ZIP code 08512: East Windsor, NJ
ZIP code 08512 is in Cranbury (17% of residents) and Princeton Meadows (5.8%), in Mercer County (55%) and Middlesex County (45%), New Jersey. 77% of its residents live outside city limits. It is in New Jersey's 3rd congressional district (55%) and New Jersey's 12th congressional district (45%). Its state senate districts are State Senate District 14 (92%) and State Senate District 16 (7.8%); its state house districts are Assembly District 14 (92%) and Assembly District 16 (7.8%).
See it on the mapAll of New Jersey
City and county
| City or town | Share of ZIP residents |
|---|---|
| Cranbury | 17% |
| Princeton Meadows | 5.8% |
| County | Share of ZIP residents |
|---|---|
| Mercer County | 55% |
| Middlesex County | 45% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| East Windsor township | 55% |
| Cranbury township | 30% |
| South Brunswick township | 7.8% |
| Plainsboro township | 7.1% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| New Jersey's 3rd congressional district (NJ-03) | 55% |
| New Jersey's 12th congressional district (NJ-12) | 45% |
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 district | Share of ZIP residents |
|---|---|
| State Senate District 14 | 92% |
| State Senate District 16 | 7.8% |
| State house district | Share of ZIP residents |
|---|---|
| Assembly District 14 | 92% |
| Assembly District 16 | 7.8% |
Voting precincts
11 voting precincts overlap ZIP 08512. 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:08512")
ZIP 08512 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.