Census tract · Western Connecticut Planning Region
Census Tract 110, Western Connecticut Planning Region, Connecticut
Census Tract 110, GEOID 09190011000, in Western Connecticut Planning Region, Connecticut, entirely within Old Greenwich and Greenwich. 5,267 residents in the ACS 2020-2024 5-year estimates (±584); the 2020 Census counted 5,477.
Residents, 2020-2024
5,267
±584 (90% margin)
2020 Census count: 5,477
Median household income
$250,000 or more
The survey's top or bottom value; no margin is published
Western Connecticut Planning Region: $128,188
Median home value
$2,000,000 or more
The survey's top or bottom value; no margin is published
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 110?
Census Tract 110 is one of 146 census tracts in Western Connecticut Planning Region, Connecticut. It covers 1.73 square miles of land, 3,171 residents per square mile in 2020. Its GEOID, 09190011000, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Old Greenwich | 100% |
| Greenwich | 100% |
4 census tracts border Census Tract 110: Tract 109 ($232,560), Tract 111 ($250,000 or more), Tract 214.02 ($60,570) and Tract 223 ($121,971). 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 110?
The 2020-2024 American Community Survey puts Census Tract 110's population at 5,267 (±584) in 1,871 households; the 2020 Census counted 5,477 residents and 1,923 housing units.
| Measure | Tract 110 | Old Greenwich |
|---|---|---|
| Total population | 5,267 ±584 | 6,936 |
| Households | 1,871 ±205 | 2,385 |
| Average household size | 2.81 ±0.20 | 2.90 |
| Housing units | 1,983 ±221 | 2,542 |
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 110?
The median resident of Census Tract 110 is 40.9 years old; 33.0% are under 18 and 15.0% are 65 or older. The largest group is non-Hispanic white residents at 76.4%, then non-Hispanic Asian residents at 10.0%. 21.1% of residents were born outside the United States.
| Measure | Tract 110 | Old Greenwich |
|---|---|---|
| Median age | 40.9 ±2.5 | 40.5 |
| Under 18 years | 33.0% ±3.1 pts | 32.8% |
| 65 years and over | 15.0% ±2.7 pts | 14.5% |
| Hispanic or Latino (any race) | 6.0% ±2.9 pts | 7.2% |
| White alone, not Hispanic | 76.4% ±7.0 pts | 76.5% |
| Black or African American alone, not Hispanic | 0.4% ±0.5 pts | 0.5% |
| Asian alone, not Hispanic | 10.0% ±4.1 pts | 9.2% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.8 pts | 0.0% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.8 pts | 0.0% |
| Two or more races, not Hispanic | 7.0% ±3.9 pts | 6.4% |
| Some other race alone, not Hispanic | 0.2% ±0.4 pts | 0.2% |
| Born outside the United States | 21.1% ±5.2 pts | 19.2% |
| Speak a language other than English at home (age 5+) | 21.6% ±6.2 pts | 20.3% |
| Civilian veterans (age 18+) | 2.3% ±1.3 pts | 2.2% |
| With a disability | 4.6% ±1.9 pts | 5.0% |
| No health insurance coverage | 2.1% ±1.6 pts | 2.3% |
| High school graduate or higher (age 25+) | 99.2% ±0.7 pts | 99.0% |
| Bachelor's degree or higher (age 25+) | 88.2% ±3.9 pts | 85.4% |
| Graduate or professional degree (age 25+) | 40.0% ±6.0 pts | 39.5% |
| Lived in the same house a year earlier | 89.7% ±3.9 pts | 88.5% |
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 110 earn?
Half of the 1,871 households in Census Tract 110 earn less than $250,000 or more a year (), against $128,188 across Western Connecticut Planning Region: 1st highest of the county's 143 tracts with a reliable estimate. 3.4% of residents live below the poverty line.
| Measure | Tract 110 | Old Greenwich |
|---|---|---|
| Median household income | $250,000 or more | $250,000 or more |
| Mean household income | $437,205 ±$71,929 | $415,317 |
| Per capita income | $155,873 ±$20,710 | $143,881 |
| People below the poverty line | 3.4% ±1.8 pts | 3.6% |
| Children under 18 below the poverty line | 2.2% ±2.3 pts | 1.7% |
| Households receiving SNAP | 0.0% ±2.2 pts | 0.8% |
| Households with a computer | 99.1% ±0.9 pts | 99.1% |
| Households with a broadband subscription | 97.6% ±1.9 pts | 97.4% |
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 110?
Owners occupy 86.0% of Census Tract 110's occupied homes and renters 14.0%. The median owner-occupied home is valued at $2,000,000 or more by its owner (). The median renter pays $3,500 or more a month including utilities, and 53.6% of renters pay 35% or more of their income on rent.
| Measure | Tract 110 | Old Greenwich |
|---|---|---|
| Median home value (owner-occupied) | $2,000,000 or more | $1,844,700 |
| Median gross rent | $3,500 or more | $3,500 or more |
| Renters paying 35% or more of income on rent | 53.6% ±22.2 pts | 47.2% |
| Median monthly owner costs, with a mortgage | $4,000 or more | $4,000 or more |
| Owner-occupied homes | 86.0% ±4.7 pts | 86.3% |
| Renter-occupied homes | 14.0% ±4.7 pts | 13.7% |
| Housing units | 1,983 ±221 | 2,542 |
| Single-family detached homes | 80.1% ±6.3 pts | 82.2% |
| Mobile homes | 0.0% ±2.1 pts | 0.0% |
| Built 2020 or later | 0.6% ±0.9 pts | 0.7% |
| Built 2010 to 2019 | 6.9% ±3.1 pts | 7.1% |
| Built 1939 or earlier | 31.6% ±6.5 pts | 26.1% |
| Households with no vehicle | 1.0% ±1.1 pts | 1.2% |
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 110 get to work?
41.5% of Census Tract 110's workers drive alone and 32.2% work from home. The average trip to work takes 34.9 minutes.
| Measure | Tract 110 | Old Greenwich |
|---|---|---|
| In the labor force (age 16+) | 62.2% ±4.6 pts | 64.0% |
| Unemployment rate | 3.2% ±2.4 pts | 4.6% |
| Drove alone to work | 41.5% ±8.0 pts | 38.2% |
| Carpooled | 2.4% ±2.2 pts | 4.4% |
| Public transportation | 18.4% ±5.5 pts | 16.9% |
| Walked | 2.4% ±1.8 pts | 1.8% |
| Worked from home | 32.2% ±9.1 pts | 36.3% |
| Mean travel time to work | 34.9 min ±4.7 | 34.7 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 110 compare with the other tracts in Western Connecticut Planning Region?
Among Western Connecticut Planning Region's tracts with a reliable estimate, Census Tract 110 ranks as shown below (1 = highest).
| Measure | In Western Connecticut Planning Region |
|---|---|
| Population | 36th of 145 |
| Residents per square mile | 61st of 145 |
| Median household income | 1st of 143 |
| Per capita income | 11th of 145 |
| Median home value | 1st of 144 |
| Median gross rent | 1st of 128 |
| Poverty rate | 58th of 65 |
| Bachelor's degree or higher | 4th of 144 |
| Median age | 91st of 145 |
| Owner-occupied share | 54th of 143 |
The tracts next to it on Western Connecticut Planning Region's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 101.01 | 1st | $250,000 or more |
| Tract 101.02 | 1st | $250,000 or more |
| Tract 102.01 | 1st | $250,000 or more |
| Tract 103 | 1st | $250,000 or more |
| Tract 110 | 1st | $250,000 or more |
| Tract 111 | 1st | $250,000 or more |
| Tract 112 | 1st | $250,000 or more |
| Tract 203.02 | 1st | $250,000 or more |
| Tract 301 | 1st | $250,000 or more |
| Tract 302 | 1st | $250,000 or more |
| Tract 303 | 1st | $250,000 or more |
| Tract 304 | 1st | $250,000 or more |
| Tract 305 | 1st | $250,000 or more |
| Tract 352 | 1st | $250,000 or more |
| Tract 353 | 1st | $250,000 or more |
| Tract 354 | 1st | $250,000 or more |
| Tract 446 | 1st | $250,000 or more |
| Tract 451.01 | 1st | $250,000 or more |
| Tract 453 | 1st | $250,000 or more |
| Tract 501 | 1st | $250,000 or more |
| Tract 503.02 | 1st | $250,000 or more |
| Tract 505 | 1st | $250,000 or more |
| Tract 506 | 1st | $250,000 or more |
| Tract 552 | 1st | $250,000 or more |
| Tract 2451 | 1st | $250,000 or more |
| Tract 2455 | 1st | $250,000 or more |
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 110?
1 of the 18 figures for Census Tract 110 on this page carries a coefficient of variation over 40% and is 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