U.S. Senate
Mazie K. Hirono
Senator for Hawaii (junior)
Party: Democrat
In office since January 3, 2013
Official portrait, Biographical Directory of the United States Congress, via unitedstates/images
How to reach Mazie K. Hirono
Washington, D.C. office
109 Hart Senate Office Building Washington DC 20510State offices
- Honolulu300 Ala Moana Blvd., Rm. 3-106, Prince Kuhio Federal Building, Honolulu, HI 96850(808) 522-8970
Source: unitedstates/congress-legislators, U.S. Senate, senators contact information.
Checked against more than one source
| Item | Result | Values by source |
|---|---|---|
| Phone | agree | cl: (202) 224-6361 senate-xml: (202) 224-6361 |
| Website | agree | cl: https://www.hirono.senate.gov senate-xml: https://www.hirono.senate.gov/ |
| Washington address | agree | cl: 109 Hart Senate Office Building Washington DC 20510 senate-xml: 109 Hart Senate Office Building Washington DC 20510 |
| Party label | agree | cl: Democrat senate-xml: D |
Voting and bill activity
Bills sponsored
66
119th Congress
Bills cosponsored
544
same period
Sponsored bills that became law
0
same period
Bills source: GovInfo bulk data, Bill Status, through November 14, 2026.
Newest bills sponsored
- A resolution recognizing the month of October 2026 as Filipino American History Month and celebrating the history and culture of Filipino Americans and their immense contributions to the United States.Introduced September 30, 2026
- A bill to amend the Federal Water Pollution Control Act to establish the Hawaiian Islands Program, and for other purposes.Introduced September 29, 2026
- A bill to amend the Federal Water Pollution Control Act to provide grants to upgrade or convert small-capacity cesspools for households in the State of Hawaii.Introduced September 29, 2026
- A resolution expressing support for the recognition of September 27, 2026, to October 3, 2026, as "Asian American and Native American Pacific Islander-Serving Institutions Week".Introduced September 28, 2026
- Protect American Values Act of 2026Introduced August 6, 2026
Committees
Committees
- Senate Committee on Armed ServicesMember
- Senate Committee on Energy and Natural ResourcesMember
- Senate Committee on Small Business and EntrepreneurshipMember
- Senate Committee on Veterans' AffairsMember
- Senate Committee on the JudiciaryMember
Subcommittees
- Border Security and ImmigrationMember
- EnergyMember
- Federal Courts, Oversight, Agency Action, and Federal RightsMember
- Intellectual PropertyMember
- National ParksMember
- PersonnelMember
- Public Lands, Forests, and MiningMember
- Readiness and Management SupportRanking Member
- SeapowerMember
- the ConstitutionMember
Source: unitedstates/congress-legislators, as of 2026-11-14.
Campaign finance filings
Totals reported to the Federal Election Commission by the member’s campaign committee, one row per two-year cycle. They are figures as filed and say nothing about votes.
| Cycle | Total receipts | Total disbursements | Cash on hand at end | From individuals | Covers filings through | Record |
|---|---|---|---|---|---|---|
| 2026 | $616,935 | $659,957 | $1,362,853 | $548,329 | September 30, 2026 | FEC page |
| 2024 | $3,292,049 | $2,799,353 | $1,405,875 | $2,064,894 | December 31, 2024 | FEC page |
| 2022 | $957,489 | $888,149 | $913,179 | $737,832 | December 31, 2022 | FEC page |
Source: Federal Election Commission, all candidates summary bulk files. Period: cycles 2026, 2024, 2022.
Sources and period
unitedstates/congress-legislators
Period: 2026-11-14 · Release: September 24, 2026 · Refreshed: as members change · Terms: public domain (CC0 1.0)
U.S. Senate, senators contact information
Period: 2026-11-14 · Release: November 10, 2026 · Refreshed: as members change · Terms: U.S. government work
unitedstates/images, official portraits
Period: 2026-11-14 · Refreshed: as members change · Terms: public domain
GovInfo bulk data, Bill Status
Period: 119th Congress to 2026-11-14 · Release: November 14, 2026 · Refreshed: daily · Terms: U.S. government work; CRS summaries are public domain
Federal Election Commission, all candidates summary bulk files
Period: 2025-2026, 2023-2024, 2021-2022 through 2026-10-22 · Release: October 22, 2026 · Refreshed: rolling, per filing · Terms: public record; contributor names and addresses are not used
Census Bureau, American Community Survey 1-year, table-based summary file
Period: 2025 · Release: October 29, 2026 · Refreshed: annual · Terms: U.S. government work; cite the Census Bureau
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