ZIP Code Tabulation Area · Connecticut

ZIP Code 06831: Fairfield County, CT

ZIP Code 06831 (Fairfield County, Connecticut) has an estimated 15,210 residents in 5,382 households. The median household income is $227,159, the median home value is $1,696,000 and the median gross rent is $3,500/mo+. Figures are U.S. Census Bureau American Community Survey 2020–2024 5-year estimates for the matching ZIP Code Tabulation Area.

American Community Survey 2020–2024 5-year estimates · Updated

Total population

15,210

Margin of error ±1,053

Median household income

$227,159

Margin of error ±$25,492

Median home value

$1,696,000

Margin of error ±$114,539

Median gross rent

$3,500/mo+

Margin of error not available

Median age

47.5 yrs

Margin of error ±3.0 yrs

Mean travel time to work

29.0 min

Margin of error ±5.2 min

How ZIP 06831 compares with Connecticut and the U.S.

State and national figures are the Census Bureau's own estimates for those areas from the same ACS release, not averages of ZIP codes.

Median age

ZIP 0683147.5 yrsConnecticut41.1 yrsUnited States38.9 yrs

Median household income

ZIP 06831$227,159Connecticut$95,781United States$80,734

Per capita income

ZIP 06831$142,594Connecticut$55,915United States$44,673

Poverty rate

ZIP 068314.6%Connecticut10.0%United States12.5%

Unemployment rate

ZIP 068314.2%Connecticut5.6%United States5.2%

Bachelor's degree or higher

ZIP 0683170.9%Connecticut42.5%United States35.7%

Median home value

ZIP 06831$1,696,000Connecticut$366,900United States$332,700

Median gross rent

ZIP 06831$3,500/mo+Connecticut$1,488/moUnited States$1,413/mo

Owner-occupied homes

ZIP 0683179.0%Connecticut66.5%United States65.2%

Mean travel time to work

ZIP 0683129.0 minConnecticut26.5 minUnited States26.4 min

Worked from home

ZIP 0683129.1%Connecticut16.0%United States15.1%

All figures for ZIP 06831

Each estimate has a 90% margin of error: the true value is likely within that range. * marks estimates with a large margin of error (a coefficient of variation above 30%, or ±10 percentage points or more for rates).

ZIP 06831 — ACS 2020–2024 5-year estimates
MeasureZIP 06831Margin of errorConnecticutUnited States
Total population15,210±1,0533,624,508334,922,499
Median age47.5 yrs±3.0 yrs41.1 yrs38.9 yrs
Households5,382±3161,434,007129,227,496
Median household income$227,159±$25,492$95,781$80,734
Per capita income$142,594±$17,208$55,915$44,673
Poverty rate4.6%±2.1 pts10.0%12.5%
Unemployment rate4.2%±1.8 pts5.6%5.2%
Bachelor's degree or higher70.9%±4.3 pts42.5%35.7%
Median home value$1,696,000±$114,539$366,900$332,700
Median gross rent$3,500/mo+—$1,488/mo$1,413/mo
Owner-occupied homes79.0%±3.9 pts66.5%65.2%
Mean travel time to work29.0 min±5.2 min26.5 min26.4 min
Worked from home29.1%±5.4 pts16.0%15.1%

Race and Hispanic or Latino origin

Shares of the total population by the Census Bureau's race and Hispanic or Latino origin categories (table B03002), listed in the Census Bureau's order. People self-identify on the survey.

Population by race and Hispanic or Latino origin, ZIP 06831
GroupZIP 06831ConnecticutUnited States
White alone, not Hispanic or Latino79.8%61.9%57.4%
Black or African American alone, not Hispanic or Latino0.8%9.8%11.9%
American Indian and Alaska Native alone, not Hispanic or Latino0.0%0.1%0.5%
Asian alone, not Hispanic or Latino3.8%4.7%5.9%
Native Hawaiian and Other Pacific Islander alone, not Hispanic or Latino0.0%0.0%0.2%
Some other race alone, not Hispanic or Latino0.2%0.9%0.6%
Two or more races, not Hispanic or Latino4.1%4.3%4.3%
Hispanic or Latino (of any race)11.3%18.3%19.3%

Where ZIP 06831 is

State
Connecticut
Main county
Fairfield County
Largest overlapping place
Stamford (5% of the ZIP's land area)
Land area
27.55 sq mi· about 552 people per sq mi

County and place names come from the Census Bureau's 2020 ZCTA relationship files. A ZIP code's mailing city, set by the U.S. Postal Service, can differ from these names.

Other ZIP codes in Fairfield County

06784 Fairfield County, CT06801 Bethel, CT06804 Fairfield County, CT06807 Cos Cob, CT06810 Danbury, CT06811 Danbury, CT06812 Fairfield County, CT06820 Fairfield County, CT06824 Fairfield County, CT06825 Fairfield County, CT06830 Greenwich, CT06840 Fairfield County, CT06850 Norwalk, CT06851 Norwalk, CT06853 Norwalk, CT06854 Norwalk, CT06855 Norwalk, CT06870 Old Greenwich, CT06877 Fairfield County, CT06878 Riverside, CT06880 Staples, CT06883 Fairfield County, CT06890 Southport, CT06896 Fairfield County, CT

See every ZIP code in Connecticut, or compare ZIP 06831 with another ZIP code.

Census figures describe residents as a group and cannot tell you about any one home or street. For a specific address, check local government and housing records.

About ZIP codes and ZCTAs: the Census Bureau publishes statistics for ZIP Code Tabulation Areas, which approximate USPS ZIP code delivery areas. Learn how they differ.

Sources

  • U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, detailed tables B01003, B01002, B11001, B19013, B19301, B17001, B23025, B15003, B25077, B25064, B25003, B08013, B08303, B08301, B03002 — snapshot Oct 26, 2026.
  • U.S. Census Bureau, 2020 ZCTA5 relationship files (county and place).
  • Data: U.S. Census Bureau, American Community Survey 5-year estimates (detailed tables) and 2020 Census ZCTA relationship files. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau. These agencies do not endorse OpenZIP.