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zipcodes.pro — CITY/CT/COS-COB

Cos Cob ZIP code, Connecticut

The ZIP code for Cos Cob, CT is 06807, and its area codes are 203 and 475.

USPS city name
1 ZIP code
Overlapping the city
1 more
Population
7,546
Area codes
203, 475

NANPA lists no telephone rate centre for Cos Cob itself, so these are the area codes of the nearest one, Stamford (2.1 miles). A town on an area-code boundary can differ from its neighbour.

Mail addressed to Cos Cob uses the ZIP code above. 1 more ZIP code covers part of the city but is addressed as somewhere else; they are listed separately below.

Cos Cob in numbers

About 7,546 people live in Cos Cob, in 2,747 households, the 46th-largest of Connecticut's 213 census places. The median household income is $190,481 a year, 99% above the Connecticut median of $95,781 (US: $80,734). The median owner-occupied home is valued at $1,210,400 (3.3 times the Connecticut median), and median gross rent is $3,067 a month. The median age is 39.6; 70.2% of adults 25 and over hold a bachelor's degree or higher (42.5% across Connecticut); the average commute takes 29 minutes.

Population7,546Cos Cob7,546
Households2,747Cos Cob2,747
Median age39.6Cos Cob39.6Connecticut41.1US 38.9
Median household income$190,481Cos Cob$190,481Connecticut$95,781US $80,734
Median home value$1,210,400Cos Cob$1,210,400Connecticut$366,900US $332,700
Median gross rent$3,067Cos Cob$3,067Connecticut$1,488US $1,413
Bachelor's degree or higher70.2%Cos Cob70.2%Connecticut42.5%US 35.7%
Mean commute28.9 minCos Cob28.9 minConnecticut26.5 minUS 26.4 min
Population density3,507 / sq miCos Cob3,507 / sq mi

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

ZIP codes addressed as Cos Cob

ZIP codes with the USPS city name Cos Cob
ZIP City Type Population Median income Median home
06807 Cos Cob , CT Standard 7,650 $192,115 $1,443,200

Other ZIP codes overlapping Cos Cob

These ZIP codes cover part of Cos Cob but are addressed as somewhere else.

ZIP codes overlapping Cos Cob
ZIP City Type Population Median income Median home
06830 Greenwich , CT Standard 24,880 $146,654 $1,660,700

Map of Cos Cob ZIP codes

06807

The ZIP codes of Cos Cob, 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 Cos Cob

The nearest larger towns are Riverside (8,954 people, 1.3 mi), Greenwich (14,792 people, 2.3 mi) and Stamford (137,144 people, 3.2 mi).

Towns near Cos Cob
TownPopulationDistance
Riverside 8,954 1.3 mi
Greenwich 14,792 2.3 mi
Old Greenwich 6,936 2.3 mi
Stamford 137,144 3.2 mi
Glenville 2,656 3.9 mi
Pemberwick 3,665 4.0 mi
Byram 4,633 4.6 mi
Port Chester, NY 31,102 5.0 mi
Rye Brook, NY 9,900 5.1 mi
Noroton Heights 2,782 5.2 mi
Noroton 5,539 5.3 mi
Tokeneke 2,951 6.7 mi
Harrison, NY 29,961 6.9 mi
New Canaan 6,896 8.3 mi

More nearby: every ZIP code in Fairfield County · Connecticut ZIP codes

Cite this page

zipcodes.pro. “Cos Cob, CT ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/ct/cos-cob

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