Boundary Atlas

ZIP code 19081: Swarthmore, PA

ZIP code 19081 is in Swarthmore (61% of residents), Woodlyn (24%) and Folsom (11%), in Delaware County, Pennsylvania. It is in Pennsylvania's 5th congressional district. Its state senate district is State Senate District 26; its state house districts are State House District 165 (65%), State House District 161 (29%) and State House District 162 (5.5%).

10,803residents (2020 Census)
2.2 sq miland area
3cities and towns
1congressional district
10voting precincts

See it on the mapAll of Pennsylvania

City and county

City or townShare of ZIP residents
Swarthmore61%
Woodlyn24%
Folsom11%

CountyShare of ZIP residents
Delaware County100%

Town or county subdivisionShare of ZIP residents
Swarthmore borough61%
Ridley township35%
Springfield township4.5%

Congressional district

Congressional districtShare of ZIP residents
Pennsylvania's 5th congressional district (PA-05)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 26100%

State house districtShare of ZIP residents
State House District 16565%
State House District 16129%
State House District 1625.5%

Voting precincts

10 voting precincts overlap ZIP 19081. 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:19081")

ZIP 19081 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.