https://en.wikipedia.org/wiki/Current_members_of_the_United_States_Senate For mailings, each Senator address ends with Washington, DC 20510 https://en.wikipedia.org/wiki/List_of_members_of_the_United_States_House_of_Representatives For mailings, each House member address ends with Washington, DC 20515 2019 US Senator Office Addresses 34 seats up in 2020: 22-Rp and 12-Dm; Source: https://www.senate.gov/senators/contact x5274 R-B3-Rick Scott Rp-FL-CPMRA-SComm x5251 R-B33-Mitt Romney Rp-UT-CPMRA x4814 R-B85-Mike Braun Rp-IN-CPMRA x3254 R-111-Joni Ernst Rp-IA-CPMRA-2020 x2353 … Continue reading United States Legislators: Senators and Representatives