Boundary Atlas

ZIP code 03036: Chester, NH

ZIP code 03036 is in Rockingham County, New Hampshire, outside any city or Census-designated place. It is in New Hampshire's 1st congressional district. Its state senate districts are State Senate District 23 (99%) and State Senate District 19 (0.5%); its state house districts are State House District Rockingham 03 (99%) and State House District Rockingham 13 (0.5%).

5,251residents (2020 Census)
26.0 sq miland area
1cities and towns
1congressional district
2voting precincts

See it on the mapAll of New Hampshire

City and county

City or townShare of ZIP residents
Derry0.5%

CountyShare of ZIP residents
Rockingham County100%

Town or county subdivisionShare of ZIP residents
Chester town99%
Derry town0.5%

Congressional district

Congressional districtShare of ZIP residents
New Hampshire's 1st congressional district (NH-01)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 2399%
State Senate District 190.5%

State house districtShare of ZIP residents
State House District Rockingham 0399%
State House District Rockingham 130.5%

Voting precincts

2 voting precincts overlap ZIP 03036. 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:03036")

ZIP 03036 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.