Colchester, CT ZIP codes

1 ZIP/ZCTA intersecting this Census place (CDP) in New London County.

ACS 2023 population

4,624

Median household income

$79,685

Median home value

$280,500

U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: Census place Colchester (GEOID 0915840). Methodology

Combined population of ZIP/ZCTAs intersecting this place: 16,075 (1 ZIPs).

Combined population of ZIP/ZCTAs intersecting this place. Each intersecting ZIP contributes its full ZCTA population; overlap percents are descriptive only. This is not the Census place ACS headline above. Methodology

Map of Colchester, CT

Census place boundary and intersecting ZIP Code Tabulation Areas for Colchester, CT — Census place boundary for Colchester, CT. Intersecting ZCTAs may extend past the city limit. Not a USPS city limit. Boundaries: U.S. Census Bureau. Methodology · Data sources

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ZIP/ZCTA overlap with Colchester

Population overlap

Share of each ZIP/ZCTA’s population located within Colchester, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.

0641528.8%
USPS primary city

ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology

ZIP codes intersecting Colchester

ZIP	City	County	Population	Income
06415	Colchester	New London County	16,075	$119,656

USPS associates these ZIPs with Colchester

These codes list Colchester as a primary or acceptable city. They are not used for the ACS headline.

ZIP	City	County	Population	Income
06420	Salem	New London County	4,323	$118,839