Boundary Atlas

ZIP code 16346: Seneca, PA

ZIP code 16346 is in Seneca (37% of residents) and Woodland Heights (11%), in Venango County, Pennsylvania. 52% of its residents live outside city limits. It is in Pennsylvania's 15th congressional district. Its state senate district is State Senate District 21; its state house district is State House District 64.

2,846residents (2020 Census)
15.6 sq miland area
2cities and towns
1congressional district
3voting precincts

See it on the mapAll of Pennsylvania

City and county

City or townShare of ZIP residents
Seneca37%
Woodland Heights11%

CountyShare of ZIP residents
Venango County100%

Town or county subdivisionShare of ZIP residents
Cranberry township100%

Congressional district

Congressional districtShare of ZIP residents
Pennsylvania's 15th congressional district (PA-15)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (PA-15)Glenn Thompson (R)202-225-5121100%
U.S. SenatorDavid McCormick (R)202-224-6324 · contact formstatewide
U.S. SenatorJohn Fetterman (D)202-224-4254 · contact formstatewide
State Senator (State Senate District 21)Scott Hutchinson (R)814-677-6345100%
State Representative (State House District 64)Lee James (R)814-827-6054100%

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

State legislative districts

State senate districtShare of ZIP residents
State Senate District 21100%

State house districtShare of ZIP residents
State House District 64100%

Voting precincts

3 voting precincts overlap ZIP 16346. Map them, with each precinct's share of the ZIP's residents.

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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:

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ZIP 16346 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.