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ZIP Code Database - Facts & Stats

Data Last Updated: March 1, 2023

ZIP Codes for City of Derby, CT

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Counties:NEW HAVEN, CT
Area Code(s):475, 203
Timezone(s):Eastern (GMT -05:00)
City Population:12,902 (More Details)
CBSA:New Haven-Milford, CT
Congressional District(s):03
Land Area:604 square miles (county)
Water Area:258 square miles (county)

1 ZIP Code

Derby, CT ZIP Code Boundaries

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Derby, CT Covers 1 ZIP Code

ZIP CodeTypePopulation% of PopulationAliases

Derby, CT Demographic Information *

Total population**12,902
Male population6,192
Female population6,710
Median age (years)40.3
White Population10,681
Black Population980
Indian Population22
Asian Population332
Hawaiian Population1
Hispanic Population1,830
Median age (Male)38.5
Median age (Female)41.8
Total households5,388
Family households (families)3,241
Average household size2.35
Average family size3.01
Total housing units5,849
* Demographic data is based on 2010 Census for the City of DERBY.
** 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],