Boundary Atlas

ZIP code 03280: Washington, NH

ZIP code 03280 is in Sullivan County (100%) and Cheshire County (0.5%), New Hampshire, outside any city or Census-designated place. It is in New Hampshire's 2nd congressional district. Its state senate district is State Senate District 8; its state house districts are State House District Sullivan 04 (100%) and State House District Cheshire 09 (0.5%).

1,195residents (2020 Census)
45.2 sq miland area
0cities and towns
1congressional district
2voting precincts

See it on the mapAll of New Hampshire

City and county

Outside any city or Census-designated place.


CountyShare of ZIP residents
Sullivan County100%
Cheshire County0.5%

Town or county subdivisionShare of ZIP residents
Washington town100%
Stoddard town0.5%

Congressional district

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

State legislative districts

State senate districtShare of ZIP residents
State Senate District 8100%

State house districtShare of ZIP residents
State House District Sullivan 04100%
State House District Cheshire 090.5%

Voting precincts

2 voting precincts overlap ZIP 03280. 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:03280")

ZIP 03280 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.