Skip to main content

06870 ZIP Code

Old Greenwich, Connecticut

December 19, 2025
ZIP Code:06870
City/Town:Old Greenwich
County:Western Connecticut
State:Connecticut
ZIP Type:Standard
Population:8,096
Median Household Income:$215,000
Per Capita Income:$110,295
Total Housing Units:2,873
Median Home Value:$1,566,400
Land Area:2.3 sq miles
5.9 sq km
Water Area:1.5 sq miles
3.8 sq km
Coordinates:41.0244, -73.5712

Population Information (06870 zip code)

#%US
Total Population:8,096----
Male:3,85647.6%49.6%
Female:4,24052.4%50.4%
Median Age:40.5 yrs--38.5 yrs
Under 5 years:5827.2%5.7%
5 to 9 years:1,01212.5%6.0%
10 to 14 years:6808.4%6.5%
15 to 19 years:5306.5%6.6%
20 to 24 years:3864.8%6.7%
25 to 34 years:1642.0%13.7%
35 to 44 years:1,46018.0%12.9%
45 to 54 years:1,17214.5%12.4%
55 to 59 years:6558.1%6.5%
60 to 64 years:3304.1%6.4%
65 to 74 years:6427.9%9.7%
75 to 84 years:2993.7%4.8%
85 years and over:1842.3%2.0%

Housing Information (06870 zip code)

#%US
Median home value:$1,566,400--$281,900
Median rooms:7.9--5.5
Median rent:$3,501 / mo.--$1,268 / mo.
Total housing units:2,873----
Occupied housing units:2,73495.2%38.0%
Vacant housing units:1394.8%4.6%
Housing tenure:------
Owner-occupied:2,21080.8%64.8%
Renter-occupied:52419.2%35.2%

Educational Attainment (06870 zip code)

#%US
Population 25 years and over:4,906----
Less than 9th grade:150.3%4.7%
9th to 12th grade, no diploma:701.4%6.1%
High school graduate:4238.6%26.4%
Some college, no degree:2024.1%19.7%
Associate degree:1122.3%8.7%
Bachelor's degree:1,89838.7%20.9%
Graduate or professional degree:2,18644.6%13.7%
Percent high school graduate or higher:--98.3%89.1%
Percent bachelor's degree or higher:--83.2%34.3%

Income Information (06870 zip code)

ValueUS
Median household income:$215,000 / yr.$75,149 / yr.
Mean household income:$339,992 / yr.$105,833 / yr.
Median family income:$250,001 / yr.$92,646 / yr.
Per capita income:$110,295 / yr.$41,261 / yr.

Employment (06870 zip code)

#%US
In labor force:3,625--63.5%
Employed:3,45096.1%96.4%
Unemployed:1403.9%5.3%
Not in labor force:2,040----
Class of Worker:------
Private wage and salary:2,82581.9%79.7%
Government workers:1865.4%14.2%
Self-employed:43912.7%5.9%
Unpaid family workers:00.0%0.1%

Race & Ethnicity (06870 zip code)

#%US
Race (one race):------
White:6,48580.1%61.6%
Black or African American:1962.4%12.4%
American Indian/Alaska Native:00.0%1.1%
Asian:6678.2%6.0%
Native Hawaiian/Pacific Islander:00.0%0.2%
Some other race:971.2%8.4%
Two or more races:6518.0%10.2%
Hispanic or Latino (any race):3414.2%18.7%
Mexican:5406.7%11.2%
Puerto Rican:200.2%1.8%
Cuban:1571.9%0.7%
Other Hispanic or Latino:00.0%5.0%
Not Hispanic or Latino:3634.5%81.1%

Income Distribution (06870 zip code)

Household IncomeHouseholds%US
Less than $10,000:853.1%4.9%
$10,000 to $14,999:250.9%3.8%
$15,000 to $24,999:802.9%7.0%
$25,000 to $34,999:582.1%7.4%
$35,000 to $49,999:1023.7%10.7%
$50,000 to $74,999:1053.8%16.1%
$75,000 to $99,999:2218.1%12.8%
$100,000 to $149,999:36813.5%17.1%
$150,000 to $199,999:2288.3%8.8%
$200,000 or more:1,46253.5%11.4%

Commute to Work (06870 zip code)

Commute MethodWorkers%US
Drove alone:1,57745.7%67.8%
Carpooled:411.2%8.7%
Public transportation:73821.4%4.2%
Walked:160.5%2.5%
Other means:80.2%0.9%
Worked from home:98828.6%13.8%
Mean travel time to work:35.3 min--26.7 min

Industry (06870 zip code)

Industry SectorWorkers%US
Agriculture, forestry, fishing, mining:110.3%1.6%
Construction:962.8%6.9%
Manufacturing:1484.3%10.0%
Wholesale trade:1043.0%2.4%
Retail trade:1885.4%11.0%
Transportation, warehousing, utilities:802.3%5.8%
Information:2497.2%1.9%
Finance, insurance, real estate:93127.0%6.7%
Professional, scientific, management:63818.5%12.1%
Education, health care, social services:46413.4%23.3%
Arts, entertainment, food services:3239.4%9.0%
Other services:1534.4%4.7%
Public administration:651.9%4.7%

Poverty Status (06870 zip code)

#%US
Poverty Rate:--3.3%8.8%
All people below poverty level:------
Under 18 years:----16.3%
18 to 64 years:----11.0%
65 years and over:----10.3%

Health Insurance (06870 zip code)

#%US
With health insurance:7,89597.5%91.3%
Private health insurance:7,01886.7%67.6%
Public health coverage:1,57419.4%35.9%
Without health insurance:1662.1%8.7%

Benefits & Assistance (06870 zip code)

Households with:#%US
Earnings:2,26082.7%77.4%
Social Security income:69825.5%31.0%
Retirement income:55020.1%21.8%
Supplemental Security Income (SSI):592.2%4.5%
Cash public assistance income:00.0%1.8%
SNAP (food stamps) benefits:451.6%11.4%

Housing Types (06870 zip code)

Structure TypeUnits%US
1-unit, detached:2,15074.8%61.4%
1-unit, attached:1585.5%6.1%
2 units:572.0%3.4%
3 or 4 units:90.3%4.3%
5 to 9 units:40.1%4.6%
10 to 19 units:732.5%4.3%
20 or more units:42214.7%9.9%
Mobile home:00.0%5.8%
Boat, RV, van, etc.:00.0%0.1%

Year Structure Built (06870 zip code)

Year BuiltUnits%US
Built 2020 or later:160.6%0.6%
Built 2010 to 2019:1816.3%8.2%
Built 2000 to 2009:1575.5%13.5%
Built 1990 to 1999:34912.1%13.2%
Built 1980 to 1989:2839.9%13.2%
Built 1970 to 1979:36012.5%14.6%
Built 1960 to 1969:1595.5%10.2%
Built 1950 to 1959:44215.4%9.9%
Built 1940 to 1949:2468.6%4.6%
Built 1939 or earlier:68023.7%12.0%

Bedrooms (06870 zip code)

Number of BedroomsUnits%US
No bedroom (studio):351.2%2.4%
1 bedroom:1966.8%3.0%
2 bedrooms:33411.6%9.1%
3 bedrooms:64822.6%15.9%
4 bedrooms:93432.5%18.8%
5 or more bedrooms:72625.3%17.6%

Heating Fuel (06870 zip code)

Fuel TypeUnits%US
Utility gas:1,93370.7%47.1%
Bottled, tank, or LP gas:692.5%4.9%
Electricity:50618.5%40.2%
Fuel oil, kerosene, etc.:2037.4%4.2%
Coal or coke:00.0%0.1%
Wood:80.3%1.5%
Solar energy:00.0%0.1%
Other fuel:70.3%0.5%
No fuel used:80.3%0.2%

Vehicles Available (06870 zip code)

VehiclesHouseholds%US
No vehicle available:823.0%8.3%
1 vehicle available:70925.9%32.6%
2 vehicles available:1,35449.5%37.0%
3 or more vehicles available:58921.5%22.1%

Home Value Distribution (06870 zip code)

Value RangeOwner Units%US
Less than $50,000:251.1%5.7%
$50,000 to $99,999:411.9%7.8%
$100,000 to $149,999:100.5%9.2%
$150,000 to $199,999:00.0%10.8%
$200,000 to $299,999:361.6%19.9%
$300,000 to $499,999:1326.0%24.1%
$500,000 to $999,999:28813.0%17.0%
$1,000,000 or more:1,67875.9%5.6%

Housing Costs (06870 zip code)

ValueUS
Median owner costs (with mortgage):$4,001 / mo.$1,828 / mo.
Median owner costs (no mortgage):$1,501 / mo.$584 / mo.
Median gross rent:$3,501 / mo.$1,268 / mo.
Average household size (owner-occupied):2.992.53
Average household size (renter-occupied):2.812.38

Households (06870 zip code)

#%US
Total households:2,734----
Married-couple households:1,76764.6%47.5%
Cohabiting couple households:1,09340.0%7.0%
Male householder, no spouse:35112.8%5.4%
Female householder, no spouse:54319.9%12.7%
Householder living alone:1,25245.8%28.6%
65 years and over living alone:80929.6%11.8%
Average household size:2.96--2.53
Average family size:3.55----

Marital Status (06870 zip code)

Population 15 years and over#%US
Total:2,676----
Never married:63023.5%37.0%
Now married:1,91871.7%49.5%
Separated:240.9%1.5%
Widowed:1043.9%2.6%
Divorced:70526.3%9.3%

School Enrollment (06870 zip code)

Population 3 years and over#%US
Enrolled in school:2,677----
Nursery school, preschool:33412.5%5.8%
Kindergarten:2629.8%5.0%
Elementary school (grades 1-8):1,26647.3%40.5%
High school (grades 9-12):55620.8%21.4%
College or graduate school:2599.7%27.3%

Veterans & Disability (06870 zip code)

#%US
Civilian population 18 years and over:5,419----
Veterans:1292.4%6.3%
Civilian noninstitutionalized population:8,061----
With a disability:3794.7%13.4%
Under 18 with disability:5013.2%5.8%
18 to 64 with disability:12833.8%10.4%
65 and over with disability:20153.0%33.4%

Mobility (Residence 1 Year Ago) (06870 zip code)

Population 1 year and over#%US
Same house:7,08187.5%86.9%
Different house:83710.3%13.1%
Same county:52963.2%7.0%
Different county:29435.1%3.2%
Different state:29234.9%2.5%
Abroad:141.7%0.4%

Place of Birth (06870 zip code)

#%US
Native born:6,61181.7%86.2%
Foreign born:2503.1%13.9%
Naturalized citizen:1,485594.0%52.7%
Not a citizen:1,485594.0%47.3%
Foreign-born by region:------
Europe:1,485594.0%10.5%
Asia:428171.2%31.3%
Africa:16465.6%5.5%
Oceania:4618.4%0.5%
Latin America:272108.8%50.0%
Northern America:208.0%2.2%

Language Spoken at Home (06870 zip code)

Population 5 years and over#%US
Total:7,514----
English only:6,26383.4%78.3%
Language other than English:1,25116.6%21.5%
By language:------
Spanish:3164.2%13.3%
Other Indo-European languages:4926.5%3.5%
Asian/Pacific Island languages:3935.2%3.5%
Other languages:500.7%1.0%

Computers & Internet (06870 zip code)

Households%US
Households with a computer:2,734100.0%93.1%
Households with broadband internet:2,68198.1%89.4%