Boundary Atlas

ZIP code 17512: Columbia, PA

ZIP code 17512 is in Columbia (56% of residents), in Lancaster County, Pennsylvania. 44% of its residents live outside city limits. It is in Pennsylvania's 11th congressional district. Its state senate districts are State Senate District 36 (98%) and State Senate District 13 (1.7%); its state house districts are State House District 41 (93%), State House District 37 (4.2%), State House District 97 (1.7%) and State House District 98 (0.8%).

18,267residents (2020 Census)
16.0 sq miland area
2cities and towns
1congressional district
13voting precincts

See it on the mapAll of Pennsylvania

City and county

City or townShare of ZIP residents
Columbia56%
Washington Boro0.4%

CountyShare of ZIP residents
Lancaster County100%

Town or county subdivisionShare of ZIP residents
Columbia borough56%
West Hempfield township37%
Rapho township4.2%
Manor township1.7%
East Donegal township0.8%

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 3698%
State Senate District 131.7%

State house districtShare of ZIP residents
State House District 4193%
State House District 374.2%
State House District 971.7%
State House District 980.8%

Voting precincts

13 voting precincts overlap ZIP 17512. Map them, with each precinct's share of the ZIP's residents.

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ZIP 17512 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.