Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/NH/ALSTEAD

Alstead ZIP code, New Hampshire

The ZIP code for Alstead, NH is 03602, and its area code is 603.

USPS city name
1 ZIP code
Population
2,381
Area code
603

Alstead in numbers

About 2,381 people live in Alstead, in 1,024 households. The median household income is $70,455 a year, 29% below the New Hampshire median of $99,031 (US: $80,734). The median owner-occupied home is valued at $279,400 (31% below the New Hampshire median).

Population2,381Alstead2,381
Households1,024Alstead1,024
Median household income$70,455Alstead$70,455New Hampshire$99,031US $80,734
Median home value$279,400Alstead$279,400New Hampshire$402,500US $332,700

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

ZIP codes addressed as Alstead

ZIP codes with the USPS city name Alstead
ZIP City Type Population Median income Median home
03602 Alstead , NH Standard 2,381 $70,455 $279,400

Map of Alstead ZIP codes

03602

The ZIP codes of Alstead, 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 Alstead

The nearest larger towns are Bellows Falls, VT (2,891 people, 5.6 mi), Springfield, VT (4,237 people, 13 mi) and Keene (22,939 people, 13 mi).

Towns near Alstead
TownPopulationDistance
Bellows Falls, VT 2,891 5.6 mi
Springfield, VT 4,237 12.7 mi
Keene 22,939 13.1 mi
Claremont 13,078 17.0 mi
Newport 4,758 17.7 mi
Brattleboro, VT 7,657 22.1 mi
West Brattleboro, VT 2,749 23.4 mi
Peterborough 2,539 26.7 mi
Henniker 2,993 26.8 mi
Jaffrey 3,277 28.0 mi

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

Cite this page

zipcodes.pro. “Alstead, NH ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/nh/alstead

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