This is a list of mailing addresses for all current US Senators (33 total):
| Kyrsten Sinema (D-AZ) | Senator Kyrsten Sinema 317 Hart Senate Office Building Washington DC 20510 |
| Dianne Feinstein (D-CA) | Senator Dianne Feinstein 331 Hart Senate Office Building Washington DC 20510 |
| Chris Murphy (D-CT) | Senator Chris Murphy 136 Hart Senate Office Building Washington DC 20510 |
| Tom Carper (D-DE) | Senator Tom Carper 513 Hart Senate Office Building Washington DC 20510 |
| Rick Scott (R-FL) | Senator Rick Scott 716 Hart Senate Office Building Washington DC 20510 |
| Mazie Hirono (D-HI) | Senator Mazie Hirono 730 Hart Senate Office Building Washington DC 20510 |
| Mike Braun (R-IN) | Senator Mike Braun 374 Russell Senate Office Building Washington DC 20510 |
| Angus King (I-ME) | Senator Angus King 133 Hart Senate Office Building Washington DC 20510 |
| Ben Cardin (D-MD) | Senator Ben Cardin 509 Hart Senate Office Building Washington DC 20510 |
| Elizabeth Warren (D-MA) | Senator Elizabeth Warren 317 Hart Senate Office Building Washington DC 20510 |
| Debbie Stabenow (D-MI) | Senator Debbie Stabenow 731 Hart Senate Office Building Washington DC 20510 |
| Amy Klobuchar (D-MN) | Senator Amy Klobuchar 302 Hart Senate Office Building Washington DC 20510 |
| Roger Wicker (R-MS) | Senator Roger Wicker 555 Dirksen Senate Office Building Washington DC 20510 |
| Josh Hawley (R-MO) | Senator Josh Hawley 212 Russell Senate Office Building Washington DC 20510 |
| Jon Tester (D-MT) | Senator Jon Tester 311 Hart Senate Office Building Washington DC 20510 |
| Deb Fischer (R-NE) | Senator Deb Fischer 454 Russell Senate Office Building Washington DC 20510 |
| Jacky Rosen (D-NV) | Senator Jacky Rosen 144 Russell Senate Office Building Washington DC 20510 |
| Bob Menendez (D-NJ) | Senator Bob Menendez 528 Hart Senate Office Building Washington DC 20510 |
| Martin Heinrich (D-NM) | Senator Martin Heinrich 303 Hart Senate Office Building Washington DC 20510 |
| Kirsten Gillibrand (D-NY) | Senator Kirsten Gillibrand 478 Russell Senate Office Building Washington DC 20510 |
| Kevin Cramer (R-ND) | Senator Kevin Cramer 400 Russell Senate Office Building Washington DC 20510 |
| Sherrod Brown (D-OH) | Senator Sherrod Brown 713 Hart Senate Office Building Washington DC 20510 |
| Bob Casey (D-PA) | Senator Bob Casey 393 Russell Senate Office Building Washington DC 20510 |
| Sheldon Whitehouse (D-RI) | Senator Sheldon Whitehouse 530 Hart Senate Office Building Washington DC 20510 |
| Marsha Blackburn (R-TN) | Senator Marsha Blackburn 357 Dirksen Senate Office Building Washington DC 20510 |
| Ted Cruz (R-TX) | Senator Ted Cruz 404 Russell Senate Office Building Washington DC 20510 |
| Mitt Romney (R-UT) | Senator Mitt Romney 124 Russell Senate Office Building Washington DC 20510 |
| Bernie Sanders (I-VT) | Senator Bernie Sanders 332 Dirksen Senate Office Building Washington DC 20510 |
| Tim Kaine (D-VA) | Senator Tim Kaine 231 Russell Senate Office Building Washington DC 20510 |
| Maria Cantwell (D-WA) | Senator Maria Cantwell 511 Hart Senate Office Building Washington DC 20510 |
| Joe Manchin (D-WV) | Senator Joe Manchin 306 Hart Senate Office Building Washington DC 20510 |
| Tammy Baldwin (D-WI) | Senator Tammy Baldwin 709 Hart Senate Office Building Washington DC 20510 |
| John Barrasso (R-WY) | Senator John Barrasso 307 Dirksen Senate Office Building Washington DC 20510 |