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zipcodes.pro — CITY/NH/ALTON-BAY

Alton Bay ZIP code, New Hampshire

The ZIP code for Alton Bay, NH is 03810, and its area code is 603.

USPS city name
1 ZIP code
Population
2,314
Area code
603

NANPA lists no telephone rate centre for Alton Bay itself, so these are the area codes of the nearest one, Alton (5.8 miles). A town on an area-code boundary can differ from its neighbour.

Alton Bay in numbers

About 2,314 people live in Alton Bay, in 826 households. The median household income is $148,261 a year, 50% above the New Hampshire median of $99,031 (US: $80,734). The median owner-occupied home is valued at $569,200 (41% above the New Hampshire median).

Population2,314Alton Bay2,314
Households826Alton Bay826
Median household income$148,261Alton Bay$148,261New Hampshire$99,031US $80,734
Median home value$569,200Alton Bay$569,200New Hampshire$402,500US $332,700

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the ZIP code addressed as Alton Bay. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Alton Bay

ZIP codes with the USPS city name Alton Bay
ZIP City Type Population Median income Median home
03810 Alton Bay , NH Standard 2,314 $148,261 $569,200

Map of Alton Bay ZIP codes

03810

The ZIP codes of Alton Bay, NH, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Alton Bay

The nearest larger towns are Wolfeboro (2,531 people, 7.0 mi), Laconia (17,085 people, 10 mi) and Farmington (3,924 people, 14 mi).

Towns near Alton Bay
TownPopulationDistance
Wolfeboro 2,531 7.0 mi
Laconia 17,085 10.4 mi
Farmington 3,924 13.6 mi
Meredith 2,617 14.0 mi
Tilton Northfield 3,101 15.7 mi
Franklin 8,799 19.2 mi
Rochester 33,144 21.8 mi
Concord 44,375 23.5 mi
Plymouth 4,969 25.7 mi
Somersworth 12,111 27.2 mi
Suncook 5,432 27.2 mi
Sanford, ME 22,247 27.6 mi
Lake Arrowhead, ME 3,322 29.5 mi

More nearby: every ZIP code in Belknap County · New Hampshire ZIP codes

Cite this page

zipcodes.pro. “Alton Bay, NH ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/nh/alton-bay

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