Boundary Atlas

ZIP code 03809: Alton, NH

ZIP code 03809 is in Alton (13% of residents), in Belknap County, New Hampshire. 87% of its residents live outside city limits. It is in New Hampshire's 1st congressional district. Its state senate district is State Senate District 6; its state house district is State House District Belknap 07.

3,644residents (2020 Census)
40.1 sq miland area
1cities and towns
1congressional district
1voting precincts

See it on the mapAll of New Hampshire

City and county

City or townShare of ZIP residents
Alton13%

CountyShare of ZIP residents
Belknap County100%

Town or county subdivisionShare of ZIP residents
Alton town100%

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 6100%

State house districtShare of ZIP residents
State House District Belknap 07100%

Voting precincts

1 voting precinct overlap ZIP 03809. Map them, with each precinct's share of the ZIP's residents.

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ZIP 03809 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.