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zipcodes.pro — CITY/CT/GROTON

Groton ZIP codes, Connecticut

Groton, CT has 2 ZIP codes (06340 and 06349) and area codes 860 and 959. The largest is 06340.

USPS city name
2 ZIP codes
Population
9,490
Area codes
860, 959

NANPA lists no telephone rate centre for Groton itself, so these are the area codes of the nearest one, New London (3.2 miles). A town on an area-code boundary can differ from its neighbour.

Groton in numbers

About 9,490 people live in Groton, in 4,654 households, the 38th-largest of Connecticut's 213 census places. The median household income is $79,577 a year, 17% below the Connecticut median of $95,781 (US: $80,734). The median owner-occupied home is valued at $306,600 (16% below the Connecticut median), and median gross rent is $1,250 a month. The median age is 39.0; 38.8% of adults 25 and over hold a bachelor's degree or higher (42.5% across Connecticut); the average commute takes 18 minutes.

Population9,490Groton9,490
Households4,654Groton4,654
Median age39.0Groton39.0Connecticut41.1US 38.9
Median household income$79,577Groton$79,577Connecticut$95,781US $80,734
Median home value$306,600Groton$306,600Connecticut$366,900US $332,700
Median gross rent$1,250Groton$1,250Connecticut$1,488US $1,413
Bachelor's degree or higher38.8%Groton38.8%Connecticut42.5%US 35.7%
Mean commute17.5 minGroton17.5 minConnecticut26.5 minUS 26.4 min
Population density3,078 / sq miGroton3,078 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Groton city. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Groton

ZIP codes with the USPS city name Groton
ZIP City Type Population Median income Median home
06340 Groton , CT Standard 29,863 $81,792 $294,700
06349 Groton , CT No street area — — —

Map of Groton ZIP codes

0634006349

The ZIP codes of Groton, CT, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Groton

The nearest larger towns are New London (27,625 people, 1.6 mi), Westerly, RI (18,411 people, 14 mi) and Norwich (39,973 people, 15 mi).

Towns near Groton
TownPopulationDistance
New London 27,625 1.6 mi
Long Hill 4,399 1.9 mi
Waterford 3,304 3.6 mi
Conning Towers-Nautilus Park 8,460 4.4 mi
Old Mystic 3,340 5.8 mi
Mystic 4,483 6.1 mi
Niantic 3,123 6.9 mi
Oxoboxo River 2,782 8.8 mi
Pawcatuck 5,577 11.4 mi
Westerly, RI 18,411 13.9 mi
Norwich 39,973 15.4 mi
Essex Village 2,705 17.1 mi
Westbrook Center 2,501 19.7 mi
Jewett City 3,429 20.0 mi

More nearby: every ZIP code in New London County · Connecticut ZIP codes

Cite this page

zipcodes.pro. “Groton, CT ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/ct/groton

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