Kanagawa 1st district

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Kanagawa 1st district is a single-member electoral district for Japan's House of Representatives. It covers central and southeastern Yokohama, specifically the Naka, Isogo and Kanazawa wards, where Yokohama city hall and the Kanagawa prefectural government building are located. As of December 1, 2020, 428,115 people were registered to vote in the district.

The district was created in 1994 during electoral reform. Before that, the area was part of larger multi-member districts, Kanagawa 1st and 4th. Since 1996, elections have been hotly contested between parties like the Liberal Democrats and the Democrats, with several notable lawmakers such as Jun Matsumoto (LDP), Ken’ichirō Satō (Democrat), and Masahiko Okabe (New Frontier Party). In 2009, Mieko Nakabayashi (Democratic Party) won the seat in a landslide, but Matsumoto regained it in 2012. In 2021, Matsumoto left the LDP and ran as an independent, losing to Gō Shinohara of the Constitutional Democratic Party, who is the current representative.