Boundary Atlas

ZIP code 15122: West Mifflin, PA

ZIP code 15122 is in West Mifflin (98% of residents) and Pleasant Hills (2.2%), in Allegheny County, Pennsylvania. It is in Pennsylvania's 12th congressional district. Its state senate districts are State Senate District 45 (98%) and State Senate District 37 (2.2%); its state house districts are State House District 38 (86%), State House District 35 (12%) and State House District 39 (2.2%).

19,340residents (2020 Census)
12.9 sq miland area
3cities and towns
1congressional district
23voting precincts

See it on the mapAll of Pennsylvania

City and county

City or townShare of ZIP residents
West Mifflin98%
Pleasant Hills2.2%
Whitaker0.1%

CountyShare of ZIP residents
Allegheny County100%

Town or county subdivisionShare of ZIP residents
West Mifflin borough98%
Pleasant Hills borough2.2%
Whitaker borough0.1%

Congressional district

Congressional districtShare of ZIP residents
Pennsylvania's 12th congressional district (PA-12)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (PA-12)Summer L. Lee (D)202-225-2135100%
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 45)Nick Pisciottano (Democratic)412-664-520098%
State Senator (State Senate District 37)Devlin Robinson (R)412-643-30202.2%
State Representative (State House District 38)John Inglis (Democratic)412-466-194086%
State Representative (State House District 35)Dan Goughnour (Democratic)412-664-003512%
State Representative (State House District 39)Andrew Kuzma (R)412-382-20092.2%

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 4598%
State Senate District 372.2%

State house districtShare of ZIP residents
State House District 3886%
State House District 3512%
State House District 392.2%

Voting precincts

23 voting precincts overlap ZIP 15122. Map them, with each precinct's share of the ZIP's residents.

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ZIP 15122 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.