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ZIP Code Database - Facts & Stats

Data Last Updated: March 1, 2023

ZIP Codes for City of Thornton, NH

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Counties:GRAFTON, NH
Area Code(s):603
Timezone(s):Eastern (GMT -05:00)
City Population:2,479 (More Details)
CBSA:Lebanon, NH-VT
Congressional District(s):02
Land Area:1,709 square miles (county)
Water Area:41 square miles (county)

2 ZIP Codes

Thornton, NH ZIP Code Boundaries

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Thornton, NH Covers 2 ZIP Codes

ZIP CodeTypePopulation% of PopulationAliases
03223Standard3,42758.03%ELLSWORTH, THORNTON

Thornton, NH Demographic Information *

There is no Census data for the city of THORNTON, NH. We have pulled information for the ZIP Code 03285 instead.
Total population**2,479
Male population1,246
Female population1,233
Median age (years)45.5
White Population2,423
Black Population2
Indian Population3
Asian Population11
Hawaiian Population0
Hispanic Population21
Median age (Male)45.9
Median age (Female)45.1
Total households1,063
Family households (families)705
Average household size2.33
Average family size2.74
Total housing units1,822
* Demographic data is based on 2010 Census for the City of THORNTON.
** 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],