ZIP code 17823: Washington, PA
ZIP code 17823 is in Northumberland County, Pennsylvania, outside any city or Census-designated place. It is in Pennsylvania's 9th congressional district. Its state senate district is State Senate District 27; its state house district is State House District 107.
See it on the mapAll of Pennsylvania
City and county
Outside any city or Census-designated place.
| County | Share of ZIP residents |
|---|---|
| Northumberland County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Washington township | 51% |
| Little Mahanoy township | 22% |
| Upper Mahanoy township | 16% |
| Jackson township | 11% |
| West Cameron township | land only |
Congressional district
| Congressional district | Share of ZIP residents |
|---|---|
| Pennsylvania's 9th congressional district (PA-09) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (PA-09) | Daniel Meuser (R) | 202-225-6511 | 100% |
| U.S. Senator | David McCormick (R) | 202-224-6324 · contact form | statewide |
| U.S. Senator | John Fetterman (D) | 202-224-4254 · contact form | statewide |
| State Senator (State Senate District 27) | Lynda Culver (R) | 570-387-4267 | 100% |
| State Representative (State House District 107) | Joanne Stehr (R) | 570-653-2018 | 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
- Northumberland County laws: search for the Northumberland County, Pennsylvania code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 27 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 107 | 100% |
Voting precincts
5 voting precincts overlap ZIP 17823. 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://boundarymcp.com/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
related_geographies(id="us:zcta:17823")
ZIP 17823 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.