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ZIP code

06831

Greenwich, CT

STANDARD

06831 covers Greenwich in Fairfield County, with 14,656 people in the ACS 2023 estimate.

Figures are for the Census ZIP Code Tabulation Area (ZCTA), which is not the same as a USPS ZIP code. A PO Box or unique ZIP may have no ZCTA and no demographics. Methodology

ACS 2023 population

14,656

Median household income

$218,785

Median home value

$1,483,500

U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: ZCTA 06831. Methodology

ZIP code map of 06831

Census ZCTA boundary for ZIP 06831 in Greenwich, Connecticut
Census ZCTA boundary for ZIP 06831 in Greenwich, Connecticut. A ZCTA is not the same as a USPS ZIP code. Boundaries: U.S. Census Bureau. Methodology · Data sources
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About ZIP code 06831

Type

STANDARD

City

Greenwich

County

Fairfield County

Timezone

America/New_York

Area codes

203, 475, 914

Land area

27.6 sq mi

Water area

0.51 sq mi

Households

5,939

Median gross rent

$3,500+

More enterprise fields

Timezone
America/New_York
Area Codes
203, 475, 914
World Region
NA
Country
US

Commercial ZIP directory · not ACS

Commercial ZIP directory population_count for ZCTA 06831. Not ACS. Methodology

People in 06831

Race

  • White12,230
  • Black or African American218
  • American Indian or Alaska Native15
  • Asian975
  • Native Hawaiian and Pacific Islander9
  • Other race564
  • Two or more races1,243

Hispanic or Latino (any race): 1,399

Age

  • Under 101,551
  • 10 to 192,110
  • 20 to 291,450
  • 30 to 391,394
  • 40 to 491,902
  • 50 to 592,413
  • 60 to 692,152
  • 70 to 791,311
  • 80 and older971

Income and housing in 06831

Poverty rate

3.7%

Median earnings

$79,623

Median household income

$218,785

Median home value

$1,483,500

Median gross rent

$3,500+

Education

  • High school graduate96.6%
  • Bachelor's degree69.5%
  • Graduate degree37.0%

Places covering 06831

Cities and places — Population overlap

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

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

Counties — Population overlap

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

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

46.4% of this ZIP is outside city limits (a real overlap row, not missing data).

Population history for 06831

IRS populationACS population
16,4598,230020052023

Hover the chart or read the table below (Year | ACS | IRS).

Population history. Year | ACS population | IRS population. ACS and IRS are separate series. Blank cells mean that source did not publish a count for the year.
YearACS populationIRS population
200514,850
200613,795
200713,971
200813,917
200913,669
201013,867
201114,22514,315
201214,52614,070
201314,69914,040
201415,11913,650
201514,90513,800
201614,57413,800
201714,83013,800
201814,62913,360
201914,58813,530
202015,24013,600
202115,17213,810
202214,68113,640
202314,656

ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.

ZIP codes near 06831

12 nearest ZIP centroids (any distance)

  1. 10504Armonk3.7 miPop 7,853 · Income $247,433
  2. 06830Greenwich4.0 miPop 24,919 · Income $146,841
  3. 06807Cos Cob4.1 miPop 7,667 · Income $194,492
  4. 10577Purchase4.4 miPop 5,901 · Income $250,000+
  5. 10604West Harrison4.7 miPop 12,192 · Income $111,131
  6. 10573Port Chester5.1 miPop 40,982 · Income $110,612
  7. 06903Stamford5.6 miPop 13,630 · Income $203,438
  8. 06878Riverside5.6 miPop 8,446 · Income $250,000+
  9. 06910Stamford5.7 miPop — · Income —
  10. 06905Stamford6.0 miPop 20,126 · Income $132,730
  11. 10594Thornwood6.1 miPop 5,512 · Income $166,417
  12. 06902Stamford6.3 miPop 72,915 · Income $92,527

ZIP centroids within 2 miles

No other ZIP codes within 2 miles of 06831, measured by Census internal-point centroids. Try a wider radius.

ZIPs within 2 miles of this place

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06831 Greenwich, CT

Looking up ZIP codes within 2 miles of 06831 Greenwich, CT, measured by centroid distance.

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ACS population

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Households

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Avg median income

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ZIP code 06831 FAQ

What city is ZIP code 06831 in?
06831 is in Greenwich, CT.
What county is 06831 in?
06831 is in Fairfield County.
What is the median household income in 06831?
The median household income in 06831 is $218,785.
Which ZIP codes are near 06831?
Use the radius tool on this page to list ZIP codes within a chosen distance of 06831.