06807 ZIP Code — Cos Cob, CT

Fairfield County, Connecticut

ZIP code 06807 is located in Cos Cob, Connecticut, within Fairfield County. It covers approximately 3.28 square miles and serves a population of 7,641 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 203/475.

About ZIP code 06807

The housing stock consists of a mix of housing types. Most homes were built in the pre-1940, giving the area an established character. Median home value is $1,235,700. Owner-occupancy sits near the national average at 68%.

The gap between median ($190,515) and mean household income suggests income inequality — a small number of higher earners pull the average up. The poverty rate of 6% is below the national average.

The dominant occupation class is management, business, and professional, with professional and management as the leading industry. The average commute of 28 minutes is near the national average. Remote work is prevalent — 24% of workers work from home.

Educational attainment is high — 71% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Overall, ZIP code 06807 reflects a community defined by a highly educated population and a high rate of remote workers.

7,641

population

3.28

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

06807 ZIP code map

Cities in ZIP code 06807

Below are the cities the US Postal Service accepts for ZIP code 06807. Using any city not on this list may result in mail delivery delays.

City	Status
Cos Cob	Preferred

Nearby ZIP codes

06878 Riverside (1.7 mi) 06910 Stamford (1.9 mi) 06870 Old Greenwich (2.1 mi) 06830 Greenwich (2.3 mi) 06902 Stamford (2.3 mi) 06914 Stamford (2.7 mi) 06913 Stamford (2.7 mi) 06927 Stamford (2.7 mi) 06926 Stamford (2.7 mi) 06901 Stamford (2.7 mi) 06905 Stamford (3.1 mi) 06906 Stamford (3.6 mi)

Demographics updated 05/2026

Population
Total population	7,641
Population density	2,330 / sq mi
State FIPS	09
County FIPS	001

Geography
Land area	3.28 sq mi
Water area	0.13 sq mi
Latitude	41.0596
Longitude	-73.5901
Timezone	Eastern (ET)
Area code	203/475

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	21.3%	27.3%	32.0%
$50k – $100k	20.8%	23.7%	27.7%
$100k – $200k	18.5%	26.8%	27.1%
Over $200k	39.4%	22.2%	13.2%

Demographics & statistics

7,641

Population

2,330

People per sq mi

39.5

Median age

$190,515

Median household income

$104,571

Per capita income

$1,235,700

Median home value

$2,448

Median monthly rent

68.2%

Home ownership

5.6%

Poverty rate

6.0%

Unemployment

1,990

Housing units

70.7%

Bachelor's or higher

Age distribution

Male Female

323

Under 5

329

267

5–9

273

271

10–14

277

338

15–19

345

152

20–24

155

254

25–34

259

554

35–44

565

579

45–54

592

300

55–59

307

208

60–64

213

295

65–74

302

172

75–84

176

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	2,276	29.8%
18 and over	5,365	70.2%
65 and over	1,080	14.1%
Median age	39.5 years

Race & ethnicity

White 59.3%

Hispanic or Latino 13.7%

Two or more races 11.5%

Other race 5.9%

Asian 5.3%

Black or African American 3.9%

American Indian / Alaska Native 0.3%

Group	Count	%
White	5,251	59.3%
Hispanic or Latino	1,212	13.7%
Two or more races	1,022	11.5%
Other race	525	5.9%
Asian	472	5.3%
Black or African American	347	3.9%
American Indian / Alaska Native	24	0.3%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	21.3%	27.3%	32.0%
$50k – $100k	20.8%	23.7%	27.7%
$100k – $200k	18.5%	26.8%	27.1%
Over $200k	39.4%	22.2%	13.2%

Under $10k 1.5%

$10k–$15k 1.5%

$15k–$25k 0.9%

$25k–$35k 6.0%

$35k–$50k 3.4%

$50k–$75k 8.7%

$75k–$100k 6.6%

$100k–$150k 15.4%

$150k–$200k 7.0%

$200k+ 48.9%

Range	% of households
Under $10k	1.5%
$10k–$15k	1.5%
$15k–$25k	0.9%
$25k–$35k	6.0%
$35k–$50k	3.4%
$50k–$75k	8.7%
$75k–$100k	6.6%
$100k–$150k	15.4%
$150k–$200k	7.0%
$200k+	48.9%
Median income	$190,515

Housing

Home values

Under $50k 0.5%

$150k–$200k 1.7%

$300k–$500k 0.9%

$500k–$1M 33.6%

$1M+ 63.3%

Housing overview

Metric	Value
Median home value	$1,235,700
Median rent / month	$2,448
Owner occupied	68.2%
Renter occupied	31.8%
Vacant	4.6%
Single-family detached	61.0%
Large apartment buildings	2.1%
Mobile homes	0.2%
Median rooms	6.7
Avg household size (owned)	2.88

Year built

Era	%
2020 or later	0.0%
2010–2019	7.5%
2000–2009	7.4%
1990–1999	4.7%
1980–1989	8.7%
1970–1979	10.8%
1960–1969	16.6%
1950–1959	14.4%
1940–1949	3.6%
1939 or earlier	26.4%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	5.8%
2 bedrooms	17.9%
3 bedrooms	36.0%
4 bedrooms	27.7%
5+ bedrooms	12.6%

Vehicles per household

Vehicles	% of households
No vehicle	3.4%
1 vehicle	25.1%
2 vehicles	50.6%
3 or more	20.8%

Heating fuel

Fuel type	%
Utility gas	73.2%
Electricity	8.4%
Propane / LP gas	2.1%
Fuel oil	14.9%
Wood	1.4%

Households & families

Household type	Count	%
Married-couple family	1,864	68.4%
Cohabiting couple	72	2.6%
Male householder, no spouse	336	12.3%
Female householder, no spouse	453	16.6%
Households with children under 18	1,307	48.0%
Households with seniors (65+)	685	25.1%
Average household size	2.79

Marital status

Status	Male	Female
Never married	25.2%	25.7%
Married	68.1%	60.7%
Separated	0.0%	1.1%
Widowed	0.0%	4.2%
Divorced	6.7%	8.3%

Education

Less than 9th grade 1.7%

Some HS, no diploma 3.0%

HS graduate 16.5%

Some college, no degree 3.4%

Associate's degree 4.7%

Bachelor's degree 34.5%

Graduate / professional 36.2%

Metric	%
HS diploma or higher	95.3%
Bachelor's or higher	70.7%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	192	8.9%
Kindergarten	188	8.7%
Elementary school	864	39.9%
High school	665	30.7%
College / grad school	259	11.9%

Employment

Industry of employment

Finance & real estate 23.8%

Professional & management 19.7%

Education & healthcare 16.8%

Construction 7.0%

Manufacturing 6.6%

Arts, food & hospitality 6.3%

Information 5.5%

Retail trade 5.0%

Other services 4.8%

Transportation & utilities 3.1%

Public administration 1.1%

Wholesale trade 0.5%

Occupation

Category	%
Management, business & arts	55.6%
Service	12.9%
Sales & office	20.1%
Natural resources & construction	6.7%
Production & transportation	4.6%

Employment type

Type	%
Private sector	83.3%
Government	7.5%
Self-employed	9.2%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	58.0%
Carpool	3.8%
Public transit	10.0%
Walk	1.9%
Work from home	24.1%
Other means	2.1%
Avg commute (minutes)	28.1

Poverty

All people 5.6%

Under 18 years 6.6%

18 and over 5.1%

Married-couple families 1.3%

Female-led households 15.0%

Income support

Source	% of households
Social Security	23.6%
Retirement income	16.6%
Supplemental Security	1.1%
Cash public assistance	0.5%
Food stamps / SNAP	0.9%

Health indicators

Condition	%
Obesity	20.4%
High blood pressure	26.1%
High cholesterol	31.7%
Diabetes	6.4%
Heart disease	4.7%
Stroke	2.0%
Asthma	8.1%
Arthritis	19.8%
Kidney disease	2.2%
Pulmonary disease	3.9%
Cancer	7.3%

Behavior / access	%
Smoking	8.2%
Binge drinking	15.9%
No physical activity	13.1%
Less than 7 hrs sleep	28.3%
Depression	16.2%
Fair or poor health	7.4%
Poor mental health	10.7%
Poor physical health	6.8%
No health insurance	7.2%
Visited doctor (checkup)	75.0%
Visited dentist	78.9%
Cholesterol screening	94.5%
Teeth loss	5.6%

Veterans & disability

Veterans	Count	%
Civilian veterans	197	3.7%

Disability	%
Any disability	7.8%
Under 18	5.8%
18–64 years	5.3%
65 and over	22.1%

Health insurance coverage

Type	%
Private insurance	79.1%
Public insurance	24.6%
No insurance	2.8%
Uninsured under 19	1.2%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	6,989	91.5%
Spanish	600	8.6%
Other Indo-European	122	1.7%
Asian & Pacific Islander	303	4.3%
Other languages	175	2.5%

Place of birth & citizenship

Origin	Count	%
Native born (US)	5,782	75.7%
Born in same state	5,764	75.4%
Born in different state	2,579	33.8%
Foreign born	18	0.2%
Naturalized citizen	1,859	24.3%
Not a US citizen	1,055	56.8%

Ancestry

Ancestry	Count	%
Italian	1,134	14.8%
French	829	10.8%
Arab	444	5.8%
German	53	0.7%
Polish	50	0.7%

Ancestry	Count	%
Irish	34	0.4%
English	33	0.4%
Dutch	31	0.4%
Norwegian	19	0.2%

Technology access

Metric	% of households
Computer access	35.7%
Internet access	98.8%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 06807

What city is ZIP code 06807 in?

ZIP code 06807 is primarily assigned to Cos Cob, Connecticut.

What county is ZIP code 06807 in?

ZIP code 06807 falls within Fairfield County, Connecticut.

How educated is the population of ZIP code 06807?

71% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

What is the median household income in ZIP code 06807?

The median household income in ZIP code 06807 is $190,515, above the national median of ~$75,000.

What is the typical home value in ZIP code 06807?

The median home value in ZIP code 06807 is $1,235,700.

What is the population of ZIP code 06807?

ZIP code 06807 has an estimated population of 7,641 residents, with a density of 2,333 people per square mile.

What timezone is ZIP code 06807 in?

ZIP code 06807 observes the EST timezone.