Boundary Atlas

ZIP code 17554: Mountville, PA

ZIP code 17554 is in Mountville (38% of residents), in Lancaster County, Pennsylvania. 62% of its residents live outside city limits. It is in Pennsylvania's 11th congressional district. Its state senate districts are State Senate District 36 (71%) and State Senate District 13 (29%); its state house districts are State House District 41 (71%) and State House District 97 (29%).

8,042residents (2020 Census)
3.1 sq miland area
1cities and towns
1congressional district
8voting precincts

See it on the mapAll of Pennsylvania

City and county

City or townShare of ZIP residents
Mountville38%

CountyShare of ZIP residents
Lancaster County100%

Town or county subdivisionShare of ZIP residents
Mountville borough38%
West Hempfield township33%
Manor township29%
East Hempfield township0.3%

Congressional district

Congressional districtShare of ZIP residents
Pennsylvania's 11th congressional district (PA-11)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 3671%
State Senate District 1329%

State house districtShare of ZIP residents
State House District 4171%
State House District 9729%

Voting precincts

8 voting precincts overlap ZIP 17554. 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:17554")

ZIP 17554 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.