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ZIP Code Database - Facts & Stats

Data Last Updated: March 1, 2023

ZIP Codes for City of Plymouth, NH

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Counties:GRAFTON, NH
Area Code(s):603
Timezone(s):Eastern (GMT -05:00)
City Population:4,456 (More Details)
CBSA:Lebanon, NH-VT
Congressional District(s):02
Land Area:1,709 square miles (county)
Water Area:41 square miles (county)

1 ZIP Code

Plymouth, NH ZIP Code Boundaries

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Plymouth, NH Covers 1 ZIP Code

ZIP CodeTypePopulation% of PopulationAliases

Plymouth, NH Demographic Information *

Total population**4,456
Male population2,393
Female population2,063
Median age (years)20.8
White Population4,296
Black Population34
Indian Population10
Asian Population48
Hawaiian Population0
Hispanic Population78
Median age (Male)20.9
Median age (Female)20.7
Total households836
Family households (families)321
Average household size2.61
Average family size2.95
Total housing units910
* Demographic data is based on 2010 Census for the City of PLYMOUTH.
** 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],