*Party abbreviations: LDP=Liberal Democratic Party; DP=Democratic Party; KM=Komeito; JCP=Japanese Communist Party; IFO=Initiatives from Osaka; SDP=Social Democratic Party; PLP=People's Life Party; PJK=The Party for Japanese Kokoro; AEJ=Assembly to Energize Japan; NRP=New Renaissance Party; Oth.=Others; Ind.=Independents
*Const. = Constituencies; PRB = Proportional representation bloc; Uncont. = Uncontested seats; Pre = Pre-election seats
*The president and vice-president of the House of Councillors are included in their party seat totals.