Boundary Atlas

ZIP code 18074: Upper Frederick, PA

ZIP code 18074 is in Montgomery County, Pennsylvania, outside any city or Census-designated place. It is in Pennsylvania's 4th congressional district (97%) and Pennsylvania's 1st congressional district (2.6%). Its state senate district is State Senate District 24; its state house districts are State House District 147 (97%), State House District 131 (2.6%) and State House District 146 (0.3%).

5,534residents (2020 Census)
18.1 sq miland area
1cities and towns
2congressional districts
7voting precincts

See it on the mapAll of Pennsylvania

City and county

City or townShare of ZIP residents
Spring Mount0.6%

CountyShare of ZIP residents
Montgomery County100%

Town or county subdivisionShare of ZIP residents
Upper Frederick township41%
New Hanover township34%
Lower Frederick township22%
Marlborough township2.6%
Limerick township0.3%

Congressional districts

Congressional districtShare of ZIP residents
Pennsylvania's 4th congressional district (PA-04)97%
Pennsylvania's 1st congressional district (PA-01)2.6%

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.

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (PA-04)Madeleine Dean (D)202-225-473197%
U.S. Representative (PA-01)Brian K. Fitzpatrick (R)202-225-42762.6%
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 24)Tracy Pennycuick (R)215-541-2388100%
State Representative (State House District 147)Donna Scheuren (R)215-256-603097%
State Representative (State House District 131)Milou Mackenzie (R)215-679-31522.6%
State Representative (State House District 146)Joe Ciresi (Democratic)484-200-82650.3%

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 24100%

State house districtShare of ZIP residents
State House District 14797%
State House District 1312.6%
State House District 1460.3%

Voting precincts

7 voting precincts overlap ZIP 18074. 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:

related_geographies(id="us:zcta:18074")

ZIP 18074 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.