PlainCities

Census tract · Western Connecticut Planning Region

Census Tract 103, Western Connecticut Planning Region, Connecticut

Census Tract 103, GEOID 09190010300, in Western Connecticut Planning Region, Connecticut, entirely within Greenwich. 4,564 residents in the ACS 2020-2024 5-year estimates (±439); the 2020 Census counted 4,370.

Residents, 2020-2024

4,564

±439 (90% margin)
2020 Census count: 4,370

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

$2,360

±$1,644 (90% margin)
Western Connecticut Planning Region: $2,110

Where is Census Tract 103?

Census Tract 103 is one of 146 census tracts in Western Connecticut Planning Region, Connecticut. It covers 3.72 square miles of land, 1,174 residents per square mile in 2020. Its GEOID, 09190010300, names it uniquely (how tract numbers and GEOIDs work).

Places Census Tract 103 lies in (share of its 2020 census blocks)
PlaceShare of the tract
Greenwich100%
Greenwich CDP63%
Rock Ridge11%
Glenville5%
Pemberwick2%
Census Tract 103 (marked with a dot) in Western Connecticut Planning Region, Connecticut. Boundaries: Census Bureau 2024.
101.01102.01104105107 103 2 mi
Census Tract 103 (shaded) and the tracts that border it, numbered. Boundaries: Census Bureau 2024 cartographic boundary file, 1:500,000.

6 census tracts border Census Tract 103: Tract 101.01 ($250,000 or more), Tract 102.01 ($250,000 or more), Tract 104 ($151,198), Tract 105 ($93,587), Tract 106 ($115,083) and Tract 107 ($84,621). 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 103?

The 2020-2024 American Community Survey puts Census Tract 103's population at 4,564 (±439) in 1,661 households; the 2020 Census counted 4,370 residents and 1,744 housing units.

Counts, ACS 2020-2024 5-year estimates
Measure Tract 103GreenwichWestern Connecticut Planning RegionConnecticut
Total population 4,564 ±439 63,856 627,071 3,624,508
Households 1,661 ±171 23,094 235,379 1,434,007
Average household size 2.72 ±0.24 2.74 2.63 2.46
Housing units 1,774 ±188 25,613 251,530 1,541,822

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 103?

The median resident of Census Tract 103 is 45.6 years old; 24.0% are under 18 and 17.6% are 65 or older. The largest group is non-Hispanic white residents at 83.1%, then non-Hispanic Asian residents at 7.9%. 14.3% 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.
Measure Tract 103GreenwichWestern Connecticut Planning RegionConnecticut
Median age 45.6 ±3.0 43.0 41.5 41.1
Under 18 years 24.0% ±3.1 pts 25.7% 21.8% 20.2%
65 years and over 17.6% ±4.6 pts 18.7% 17.4% 18.5%
Hispanic or Latino (any race) 5.4% ±2.9 pts 14.4% 20.5% 18.3%
White alone, not Hispanic 83.1% ±5.8 pts 68.5% 58.6% 61.9%
Black or African American alone, not Hispanic 0.3% ±0.5 pts 2.5% 9.3% 9.8%
Asian alone, not Hispanic 7.9% ±4.0 pts 7.0% 5.4% 4.7%
American Indian and Alaska Native alone, not Hispanic 0.0% ±0.9 pts 0.1% 0.1% 0.1%
Native Hawaiian and Other Pacific Islander alone, not Hispanic 0.0% ±0.9 pts 0.0% 0.0% 0.0%
Two or more races, not Hispanic 2.7% ±1.9 pts 5.5% 4.8% 4.3%
Some other race alone, not Hispanic 0.6% ±0.9 pts 2.0% 1.2% 0.9%
Born outside the United States 14.3% ±4.3 pts 22.5% 23.8% 15.7%
Speak a language other than English at home (age 5+) 16.7% ±5.9 pts 25.1% 29.7% 23.4%
Civilian veterans (age 18+) 2.0% ±1.5 pts 2.4% 3.1% 4.7%
With a disability 3.5% ±1.9 pts 6.2% 9.5% 12.2%
No health insurance coverage 2.6% ±1.6 pts 4.4% 7.2% 5.4%
High school graduate or higher (age 25+) 99.1% ±1.4 pts 96.0% 91.7% 91.5%
Bachelor's degree or higher (age 25+) 86.3% ±5.0 pts 72.5% 55.5% 42.5%
Graduate or professional degree (age 25+) 51.8% ±7.4 pts 38.2% 25.4% 19.2%
Lived in the same house a year earlier 92.8% ±3.4 pts 88.2% 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 103 earn?

Half of the 1,661 households in Census Tract 103 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.

Income and poverty in 2024 dollars, ACS 2020-2024 5-year estimates
Measure Tract 103GreenwichWestern Connecticut Planning RegionConnecticut
Median household income $250,000 or more $206,130 $128,188 $95,781
Mean household income $519,718 ±$92,691 $376,402 $214,668 $138,744
Per capita income $191,525 ±$36,449 $137,685 $82,266 $55,915
People below the poverty line 2.1% ±1.5 pts 6.1% 7.5% 10.0%
Children under 18 below the poverty line 0.0% ±3.8 pts 7.1% 9.1% 13.0%
Households receiving SNAP 1.9% ±2.8 pts 3.4% 7.0% 11.8%
Households with a computer 100.0% ±2.5 pts 97.7% 96.6% 95.4%
Households with a broadband subscription 97.7% ±3.5 pts 96.1% 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 103?

Owners occupy 70.1% of Census Tract 103's occupied homes and renters 29.9%. The median owner-occupied home is valued at $2,000,000 or more by its owner ().

Housing, ACS 2020-2024 5-year estimates
Measure Tract 103GreenwichWestern Connecticut Planning RegionConnecticut
Median home value (owner-occupied) $2,000,000 or more $1,695,700 $652,900 $366,900
Median gross rent $2,360 ±$1,644 $2,674 $2,110 $1,488
Renters paying 35% or more of income on rent 31.9% ±14.7 pts 46.3% 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 homes 70.1% ±6.9 pts 70.0% 66.4% 66.5%
Renter-occupied homes 29.9% ±6.9 pts 30.0% 33.6% 33.5%
Housing units 1,774 ±188 25,613 251,530 1,541,822
Single-family detached homes 81.6% ±5.2 pts 63.7% 57.3% 58.6%
Mobile homes 0.0% ±2.4 pts 0.0% 0.4% 0.7%
Built 2020 or later 0.0% ±2.4 pts 1.0% 1.0% 0.7%
Built 2010 to 2019 2.8% ±1.8 pts 5.5% 8.2% 4.5%
Built 1939 or earlier 43.2% ±8.5 pts 25.6% 16.3% 20.2%
Households with no vehicle 1.9% ±2.8 pts 4.0% 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 103 get to work?

42.8% of Census Tract 103's workers drive alone and 35.5% work from home. The average trip to work takes 26.7 minutes.

Work and commuting, ACS 2020-2024 5-year estimates
Measure Tract 103GreenwichWestern Connecticut Planning RegionConnecticut
In the labor force (age 16+) 60.7% ±5.4 pts 63.2% 68.3% 65.9%
Unemployment rate 3.0% ±2.7 pts 6.0% 5.3% 5.6%
Drove alone to work 42.8% ±7.5 pts 50.3% 59.3% 68.8%
Carpooled 1.7% ±2.7 pts 5.0% 8.1% 7.9%
Public transportation 12.3% ±6.0 pts 12.3% 7.0% 3.3%
Walked 6.7% ±2.7 pts 2.8% 2.5% 2.5%
Worked from home 35.5% ±8.5 pts 27.9% 21.5% 16.0%
Mean travel time to work 26.7 min ±5.1 29.6 min 30.8 min 26.5 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 103 compare with the other tracts in Western Connecticut Planning Region?

Among Western Connecticut Planning Region's tracts with a reliable estimate, Census Tract 103 ranks as shown below (1 = highest).

Census Tract 103's rank among the tracts of Western Connecticut Planning Region
MeasureIn Western Connecticut Planning Region
Population59th of 145
Residents per square mile94th of 145
Median household income1st of 143
Per capita income5th of 145
Median home value1st of 144
Bachelor's degree or higher9th of 144
Median age41st of 145
Owner-occupied share86th 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 101.011st$250,000 or more4,433
Tract 101.021st$250,000 or more4,154
Tract 102.011st$250,000 or more3,376
Tract 1031st$250,000 or more4,564
Tract 1101st$250,000 or more5,267
Tract 1111st$250,000 or more5,232
Tract 1121st$250,000 or more1,791
Tract 203.021st$250,000 or more3,262
Tract 3011st$250,000 or more3,226
Tract 3021st$250,000 or more3,580
Tract 3031st$250,000 or more4,914
Tract 3041st$250,000 or more4,159
Tract 3051st$250,000 or more6,057
Tract 3521st$250,000 or more3,278
Tract 3531st$250,000 or more4,158
Tract 3541st$250,000 or more5,426
Tract 4461st$250,000 or more3,033
Tract 451.011st$250,000 or more4,381
Tract 4531st$250,000 or more2,535
Tract 5011st$250,000 or more4,216
Tract 503.021st$250,000 or more4,313
Tract 5051st$250,000 or more5,038
Tract 5061st$250,000 or more3,366
Tract 5521st$250,000 or more4,452
Tract 24511st$250,000 or more3,044
Tract 24551st$250,000 or more2,968

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 103?

3 of the 18 figures for Census Tract 103 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