In the last pre-reform House of Representatives election of 1993, representatives included top-elected Iwao Matsuda for the Renewal Party, third-ranking Seiko Noda for the Liberal Democratic Party and fourth-ranking Socialist Kazō Watanabe.

These three representatives were the main contestants of the new single-member 1st district in the 1996 election.

In 2005, she was a postal privatization rebel, but defended the seat against "assassin" candidate Yukari Satō.

In the landslide Liberal Democratic defeat of 2009, Noda lost the seat to Democrat Masanao Shibahashi and only remained in the House via the Tōkai proportional block.

In the landslide Democratic defeat of 2012, Noda regained the district at low turnout.