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ZIP Code Database - Facts & Stats

Data Last Updated: March 1, 2023

ZIP Codes for City of Waterbury, CT

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Counties:NEW HAVEN, CT
Area Code(s):203, 475
Timezone(s):Eastern (GMT -05:00)
City Population:110,366 (More Details)
CBSA:New Haven-Milford, CT
Congressional District(s):01, 03, 05
Land Area:604 square miles (county)
Water Area:258 square miles (county)

18 ZIP Codes

Waterbury, CT ZIP Code Boundaries

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Waterbury, CT Covers 18 ZIP Codes

ZIP CodeTypePopulation% of PopulationAliases
06701Standard00.00%US POSTAL SERVICE, WTBY
06703P.O. Box00.00%
06704Standard25,13918.43%PLAZA, WTBY
06705Standard27,12219.88%EAST END, WOLCOTT, WTBY
06720P.O. Box00.00%WTBY
06721P.O. Box00.00%WTBY
06722P.O. Box00.00%WTBY
06723P.O. Box00.00%WTBY
06724P.O. Box00.00%WTBY
06725P.O. Box00.00%WTBY
06726P.O. Box00.00%WTBY
06749Unique00.00%UNIROYAL INC

Waterbury, CT Demographic Information *

Total population**110,366
Male population52,517
Female population57,849
Median age (years)35.2
White Population64,864
Black Population22,138
Indian Population626
Asian Population1,989
Hawaiian Population38
Hispanic Population34,446
Median age (Male)33.7
Median age (Female)36.5
Total households42,761
Family households (families)26,996
Average household size2.54
Average family size3.18
Total housing units47,991
* Demographic data is based on 2010 Census for the City of WATERBURY.
** 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],