Boundary Atlas

ZIP code 16342: Polk, PA

ZIP code 16342 is in Polk (30% of residents), in Venango County (96%) and Mercer County (3.7%), Pennsylvania. 70% of its residents live outside city limits. It is in Pennsylvania's 16th congressional district (91%) and Pennsylvania's 15th congressional district (9.0%). Its state senate districts are State Senate District 21 (96%) and State Senate District 50 (3.7%); its state house districts are State House District 64 (96%) and State House District 17 (3.7%).

2,092residents (2020 Census)
66.3 sq miland area
1cities and towns
2congressional districts
8voting precincts

See it on the mapAll of Pennsylvania

City and county

City or townShare of ZIP residents
Polk30%

CountyShare of ZIP residents
Venango County96%
Mercer County3.7%

Town or county subdivisionShare of ZIP residents
Polk borough30%
Mineral township19%
Victory township18%
Frenchcreek township15%
Irwin township8.9%
Sandycreek township3.9%
Sandy Lake township3.7%
Clinton township1.7%

Congressional districts

Congressional districtShare of ZIP residents
Pennsylvania's 16th congressional district (PA-16)91%
Pennsylvania's 15th congressional district (PA-15)9.0%

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.

State legislative districts

State senate districtShare of ZIP residents
State Senate District 2196%
State Senate District 503.7%

State house districtShare of ZIP residents
State House District 6496%
State House District 173.7%

Voting precincts

8 voting precincts overlap ZIP 16342. 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:16342")

ZIP 16342 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.