ZIP code 19504: Washington, PA
ZIP code 19504 is in Berks County (68%) and Montgomery County (32%), Pennsylvania, outside any city or Census-designated place. It is in Pennsylvania's 4th congressional district (99%) and Pennsylvania's 1st congressional district (0.5%). Its state senate district is State Senate District 24; its state house districts are State House District 130 (68%), State House District 147 (32%) and State House District 131 (0.5%).
See it on the mapAll of Pennsylvania
City and county
| City or town | Share of ZIP residents |
|---|---|
| Bally | 0.4% |
| Hereford | 0.2% |
| County | Share of ZIP residents |
|---|---|
| Berks County | 68% |
| Montgomery County | 32% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Washington township | 46% |
| Douglass township | 31% |
| Hereford township | 17% |
| District township | 4.7% |
| Upper Hanover township | 0.8% |
| Bally borough | 0.4% |
| New Hanover township | 0.4% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Pennsylvania's 4th congressional district (PA-04) | 99% |
| Pennsylvania's 1st congressional district (PA-01) | 0.5% |
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 (PA-04) | Madeleine Dean (D) | 202-225-4731 | 99% |
| U.S. Representative (PA-01) | Brian K. Fitzpatrick (R) | 202-225-4276 | 0.5% |
| 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 24) | Tracy Pennycuick (R) | 215-541-2388 | 100% |
| State Representative (State House District 130) | David Maloney (R) | 610-369-3010 | 68% |
| State Representative (State House District 147) | Donna Scheuren (R) | 215-256-6030 | 32% |
| State Representative (State House District 131) | Milou Mackenzie (R) | 215-679-3152 | 0.5% |
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
- Berks County website: http://www.co.berks.pa.us
- Berks County laws: search for the Berks County, Pennsylvania code of ordinances
- Montgomery County website: https://www.montgomerycountypa.gov/
- Montgomery County laws: search for the Montgomery County, Pennsylvania code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 24 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 130 | 68% |
| State House District 147 | 32% |
| State House District 131 | 0.5% |
Voting precincts
10 voting precincts overlap ZIP 19504. 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:19504")
ZIP 19504 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.