ZIP code 98390: Sumner, WA
ZIP code 98390 is in Sumner (90% of residents) and Alderton (8.7%), in Pierce County, Washington. It is in Washington's 10th congressional district (91%) and Washington's 8th congressional district (8.8%). Its state senate districts are Legislative (Senate) District 31 (99%) and Legislative (Senate) District 25 (0.8%); its state house districts are Legislative (House) District 31 (99%) and Legislative (House) District 25 (0.8%).
See it on the mapAll of Washington
City and county
| City or town | Share of ZIP residents |
|---|---|
| Sumner | 90% |
| Alderton | 8.7% |
| North Puyallup | 0.7% |
| County | Share of ZIP residents |
|---|---|
| Pierce County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Puyallup CCD | 100% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Washington's 10th congressional district (WA-10) | 91% |
| Washington's 8th congressional district (WA-08) | 8.8% |
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-10) | Marilyn Strickland (D) | 202-225-9740 | 91% |
| U.S. Representative (WA-08) | Kim Schrier (D) | 202-225-7761 | 8.8% |
| 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 31) | Phil Fortunato (R) | 99% | |
| State Senator (Legislative (Senate) District 25) | Chris Gildon (R) | 0.8% | |
| State Representative (Legislative (House) District 31) | Drew Stokesbary (R) | 99% | |
| State Representative (Legislative (House) District 31) | Josh Penner (R) | 99% | |
| State Representative (Legislative (House) District 25) | Cyndy Jacobsen (R) | 0.8% | |
| State Representative (Legislative (House) District 25) | Michael Keaton (R) | 0.8% |
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
- Sumner laws: search for the Sumner, Washington code of ordinances
- Alderton laws: search for the Alderton, Washington code of ordinances
- Pierce County website: https://piercecountywa.gov
- Pierce County laws: search for the Pierce County, Washington code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| Legislative (Senate) District 31 | 99% |
| Legislative (Senate) District 25 | 0.8% |
| State house district | Share of ZIP residents |
|---|---|
| Legislative (House) District 31 | 99% |
| Legislative (House) District 25 | 0.8% |
Voting precincts
12 voting precincts overlap ZIP 98390. 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:98390")
ZIP 98390 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.