Census tract · Western Connecticut Planning Region

Census Tract 108, Western Connecticut Planning Region, Connecticut

Census Tract 108, GEOID 09190010800, in Western Connecticut Planning Region, Connecticut, entirely within Greenwich. 3,488 residents in the ACS 2020-2024 5-year estimates (±497); the 2020 Census counted 3,135.

Residents, 2020-2024

3,488

±497 (90% margin)
2020 Census count: 3,135

Median household income

$205,938

±$50,748 (90% margin)
Western Connecticut Planning Region: $128,188

Median home value

$1,183,700

±$77,744 (90% margin)
Western Connecticut Planning Region: $652,900

Median gross rent

$3,500 or more

The survey's top or bottom value; no margin is published
Western Connecticut Planning Region: $2,110

Where is Census Tract 108?

Census Tract 108 is one of 146 census tracts in Western Connecticut Planning Region, Connecticut. It covers 0.72 square miles of land, 4,372 residents per square mile in 2020. Its GEOID, 09190010800, names it uniquely (how tract numbers and GEOIDs work).

Places Census Tract 108 lies in (share of its 2020 census blocks)
PlaceShare of the tract
Greenwich100%
Cos Cob98%
Census Tract 108 (marked with a dot) in Western Connecticut Planning Region, Connecticut. Boundaries: Census Bureau 2024.
102.01102.02107111112 108 1 mi
Census Tract 108 (shaded) and the tracts that border it, numbered. Boundaries: Census Bureau 2024 cartographic boundary file, 1:500,000.

5 census tracts border Census Tract 108: Tract 102.01 ($250,000 or more), Tract 102.02 ($224,242), Tract 107 ($84,621), Tract 111 ($250,000 or more) and Tract 112 ($250,000 or more). The figure in brackets is each tract's median household income.

Whether a tract counts as low- or moderate-income for bank lending (the Community Reinvestment Act) is set by the FFIEC against its metro area's family income: look it up in the FFIEC census geocoder.

Source: 2024 Gazetteer and 2020 block assignment files, U.S. Census Bureau · Census reference files

How many people live in Census Tract 108?

The 2020-2024 American Community Survey puts Census Tract 108's population at 3,488 (±497) in 1,204 households; the 2020 Census counted 3,135 residents and 1,292 housing units.

Counts, ACS 2020-2024 5-year estimates
MeasureTract 108GreenwichWestern Connecticut Planning RegionConnecticut
Total population3,488±49763,856627,0713,624,508
Households1,204±15423,094235,3791,434,007
Average household size2.88±0.282.742.632.46
Housing units1,293±14125,613251,5301,541,822

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 Census P.L. 94-171 · Check it at data.census.gov

Who lives in Census Tract 108?

The median resident of Census Tract 108 is 35.9 years old; 32.1% are under 18 and 11.6% are 65 or older. The largest group is non-Hispanic white residents at 70.5%, then Hispanic or Latino residents (of any race) at 13.8%. 23.5% of residents were born outside the United States.

Age, origin, education, ACS 2020-2024 5-year estimates. Race groups are non-Hispanic; Hispanic includes any race.
MeasureTract 108GreenwichWestern Connecticut Planning RegionConnecticut
Median age35.9±5.243.041.541.1
Under 18 years32.1%±5.1 pts25.7%21.8%20.2%
65 years and over11.6%±4.4 pts18.7%17.4%18.5%
Hispanic or Latino (any race)13.8%±7.7 pts14.4%20.5%18.3%
White alone, not Hispanic70.5%±8.8 pts68.5%58.6%61.9%
Black or African American alone, not Hispanic6.8%±6.6 pts2.5%9.3%9.8%
Asian alone, not Hispanic7.0%±4.5 pts7.0%5.4%4.7%
American Indian and Alaska Native alone, not Hispanic0.0%±1.2 pts0.1%0.1%0.1%
Native Hawaiian and Other Pacific Islander alone, not Hispanic0.0%±1.2 pts0.0%0.0%0.0%
Two or more races, not Hispanic1.8%±1.2 pts5.5%4.8%4.3%
Some other race alone, not Hispanic0.0%±1.2 pts2.0%1.2%0.9%
Born outside the United States23.5%±7.1 pts22.5%23.8%15.7%
Speak a language other than English at home (age 5+)26.3%±6.7 pts25.1%29.7%23.4%
Civilian veterans (age 18+)0.9%±0.9 pts2.4%3.1%4.7%
With a disability5.3%±3.3 pts6.2%9.5%12.2%
No health insurance coverage4.4%±3.1 pts4.4%7.2%5.4%
High school graduate or higher (age 25+)95.7%±4.3 pts96.0%91.7%91.5%
Bachelor's degree or higher (age 25+)73.6%±8.4 pts72.5%55.5%42.5%
Graduate or professional degree (age 25+)37.6%±10.5 pts38.2%25.4%19.2%
Lived in the same house a year earlier91.2%±4.1 pts88.2%89.2%89.2%

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov

What do households in Census Tract 108 earn?

Half of the 1,204 households in Census Tract 108 earn less than $205,938 a year (±$50,748), against $128,188 across Western Connecticut Planning Region: 39th highest of the county's 143 tracts with a reliable estimate.

Income and poverty in 2024 dollars, ACS 2020-2024 5-year estimates
MeasureTract 108GreenwichWestern Connecticut Planning RegionConnecticut
Median household income$205,938±$50,748$206,130$128,188$95,781
Mean household income$272,817±$40,225$376,402$214,668$138,744
Per capita income$95,019±$13,770$137,685$82,266$55,915
People below the poverty line10.2%±7.5 pts6.1%7.5%10.0%
Children under 18 below the poverty line17.4%±16.5 pts7.1%9.1%13.0%
Households receiving SNAP2.2%±3.4 pts3.4%7.0%11.8%
Households with a computer100.0%±3.5 pts97.7%96.6%95.4%
Households with a broadband subscription100.0%±3.5 pts96.1%94.7%92.2%

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov

What does housing cost in Census Tract 108?

Owners occupy 67.5% of Census Tract 108's occupied homes and renters 32.5%. The median owner-occupied home is valued at $1,183,700 by its owner (±$77,744). The median renter pays $3,500 or more a month including utilities, and 53.5% of renters pay 35% or more of their income on rent.

Housing, ACS 2020-2024 5-year estimates
MeasureTract 108GreenwichWestern Connecticut Planning RegionConnecticut
Median home value (owner-occupied)$1,183,700±$77,744$1,695,700$652,900$366,900
Median gross rent$3,500 or more$2,674$2,110$1,488
Renters paying 35% or more of income on rent53.5%±16.0 pts46.3%43.4%43.5%
Median monthly owner costs, with a mortgage$4,000 or more$4,000 or more$3,494$2,429
Owner-occupied homes67.5%±10.4 pts70.0%66.4%66.5%
Renter-occupied homes32.5%±10.4 pts30.0%33.6%33.5%
Housing units1,293±14125,613251,5301,541,822
Single-family detached homes62.0%±8.4 pts63.7%57.3%58.6%
Mobile homes0.5%±0.7 pts0.0%0.4%0.7%
Built 2020 or later0.0%±3.2 pts1.0%1.0%0.7%
Built 2010 to 20197.1%±4.4 pts5.5%8.2%4.5%
Built 1939 or earlier35.7%±8.0 pts25.6%16.3%20.2%
Households with no vehicle0.0%±3.5 pts4.0%6.2%8.8%

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov

How do people in Census Tract 108 get to work?

43.6% of Census Tract 108's workers drive alone and 33.3% work from home. The average trip to work takes 30.8 minutes. The unemployment rate in 2020-2024 averaged 6.9%.

Work and commuting, ACS 2020-2024 5-year estimates
MeasureTract 108GreenwichWestern Connecticut Planning RegionConnecticut
In the labor force (age 16+)74.4%±5.6 pts63.2%68.3%65.9%
Unemployment rate6.9%±3.3 pts6.0%5.3%5.6%
Drove alone to work43.6%±7.9 pts50.3%59.3%68.8%
Carpooled7.5%±5.2 pts5.0%8.1%7.9%
Public transportation12.6%±5.1 pts12.3%7.0%3.3%
Walked1.8%±2.6 pts2.8%2.5%2.5%
Worked from home33.3%±7.6 pts27.9%21.5%16.0%
Mean travel time to work30.8 min±4.629.6 min30.8 min26.5 min

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov

How does Census Tract 108 compare with the other tracts in Western Connecticut Planning Region?

Among Western Connecticut Planning Region's tracts with a reliable estimate, Census Tract 108 ranks as shown below (1 = highest).

Census Tract 108's rank among the tracts of Western Connecticut Planning Region
MeasureIn Western Connecticut Planning Region
Population103rd of 145
Residents per square mile49th of 145
Median household income39th of 143
Per capita income44th of 145
Median home value27th of 144
Median gross rent1st of 128
Bachelor's degree or higher38th of 144
Median age128th of 145
Owner-occupied share89th of 143

The tracts next to it on Western Connecticut Planning Region's income ladder

Median household income, ACS 2020-2024 5-year estimates
TractRankMedian household incomeResidents
Tract 245636th$208,611±$45,731 · within the margin of this tract5,749
Tract 50237th$207,955±$54,327 · within the margin of this tract3,802
Tract 20838th$207,000±$19,904 · within the margin of this tract2,537
Tract 10839th$205,938±$50,7483,488
Tract 240240th$189,225±$19,584 · within the margin of this tract4,182
Tract 22441st$186,012±$49,545 · within the margin of this tract1,971
Tract 211142nd$185,313±$89,824 · within the margin of this tract981

"Within the margin": the two incomes differ by less than their combined 90% margins, so the survey cannot say which is higher and the ranks between them are not firm.

Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · How ranks are computed

How reliable are the figures for Census Tract 108?

2 of the 18 figures for Census Tract 108 on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.

A census tract's figures rest on a few hundred sampled households over five years, so its margins are wider than a city's. Two tracts differ only when the gap between them is larger than their combined 90% margin (the square root of the sum of the two squared margins). How to read a margin of error.

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · Check it at data.census.gov

How these figures are made: methodology and release checks · reading a margin of error · every state · corrections