ZIP code 08311 is in Cedarville (37% of residents) and Centre Grove (11%), in Cumberland County, New Jersey. 52% of its residents live outside city limits. It is in New Jersey's 2nd congressional district. Its state senate district is State Senate District 1; its state house district is Assembly District 01.
Members serving now (119th Congress, until January 3, 2027). Source: Members of Congress: the @unitedstates project, congress-legislators (CC0).
State legislative districts
State senate district
Share of ZIP residents
State Senate District 1
100%
State house district
Share of ZIP residents
Assembly District 01
100%
Voting precincts
2 voting precincts overlap ZIP 08311.
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:08311")
ZIP 08311 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.