Census tract · Lower Connecticut River Valley Planning Region
Census Tract 6601.03, Lower Connecticut River Valley Planning Region, Connecticut
Census Tract 6601.03, GEOID 09130660103, in Lower Connecticut River Valley Planning Region, Connecticut, entirely within Old Lyme. 2,813 residents in the ACS 2020-2024 5-year estimates (±294); the 2020 Census counted 2,766.
Residents, 2020-2024
2,813
±294 (90% margin)
2020 Census count: 2,766
Median household income
$132,027
±$10,020 (90% margin)
Lower Connecticut River Valley Planning Region: $104,428
Median home value
$509,800
±$50,191 (90% margin)
Lower Connecticut River Valley Planning Region: $379,700
Median gross rent
$2,198
±$901 (90% margin)
Lower Connecticut River Valley Planning Region: $1,454
Where is Census Tract 6601.03?
Census Tract 6601.03 is one of 45 census tracts in Lower Connecticut River Valley Planning Region, Connecticut. It covers 7.93 square miles of land, 349 residents per square mile in 2020. Its GEOID, 09130660103, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Old Lyme | 100% |
4 census tracts border Census Tract 6601.03: Tract 6601.01 ($121,250), Tract 6601.04 ($149,750), Tract 7161.01 in Southeastern Connecticut Planning Region ($91,027) and Tract 8707.03 in Southeastern Connecticut Planning Region ($142,159). 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 6601.03?
The 2020-2024 American Community Survey puts Census Tract 6601.03's population at 2,813 (±294) in 1,155 households; the 2020 Census counted 2,766 residents and 1,480 housing units.
| Measure | Tract 6601.03 | Old Lyme |
|---|---|---|
| Total population | 2,813 ±294 | 7,679 |
| Households | 1,155 ±137 | 3,185 |
| Average household size | 2.42 ±0.18 | 2.40 |
| Housing units | 1,493 ±178 | 4,598 |
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 6601.03?
The median resident of Census Tract 6601.03 is 46.7 years old; 20.6% are under 18 and 23.5% are 65 or older. The largest group is non-Hispanic white residents at 92.9%, then non-Hispanic residents of two or more races at 4.6%. 9.0% of residents were born outside the United States.
| Measure | Tract 6601.03 | Old Lyme |
|---|---|---|
| Median age | 46.7 ±6.6 | 50.6 |
| Under 18 years | 20.6% ±4.5 pts | 20.3% |
| 65 years and over | 23.5% ±4.6 pts | 26.4% |
| Hispanic or Latino (any race) | 2.6% ±3.0 pts | 5.5% |
| White alone, not Hispanic | 92.9% ±5.7 pts | 87.6% |
| Black or African American alone, not Hispanic | 0.0% ±1.5 pts | 0.4% |
| Asian alone, not Hispanic | 0.0% ±1.5 pts | 2.4% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±1.5 pts | 0.0% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±1.5 pts | 0.0% |
| Two or more races, not Hispanic | 4.6% ±4.9 pts | 4.1% |
| Some other race alone, not Hispanic | 0.0% ±1.5 pts | 0.1% |
| Born outside the United States | 9.0% ±4.7 pts | 8.7% |
| Speak a language other than English at home (age 5+) | 9.3% ±3.8 pts | 9.2% |
| Civilian veterans (age 18+) | 5.6% ±2.1 pts | 5.5% |
| With a disability | 7.1% ±2.5 pts | 9.7% |
| No health insurance coverage | 0.4% ±0.6 pts | 1.4% |
| High school graduate or higher (age 25+) | 99.0% ±0.7 pts | 97.9% |
| Bachelor's degree or higher (age 25+) | 56.3% ±8.5 pts | 56.5% |
| Graduate or professional degree (age 25+) | 26.5% ±6.9 pts | 30.4% |
| Lived in the same house a year earlier | 88.7% ±7.5 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 6601.03 earn?
Half of the 1,155 households in Census Tract 6601.03 earn less than $132,027 a year (±$10,020), against $104,428 across Lower Connecticut River Valley Planning Region: 9th highest of the county's 44 tracts with a reliable estimate.
| Measure | Tract 6601.03 | Old Lyme |
|---|---|---|
| Median household income | $132,027 ±$10,020 | $131,899 |
| Mean household income | $166,626 ±$27,343 | $204,403 |
| Per capita income | $68,532 ±$11,900 | $83,426 |
| People below the poverty line | 3.4% ±2.5 pts | 2.9% |
| Children under 18 below the poverty line | 2.8% ±3.1 pts | 1.1% |
| Households receiving SNAP | 2.0% ±3.3 pts | 1.4% |
| Households with a computer | 99.0% ±1.2 pts | 99.2% |
| Households with a broadband subscription | 99.0% ±1.1 pts | 98.8% |
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 6601.03?
Owners occupy 91.4% of Census Tract 6601.03's occupied homes and renters 8.6%. The median owner-occupied home is valued at $509,800 by its owner (±$50,191). The median renter pays $2,198 a month including utilities.
| Measure | Tract 6601.03 | Old Lyme |
|---|---|---|
| Median home value (owner-occupied) | $509,800 ±$50,191 | $484,200 |
| Median gross rent | $2,198 ±$901 | $2,238 |
| Renters paying 35% or more of income on rent | 40.4% ±39.3 pts | 37.1% |
| Median monthly owner costs, with a mortgage | $3,012 ±$377 | $2,742 |
| Owner-occupied homes | 91.4% ±5.9 pts | 88.8% |
| Renter-occupied homes | 8.6% ±5.9 pts | 11.2% |
| Housing units | 1,493 ±178 | 4,598 |
| Single-family detached homes | 95.6% ±4.0 pts | 93.4% |
| Mobile homes | 0.0% ±2.8 pts | 1.6% |
| Built 2020 or later | 0.8% ±1.2 pts | 0.5% |
| Built 2010 to 2019 | 3.1% ±1.7 pts | 1.5% |
| Built 1939 or earlier | 8.8% ±5.8 pts | 17.9% |
| Households with no vehicle | 0.8% ±1.1 pts | 2.9% |
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 6601.03 get to work?
72.4% of Census Tract 6601.03's workers drive alone and 21.0% work from home. The average trip to work takes 30.7 minutes.
| Measure | Tract 6601.03 | Old Lyme |
|---|---|---|
| In the labor force (age 16+) | 66.4% ±5.3 pts | 61.7% |
| Unemployment rate | 1.5% ±1.5 pts | 2.7% |
| Drove alone to work | 72.4% ±7.9 pts | 70.4% |
| Carpooled | 3.6% ±3.1 pts | 2.3% |
| Public transportation | 2.0% ±1.5 pts | 1.2% |
| Walked | 0.7% ±1.1 pts | 1.1% |
| Worked from home | 21.0% ±8.6 pts | 24.2% |
| Mean travel time to work | 30.7 min ±4.4 | 27.1 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 6601.03 compare with the other tracts in Lower Connecticut River Valley Planning Region?
Among Lower Connecticut River Valley Planning Region's tracts with a reliable estimate, Census Tract 6601.03 ranks as shown below (1 = highest).
| Measure | In Lower Connecticut River Valley Planning Region |
|---|---|
| Population | 36th of 44 |
| Residents per square mile | 29th of 44 |
| Median household income | 9th of 44 |
| Per capita income | 8th of 44 |
| Median home value | 4th of 43 |
| Median gross rent | 3rd of 39 |
| Bachelor's degree or higher | 6th of 44 |
| Median age | 18th of 44 |
| Owner-occupied share | 11th of 43 |
The tracts next to it on Lower Connecticut River Valley Planning Region's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 6401 | 6th | $140,655±$16,359 · within the margin of this tract |
| Tract 5502.01 | 7th | $136,620±$13,746 · within the margin of this tract |
| Tract 6501 | 8th | $135,000±$21,753 · within the margin of this tract |
| Tract 6601.03 | 9th | $132,027±$10,020 |
| Tract 6103 | 10th | $129,155±$31,354 · within the margin of this tract |
| Tract 5601 | 11th | $127,105±$15,827 · within the margin of this tract |
| Tract 5951.01 | 12th | $126,875±$15,093 · within the margin of this tract |
"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 6601.03?
4 of the 18 figures for Census Tract 6601.03 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