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ZIP Code Database - Facts & Stats

Data Last Updated: March 1, 2023

ZIP Codes for City of Greenwich, CT

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Area Code(s):203, 475
Timezone(s):Eastern (GMT -05:00)
City Population:12,942 (More Details)
CBSA:Bridgeport-Stamford-Norwalk, CT
Congressional District(s):04
Land Area:625 square miles (county)
Water Area:212 square miles (county)

3 ZIP Codes

Greenwich, CT ZIP Code Boundaries

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Greenwich, CT Covers 3 ZIP Codes

ZIP CodeTypePopulation% of PopulationAliases
06830Standard24,02761.89%BELLE HAVEN
06836P.O. Box00.00%

Greenwich, CT Demographic Information *

Total population**12,942
Male population5,949
Female population6,993
Median age (years)42.9
White Population10,466
Black Population640
Indian Population17
Asian Population1,010
Hawaiian Population6
Hispanic Population1,803
Median age (Male)40.2
Median age (Female)45
Total households5,779
Family households (families)3,247
Average household size2.22
Average family size2.98
Total housing units6,548
* Demographic data is based on 2010 Census for the City of GREENWICH.
** 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],