2005 Japanese general election

11 September 2005
All 480 seats in the House of Representatives 241 seats needed for a majority
Turnout	67.51% (7.66pp; Const. votes) 67.46% (7.66pp; PR votes)
First party Second party Third party   Leader Junichiro Koizumi Katsuya Okada Takenori Kanzaki Party LDP Democratic Komeito Last election 241 seats 177 seats 34 seats Seats won 296 113 31 Seat change 59 64 3 Constituency vote 32,518,390 24,804,787 981,105 % and swing 47.77% (3.92pp) 36.44% (0.22pp) 1.44% (0.05pp) Regional vote 25,887,798 21,036,425 8,987,620 % and swing 38.18% (3.22pp) 31.02% (6.37pp) 13.25% (4.53pp)   Fourth party Fifth party   Leader Kazuo Shii Mizuho Fukushima Party Communist Social Democratic Last election 9 seats 6 seats Seats won 9 7 Seat change 1 Constituency vote 4,937,375 996,008 % and swing 7.25% (0.88pp) 1.46% (1.21pp) Regional vote 4,919,187 3,719,522 % and swing 7.25% (0.51pp) 5.49% (0.37pp)
Districts and PR districts, shaded according to winners' vote strength
Prime Minister before election Junichiro Koizumi LDP Elected Prime Minister Junichiro Koizumi LDP

General elections were held in Japan on 11 September 2005 for all 480 seats of the House of Representatives, the lower house of the Diet. Prime Minister Junichiro Koizumi called the election almost two years before the end of the term taken from the last elections in 2003.

The elections resulted in a landslide victory for Koizumi's LDP, with the party winning 296 seats, the largest share since World War II, and was the first time the LDP had won an overall majority in the House of Representatives since 1990.