Boundary Atlas

ZIP code 08889: White House Station, NJ

ZIP code 08889 is in White House Station (31% of residents) and Oldwick (3.3%), in Hunterdon County, New Jersey. 66% of its residents live outside city limits. It is in New Jersey's 7th congressional district. Its state senate districts are State Senate District 16 (95%) and State Senate District 23 (5.3%); its state house districts are Assembly District 16 (95%) and Assembly District 23 (5.3%).

9,928residents (2020 Census)
23.1 sq miland area
2cities and towns
1congressional district
13voting precincts

See it on the mapAll of New Jersey

City and county

City or townShare of ZIP residents
White House Station31%
Oldwick3.3%

CountyShare of ZIP residents
Hunterdon County100%

Town or county subdivisionShare of ZIP residents
Readington township95%
Tewksbury township5.3%

Congressional district

Congressional districtShare of ZIP residents
New Jersey's 7th congressional district (NJ-07)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 1695%
State Senate District 235.3%

State house districtShare of ZIP residents
Assembly District 1695%
Assembly District 235.3%

Voting precincts

13 voting precincts overlap ZIP 08889. 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:08889")

ZIP 08889 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.