Alton, NH ZIP Codes, Coordinates & Counties
Alton, New Hampshire has 1 ZIP code in Belknap county. The approximate center of Alton is 43.454, -71.212. Alton has about 9,582 known street addresses.
ZIP codes in Alton, NH
| ZIP Code | County | Latitude | Longitude |
|---|---|---|---|
| 03809 | Belknap | 43.454 | -71.212 |
Counties Alton spans
Belknap
Most common streets in Alton
Dudley, Chamberlain, Andreson, Damon, Main, Emerson, Water, Spruce, Stage Coach, Cooke
Frequently asked questions
What ZIP codes are in Alton, NH?
Alton, New Hampshire has 1 ZIP code, ranging from 03809 to 03809. The full list, with each ZIP's county and coordinates, is in the table on this page.
What county is Alton, NH in?
Alton is in Belknap county.
What are the latitude and longitude of Alton, NH?
The approximate center of Alton, New Hampshire is latitude 43.454, longitude -71.212. Coordinates for each ZIP code are listed in the table above.
How many ZIP codes does Alton, NH have?
Alton has 1 ZIP code.
How many addresses are in Alton, NH?
Alton, New Hampshire has about 9,582 known street addresses in the sthan.io US address database.
What are the most common streets in Alton, NH?
Some of the most common street names in Alton are Dudley, Chamberlain, Andreson, Damon, Main, Emerson.
What cities are near Alton, NH?
Cities near Alton include New Durham (4 mi), Alton Bay (6 mi), Gilmanton Iron Works (6 mi), Center Barnstead (7 mi), Union (8 mi).
Cities near Alton
New Durham, NH (4 mi) Alton Bay, NH (6 mi) Gilmanton Iron Works, NH (6 mi) Center Barnstead, NH (7 mi) Union, NH (8 mi) Barnstead, NH (9 mi) Farmington, NH (9 mi) Gilmanton, NH (9 mi)
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View the API →Last updated: June 2026 · Data: sthan.io US address database