The constituency represents the entire population of
Saitama Prefecture. The district elects eight Councillors to six-year terms, four each at alternating elections held every three years. The district has 6,127,388 registered voters as of July 2025. •
Masakazu Sekiguchi (
Liberal Democratic Party (LDP), fifth term; term ends in 2028) • Sekiguchi has served as
President of the House of Councillors since November 2024 and sits as an independent as a result. •
Kiyoshi Ueda (
Democratic Party For the People (DPFP), second term; term ends in 2028) •
Makoto Nishida (
Komeito, fourth term; term ends in 2028) •
Mari Takagi (
Constitutional Democratic Party of Japan (CDP), first term; term ends in 2028) •
Toshiharu Furukawa (LDP, fourth term; term ends in 2031) •
Kumiko Ehara (DPFP, first term; term ends in 2031) •
Hiroto Kumagai (CDP, second term; term ends in 2031) •
Tsutomu Ōtsu (
Sanseitō, first term; term ends in 2031) == Elected Councillors ==