ZIP code 99330: Franklin County, WA
ZIP code 99330 is in Franklin County, Washington, outside any city or Census-designated place. It is in Washington's 5th congressional district. Its state senate district is Legislative (Senate) District 16; its state house district is Legislative (House) District 16.
See it on the mapAll of Washington
City and county
Outside any city or Census-designated place.
| County | Share of ZIP residents |
|---|---|
| Franklin County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Pasco North CCD | 88% |
| Kahlotus CCD | 10% |
| Connell CCD | 1.4% |
Congressional district
| Congressional district | Share of ZIP residents |
|---|---|
| Washington's 5th congressional district (WA-05) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (WA-05) | Michael Baumgartner (R) | 202-225-2006 | 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 16) | Perry Dozier (R) | 100% | |
| State Representative (Legislative (House) District 16) | Mark Klicker (R) | 100% | |
| State Representative (Legislative (House) District 16) | Skyler Rude (R) | 100% |
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).
Local government
- Franklin County website: http://www.co.franklin.wa.us
- Franklin County laws: search for the Franklin County, Washington code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| Legislative (Senate) District 16 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| Legislative (House) District 16 | 100% |
Voting precincts
8 voting precincts overlap ZIP 99330. Map them, with each precinct's share of the ZIP's residents.
Get this in your AI agent
Your agent can get these cities, counties, districts and precincts with their shares, and their GeoJSON boundaries, from Boundary Atlas. Add https://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
related_geographies(id="us:zcta:99330")
ZIP 99330 here is the Census Bureau's ZIP Code Tabulation Area, which approximates the USPS ZIP Code; PO-box-only ZIPs have none. Districts are the maps in force for the November 3, 2026 election.