Boundary Atlas

ZIP code 08340: Milmay, NJ

ZIP code 08340 is in Milmay (94% of residents), in Atlantic County (65%) and Cumberland County (35%), New Jersey. 6.5% of its residents live outside city limits. It is in New Jersey's 2nd congressional district. Its state senate districts are State Senate District 4 (65%) and State Senate District 1 (35%); its state house districts are Assembly District 04 (65%) and Assembly District 01 (35%).

862residents (2020 Census)
27.8 sq miland area
1cities and towns
1congressional district
3voting precincts

See it on the mapAll of New Jersey

City and county

City or townShare of ZIP residents
Milmay94%

CountyShare of ZIP residents
Atlantic County65%
Cumberland County35%

Town or county subdivisionShare of ZIP residents
Buena Vista township65%
Maurice River township35%

Congressional district

Congressional districtShare of ZIP residents
New Jersey's 2nd congressional district (NJ-02)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 465%
State Senate District 135%

State house districtShare of ZIP residents
Assembly District 0465%
Assembly District 0135%

Voting precincts

3 voting precincts overlap ZIP 08340. 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:08340")

ZIP 08340 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.