Boundary Atlas

ZIP code 18104: Allentown, PA

ZIP code 18104 is in Allentown (43% of residents) and Cetronia (5.1%), in Lehigh County, Pennsylvania. 52% of its residents live outside city limits. It is in Pennsylvania's 7th congressional district. Its state senate districts are State Senate District 14 (57%) and State Senate District 16 (43%); its state house districts are State House District 132 (98%), State House District 134 (1.6%), State House District 183 (0.8%) and State House District 187 (<0.1%).

47,289residents (2020 Census)
23.0 sq miland area
3cities and towns
1congressional district
29voting precincts

See it on the mapAll of Pennsylvania

City and county

City or townShare of ZIP residents
Allentown43%
Cetronia5.1%
Dorneyville0.5%

CountyShare of ZIP residents
Lehigh County100%

Town or county subdivisionShare of ZIP residents
Allentown city43%
South Whitehall township37%
Upper Macungie township19%
North Whitehall township0.8%
Lower Macungie township<0.1%

Congressional district

Congressional districtShare of ZIP residents
Pennsylvania's 7th congressional district (PA-07)100%

Elected officials

OfficeMemberContactShare of residents
MayorMatt Tuerk610-437-754643%
U.S. Representative (PA-07)Ryan Mackenzie (R)202-225-6411100%
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 14)Nick Miller (Democratic)610-821-846857%
State Senator (State Senate District 16)Jarrett Coleman (R)267-551-374443%
State Representative (State House District 132)Mike Schlossberg (Democratic)610-821-557798%
State Representative (State House District 134)Pete Schweyer (Democratic)610-791-62701.6%
State Representative (State House District 183)Zach Mako (R)610-502-27010.8%
State Representative (State House District 187)Gary Day (R)610-965-9933<0.1%

Officials serving now (members of Congress until January 3, 2027). Sources: Mayors: Open States (public domain); 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 1457%
State Senate District 1643%

State house districtShare of ZIP residents
State House District 13298%
State House District 1341.6%
State House District 1830.8%
State House District 187<0.1%

Voting precincts

29 voting precincts overlap ZIP 18104. Map them, with each precinct's share of the ZIP's residents.

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ZIP 18104 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.