Boundary Atlas

ZIP code 08812: Dunellen, NJ

ZIP code 08812 is in Dunellen (52% of residents), in Middlesex County (52%), Somerset County (47%) and Union County (0.7%), New Jersey. 48% of its residents live outside city limits. It is in New Jersey's 12th congressional district (53%) and New Jersey's 7th congressional district (47%). Its state senate districts are State Senate District 21 (99%) and State Senate District 22 (0.7%); its state house districts are Assembly District 21 (99%) and Assembly District 22 (0.7%).

14,593residents (2020 Census)
5.1 sq miland area
2cities and towns
2congressional districts
13voting precincts

See it on the mapAll of New Jersey

City and county

City or townShare of ZIP residents
Dunellen52%
Plainfield0.7%

CountyShare of ZIP residents
Middlesex County52%
Somerset County47%
Union County0.7%

Town or county subdivisionShare of ZIP residents
Dunellen borough52%
Green Brook township47%
Plainfield city0.7%

Congressional districts

Congressional districtShare of ZIP residents
New Jersey's 12th congressional district (NJ-12)53%
New Jersey's 7th congressional district (NJ-07)47%

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 (NJ-12)Bonnie Watson Coleman (D)202-225-580153%
U.S. Representative (NJ-07)Thomas H. Kean, Jr. (R)202-225-536147%
U.S. SenatorAndy Kim (D)202-224-4744statewide
U.S. SenatorCory A. Booker (D)202-224-3224 · contact formstatewide
State Senator (State Senate District 21)Jon Bramnick (R)908-232-207399%
State Senator (State Senate District 22)Nick Scutari (Democratic)732-827-74800.7%
Assembly Member (Assembly District 21)Andrew Macurdy (Democratic)908-679-849999%
Assembly Member (Assembly District 21)Vinnie Kearney (Democratic)908-516-288099%
Assembly Member (Assembly District 22)Jim Kennedy (Democratic)732-943-26600.7%
Assembly Member (Assembly District 22)Linda Carter (Democratic)908-561-57570.7%

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 2199%
State Senate District 220.7%

State house districtShare of ZIP residents
Assembly District 2199%
Assembly District 220.7%

Voting precincts

13 voting precincts overlap ZIP 08812. 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:08812")

ZIP 08812 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.