ZIP code 19373: Thornbury, PA
ZIP code 19373 is in Delaware County (99%) and Chester County (1.0%), Pennsylvania, outside any city or Census-designated place. It is in Pennsylvania's 5th congressional district (99%) and Pennsylvania's 6th congressional district (1.0%). Its state senate district is State Senate District 9; its state house district is State House District 160.
See it on the mapAll of Pennsylvania
City and county
Outside any city or Census-designated place.
| County | Share of ZIP residents |
|---|---|
| Delaware County | 99% |
| Chester County | 1.0% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Thornbury township | 72% |
| Concord township | 27% |
| Thornbury township | 1.0% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Pennsylvania's 5th congressional district (PA-05) | 99% |
| Pennsylvania's 6th congressional district (PA-06) | 1.0% |
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-05) | Mary Gay Scanlon (D) | 202-225-2011 | 99% |
| U.S. Representative (PA-06) | Chrissy Houlahan (D) | 202-225-4315 | 1.0% |
| 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 9) | John Kane (Democratic) | 100% | |
| State Representative (State House District 160) | Craig Williams (R) | 610-358-5925 | 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
- Delaware County website: http://www.co.delaware.pa.us
- Delaware County laws: search for the Delaware County, Pennsylvania code of ordinances
- Chester County website: http://www.chesco.org
- Chester County laws: search for the Chester County, Pennsylvania code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 9 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 160 | 100% |
Voting precincts
4 voting precincts overlap ZIP 19373. 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:19373")
ZIP 19373 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.