Boundary Atlas

ZIP code 07730: Hazlet, NJ

ZIP code 07730 is in Monmouth County, New Jersey, outside any city or Census-designated place. It is in New Jersey's 6th congressional district (99%) and New Jersey's 3rd congressional district (0.6%). Its state senate district is State Senate District 13; its state house district is Assembly District 13.

17,263residents (2020 Census)
5.2 sq miland area
1cities and towns
2congressional districts
19voting precincts

See it on the mapAll of New Jersey

City and county

City or townShare of ZIP residents
Union Beach0.3%

CountyShare of ZIP residents
Monmouth County100%

Town or county subdivisionShare of ZIP residents
Hazlet township99%
Holmdel township0.6%
Union Beach borough0.3%

Congressional districts

Congressional districtShare of ZIP residents
New Jersey's 6th congressional district (NJ-06)99%
New Jersey's 3rd congressional district (NJ-03)0.6%

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.

State legislative districts

State senate districtShare of ZIP residents
State Senate District 13100%

State house districtShare of ZIP residents
Assembly District 13100%

Voting precincts

19 voting precincts overlap ZIP 07730. 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:07730")

ZIP 07730 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.