ZIP code 99301: Pasco, WA
ZIP code 99301 is in Pasco (92% of residents) and West Pasco (1.8%), in Franklin County, Washington. 6.6% of its residents live outside city limits. It is in Washington's 4th congressional district (98%) and Washington's 5th congressional district (2.2%). Its state senate districts are Legislative (Senate) District 16 (41%), Legislative (Senate) District 14 (34%) and Legislative (Senate) District 8 (25%); its state house districts are Legislative (House) District 16 (41%), Legislative (House) District 14 (34%) and Legislative (House) District 8 (25%).
See it on the mapAll of Washington
City and county
| City or town | Share of ZIP residents |
|---|---|
| Pasco | 92% |
| West Pasco | 1.8% |
| County | Share of ZIP residents |
|---|---|
| Franklin County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Pasco CCD | 72% |
| Pasco North CCD | 26% |
| Kahlotus CCD | 1.3% |
| Connell CCD | <0.1% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Washington's 4th congressional district (WA-04) | 98% |
| Washington's 5th congressional district (WA-05) | 2.2% |
This ZIP is split between districts. A mailing address in it could be in either; the map or locate_point gives the district for an exact address.
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (WA-04) | Dan Newhouse (R) | 202-225-5816 | 98% |
| U.S. Representative (WA-05) | Michael Baumgartner (R) | 202-225-2006 | 2.2% |
| 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) | 41% | |
| State Senator (Legislative (Senate) District 14) | Curtis King (R) | 34% | |
| State Senator (Legislative (Senate) District 8) | Matt Boehnke (R) | 25% | |
| State Representative (Legislative (House) District 16) | Mark Klicker (R) | 41% | |
| State Representative (Legislative (House) District 16) | Skyler Rude (R) | 41% | |
| State Representative (Legislative (House) District 14) | Deb Manjarrez (R) | 34% | |
| State Representative (Legislative (House) District 14) | Gloria Mendoza (R) | 34% | |
| State Representative (Legislative (House) District 8) | April Connors (R) | 25% | |
| State Representative (Legislative (House) District 8) | Stephanie Barnard (R) | 25% |
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
- Pasco website: https://www.pasco-wa.gov/
- Pasco laws: search for the Pasco, Washington code of ordinances
- West Pasco laws: search for the West Pasco, Washington code of ordinances
- 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 | 41% |
| Legislative (Senate) District 14 | 34% |
| Legislative (Senate) District 8 | 25% |
| State house district | Share of ZIP residents |
|---|---|
| Legislative (House) District 16 | 41% |
| Legislative (House) District 14 | 34% |
| Legislative (House) District 8 | 25% |
Voting precincts
95 voting precincts overlap ZIP 99301. 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:99301")
ZIP 99301 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.