Data Last Updated: March 1, 2023

ZIP Codes for City of Groton, CT


    
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Counties:	NEW LONDON, CT
Area Code(s):	860, 959
Timezone(s):	Eastern (GMT -05:00)
City Population:	10,389 (More Details)
CBSA:	Norwich-New London, CT
Congressional District(s):	02
Land Area:	665 square miles (county)
Water Area:	107 square miles (county)

2 ZIP Codes

Groton, CT ZIP Code Boundaries

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Groton, CT Covers 2 ZIP Codes

ZIP Code	Type	Population	% of Population	Aliases
06340	Standard	31,242	100.00%	BOROUGH, CENTER GROTON, GROTON LONG POINT, JUPITER POINT, NOANK, POQUONOCK BRIDGE
06349	P.O. Box	0	0.00%	NAVAL SUBMARINE BASE, NAVSUB BASE, SUB BASE NEW LONDON, SUBMARINE BASE

Groton, CT Demographic Information *

Total population**	10,389
Male population	5,543
Female population	4,846
Median age (years)	30.7
White Population	7,324
Black Population	1,064
Indian Population	90
Asian Population	807
Hawaiian Population	5
Hispanic Population	1,520
Median age (Male)	28.7
Median age (Female)	34.2
Total households	4,182
Family households (families)	2,394
Average household size	2.24
Average family size	2.87
Total housing units	4,708

* Demographic data is based on 2010 Census for the City of GROTON.
** City and ZIP Code Population will not be equal due to differences in their geographies.

References

U.S. Postal Service [Last Updated: 2/1/2023], https://www.usps.com
ZIP-Codes.com Internal Data Creation [Last Updated: 2/1/2023], https://www.zip-codes.com
U.S. Geological Survey [Updated as needed], https://www.usgs.gov/
U.S. Census [Updated Yearly], https://www.census.gov
U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010], https://www.census.gov