isaacs (VIC) | ALP 10.4% | McPherson (QLD) | LNP 10.3% |
| Wakefield (SA) | ALP 10.5% | Hinkler (QLD) | LNP 10.4% |
| Franklin (TAS) | ALP 10.8% | Bowman (QLD) | LNP 10.4% |
| Jagajaga (VIC) | ALP 11.2% | Calare (NSW) | NAT 10.7% |
| Ballarat (VIC) | ALP 11.7% | Grey (SA) | LIB 11.2% |
| Makin (SA) | ALP 12.0% | Moore (WA) | LIB 11.2% |
| Throsby (NSW) | ALP 12.1% | Gippsland (VIC) | NAT 11.5% |
| Blaxland (NSW) | ALP 12.2% | Tangney (WA) | LIB 12.3% |
| Lyons (TAS) | ALP 12.3% | Cook (NSW) | LIB 12.7% |
| Chifley (NSW) | ALP 12.3% | Warringah (NSW) | LIB 13.1% |
| Hunter (NSW) | ALP 12.5% | Barker (SA) | LIB 13.2% |
| Newcastle (NSW) | ALP 12.5% | Durack (WA) | LIB 13.7% |
| Charlton (NSW) | ALP 12.7% | North Sydney (NSW) | LIB 14.1% |
| Shortland (NSW) | ALP 12.9% | Fadden (QLD) | LNP 14.2% |
| Cunningham (NSW) | ALP 13.2% | Farrer (NSW) | LIB 14.5% |
| Corio (VIC) | ALP 13.5% | Wentworth (NSW) | LIB 14.9% |
| Holt (VIC) | ALP 14.0% | Wide Bay (QLD) | LNP 15.6% |
| Hotham (VIC) | ALP 14.0% | Mackellar (NSW) | LIB 15.7% |
| Fraser (ACT) | ALP 14.2% | Curtin (WA) | LIB 16.2% |
| Kingston (SA) | ALP 14.6% | Berowra (NSW) | LIB 16.2% |
| Sydney (NSW) | ALP 17.1% | Mitchell (NSW) | LIB 17.2% |
| Maribyrnong (VIC) | ALP 17.5% | Moncrieff (QLD) | LNP 17.5% |
| Calwell (VIC) | ALP 20.1% | Riverina (NSW) | NAT 18.2% |
| Scullin (VIC) | ALP 20.5% | Bradfield (NSW) | LIB 18.2% |
| Port Adelaide (SA) | ALP 20.9% | Groom (QLD) | LNP 18.5% |
| Lalor (VIC) | ALP 22.1% | Parkes (NSW) | NAT 18.9% |
| Wills (VIC) | ALP 23.5% | Murray (VIC) | LIB 19.6% |
| Gorton (VIC) | ALP 23.6% | Maranoa (QLD) | LNP 22.9% |
| Gellibrand (VIC) | ALP 24.1% | Mallee (VIC) | NAT 23.3% |
| Crossbench Seats | |||
| Denison (TAS) | IND vs ALP 1.2% | ||
| O’Connor (WA) | NWA vs LIB 3.6% | ||
| Melbourne (VIC) | GRN vs ALP 5.8% | ||
| Lyne (NSW) | IND vs NAT 12.7% | ||
| Kennedy (QLD) | KAP vs LNP 18.3% | ||
| New England (NSW) | IND vs NAT 21.5% | ||