Boundary Atlas

ZIP code 17745: Lock Haven, PA

ZIP code 17745 is in Lock Haven (47% of residents), Dunnstown (8.6%), Flemington (7.4%), Castanea (6.1%), McElhattan (5.0%) and Woolrich (4.7%), in Clinton County (99%) and Lycoming County (0.7%), Pennsylvania. 21% of its residents live outside city limits. It is in Pennsylvania's 15th congressional district. Its state senate districts are State Senate District 25 (99%) and State Senate District 23 (0.7%); its state house districts are State House District 76 (99%) and State House District 84 (0.7%).

17,096residents (2020 Census)
229.2 sq miland area
6cities and towns
1congressional district
21voting precincts

See it on the mapAll of Pennsylvania

City and county

City or townShare of ZIP residents
Lock Haven47%
Dunnstown8.6%
Flemington7.4%
Castanea6.1%
McElhattan5.0%
Woolrich4.7%

CountyShare of ZIP residents
Clinton County99%
Lycoming County0.7%

Town or county subdivisionShare of ZIP residents
Lock Haven city47%
Woodward township14%
Pine Creek township8.4%
Flemington borough7.4%
Castanea township6.5%
Wayne township6.2%
Dunnstable township5.9%
Gallagher township2.3%
Colebrook township0.7%
McHenry township0.2%
Cummings township0.2%
Brown township0.1%
Allison township0.1%
Watson township<0.1%
Grugan township<0.1%
Chapman township<0.1%

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 25)Cris Dush (R)814-646-727299%
State Senator (State Senate District 23)Gene Yaw (R)570-724-52310.7%
State Representative (State House District 76)Stephanie Borowicz (R)570-966-005299%
State Representative (State House District 84)Joe Hamm (R)570-314-20360.7%

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 2599%
State Senate District 230.7%

State house districtShare of ZIP residents
State House District 7699%
State House District 840.7%

Voting precincts

21 voting precincts overlap ZIP 17745. Map them, with each precinct's share of the ZIP's residents.

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ZIP 17745 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.