Washington's 10th congressional district (WA-10)
Washington's 10th congressional district (WA-10) covers parts or all of Thurston County and Pierce County, and 47 ZIP codes (26 wholly inside it). Its 2020 population was 769,630. This is the map in force for the November 3, 2026 election.
Who represents WA-10
| Office | Member | Contact |
|---|---|---|
| U.S. Representative (WA-10) | Marilyn Strickland (D) | 202-225-9740 |
| U.S. Senator | Maria Cantwell (D) | 202-224-3441 · contact form |
| U.S. Senator | Patty Murray (D) | 202-224-2621 · contact form |
Officials serving now (members of Congress until January 3, 2027). Sources: Members of Congress: the @unitedstates project, congress-legislators (CC0).
Counties
| County | Share of the county's residents in WA-10 |
|---|---|
| Thurston County | 89% |
| Pierce County | 55% |
ZIP codes
Percentages mark ZIPs only partly in WA-10: the share of that ZIP's residents inside it.
- 98047 (0.7%)
- 98092 (19%)
- 98303
- 98327
- 98360 (0.2%)
- 98371
- 98372 (95%)
- 98373
- 98374 (89%)
- 98375
- 98387 (68%)
- 98388
- 98390 (91%)
- 98391 (1.1%)
- 98404
- 98408 (80%)
- 98409 (0.8%)
- 98418 (58%)
- 98421 (2.7%)
- 98424 (<0.1%)
- 98430
- 98433
- 98438
- 98439
- 98443
- 98444
- 98445
- 98446
- 98447
- 98466 (91%)
- 98467 (94%)
- 98498
- 98499
- 98501
- 98502 (100%)
- 98503
- 98505
- 98506
- 98512
- 98513
- 98516
- 98556
- 98576 (16%)
- 98579 (21%)
- 98580 (10%)
- 98589 (53%)
- 98597 (56%)
Towns
Olympia CCD, Olympia West CCD, Fort Lewis-DuPont CCD, Olympia East CCD, Puyallup CCD, Tacoma CCD, Graham-Thrift CCD, Thurston South CCD, Key Peninsula-Anderson Island CCD and Roy CCD.
Get this in your AI agent
Your agent can draw every precinct in WA-10, or list them with population shares (related_geographies). Add https://boundarymcp.com/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
get_boundaries(id="us:congressional_district:5310", children_level="precinct", include_districts=True)