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ZIP Code Database - Facts & Stats

Data Last Updated: June 1, 2023

ZIP Codes for City of Alstead, NH

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Area Code(s):603
Timezone(s):Eastern (GMT -05:00)
City Population:2,654 (More Details)
CBSA:Keene, NH
Congressional District(s):02
Land Area:707 square miles (county)
Water Area:22 square miles (county)

1 ZIP Code

Alstead, NH ZIP Code Boundaries

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Alstead, NH Covers 1 ZIP Code

ZIP CodeTypePopulation% of PopulationAliases

Alstead, NH Demographic Information *

There is no Census data for the city of ALSTEAD, NH. We have pulled information for the ZIP Code 03602 instead.
Total population**2,654
Male population1,316
Female population1,338
Median age (years)44.9
White Population2,596
Black Population3
Indian Population15
Asian Population8
Hawaiian Population0
Hispanic Population27
Median age (Male)45
Median age (Female)44.8
Total households1,103
Family households (families)739
Average household size2.41
Average family size2.86
Total housing units1,311
* Demographic data is based on 2010 Census for the City of ALSTEAD.
** City and ZIP Code Population will not be equal due to differences in their geographies.


  1. U.S. Postal Service [Last Updated: 2/1/2023],
  2. Internal Data Creation [Last Updated: 2/1/2023],
  3. U.S. Geological Survey [Updated as needed],
  4. U.S. Census [Updated Yearly],
  5. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010],