Des Moines, Washington
Des Moines is a city in King County, Washington, with 32,888 residents in 2020. It is in Washington's 9th congressional district. It spans 2 state senate and 2 state house districts.
County
| County | Share of residents |
|---|---|
| King County | 100% |
Congressional district
| Congressional district | Share of residents |
|---|---|
| Washington's 9th congressional district (WA-09) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| Mayor | Matt Mahoney | citywide | |
| U.S. Representative (WA-09) | Adam Smith (D) | 202-225-8901 | 100% |
| U.S. Senator | Maria Cantwell (D) | 202-224-3441 · contact form | statewide |
| U.S. Senator | Patty Murray (D) | 202-224-2621 · contact form | statewide |
| State Senator (Legislative (Senate) District 33) | Tina Orwall (Democratic) | 92% | |
| State Senator (Legislative (Senate) District 30) | Claire Wilson (Democratic) | 7.7% | |
| State Representative (Legislative (House) District 33) | Edwin Obras (Democratic) | 92% | |
| State Representative (Legislative (House) District 33) | Mia Gregerson (Democratic) | 92% | |
| State Representative (Legislative (House) District 30) | Jamila Taylor (Democratic) | 7.7% | |
| State Representative (Legislative (House) District 30) | Kristine Reeves (Democratic) | 7.7% |
From Wikidata (community-maintained); confirm on the city's website.
Officials serving now (members of Congress until January 3, 2027). Sources: State legislators: Open States (public domain); Members of Congress: the @unitedstates project, congress-legislators (CC0); Mayors: Wikidata (CC0).
Local government
- Des Moines website: https://desmoineswa.gov
- Des Moines laws: search for the Des Moines, Washington code of ordinances
- King County website: https://kingcounty.gov
- King County laws: search for the King County, Washington code of ordinances
State legislative districts
| State senate district | Share of residents |
|---|---|
| Legislative (Senate) District 33 | 92% |
| Legislative (Senate) District 30 | 7.7% |
| State house district | Share of residents |
|---|---|
| Legislative (House) District 33 | 92% |
| Legislative (House) District 30 | 7.7% |
ZIP codes
Percentages mark ZIPs only partly in Des Moines: the share of that ZIP's residents living in it.
Get this in your AI agent
Your agent can get Des Moines's counties and districts with shares, its ZIP codes (level='zcta'), and its boundary as GeoJSON (get_boundaries). Add https://boundarymcp.com/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
related_geographies(id="us:place:5317635")
Des Moines here is the Census Bureau's place boundary as of January 1, 2025. Shares are of 2020 Census population. Districts are the maps in force for the November 3, 2026 election.