Boundary Atlas

ZIP code 18045: Palmer, PA

ZIP code 18045 is in Palmer Heights (12% of residents) and Old Orchard (7.9%), in Northampton County, Pennsylvania. 80% of its residents live outside city limits. It is in Pennsylvania's 7th congressional district. Its state senate district is State Senate District 18; its state house districts are State House District 137 (78%) and State House District 136 (22%).

30,317residents (2020 Census)
19.3 sq miland area
3cities and towns
1congressional district
19voting precincts

See it on the mapAll of Pennsylvania

City and county

City or townShare of ZIP residents
Palmer Heights12%
Old Orchard7.9%
Tatamy0.5%

CountyShare of ZIP residents
Northampton County100%

Town or county subdivisionShare of ZIP residents
Palmer township73%
Bethlehem township25%
Lower Nazareth township0.8%
Tatamy borough0.5%
Easton cityland only
Stockertown boroughland only

Congressional district

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

Elected officials

OfficeMemberContactShare of residents
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 18)Lisa Boscola (Democratic)610-250-5627100%
State Representative (State House District 137)Joe Emrick (R)484-544-014678%
State Representative (State House District 136)Bob Freeman (Democratic)610-253-554322%
State Representative (State House District 138)Ann Flood (R)610-746-2100<0.1%

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 18100%

State house districtShare of ZIP residents
State House District 13778%
State House District 13622%
State House District 138land only

Voting precincts

19 voting precincts overlap ZIP 18045. Map them, with each precinct's share of the ZIP's residents.

Get this in your AI agent

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:18045")

ZIP 18045 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.