Census-designated place · Connecticut
Thomaston CDP, Connecticut
Thomaston CDP, census-designated place, in Naugatuck Valley Planning Region, Connecticut. Thomaston CDP had 1,928 residents in the 2020 Census, a full count; the ACS 2020-2024 5-year estimates put it at 1,988 (±526). GEOID 0975660.
Residents, 2020 Census
1,928
Census count or controlled total
ACS 2020-2024 estimate: 1,988 ±526
Median household income
$79,674
±$18,104 (90% margin)
Connecticut: $95,781
Median home value
$246,300
±$32,436 (90% margin)
Connecticut: $366,900
Median gross rent
$1,016
±$103 (90% margin)
Connecticut: $1,488
Where is Thomaston CDP and what county is it in?
Thomaston CDP is a census-designated place: an unincorporated community the Census Bureau draws for counting, with no city government of its own, in Naugatuck Valley Planning Region, Connecticut. It covers 1.2 square miles of land, 1,608 residents per square mile in 2020.
Thomaston CDP is in the Waterbury-Shelton, CT metropolitan statistical area (Census Bureau delineation, July 2023).
Thomaston CDP lies entirely within Thomaston, a town with its own local government (2020 census blocks).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Thomaston CDP, and is it growing?
The 2020 Census counted 1,928 residents in Thomaston CDP, a full count rather than a sample. The 2020-2024 American Community Survey, a sample, estimates 1,988 (±526).
The Census Bureau publishes yearly population estimates for incorporated places only; Thomaston CDP is a census-designated place, so its figures come from the ACS and the 2020 Census.
| Measure | Thomaston CDP | Naugatuck Valley Planning Region | Change since 2015-2019 |
|---|---|---|---|
| Total population | 1,988 ±526 | 454,969 | no clear change |
| Households | 1,022 ±252 | 180,116 | no clear change |
| Average household size | 1.95 ±0.36 | 2.49 | no clear change |
| Housing units | 1,144 ±255 | 192,551 | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Thomaston CDP?
The median resident of Thomaston CDP is 47.4 years old; 18.8% are under 18 and 24.8% are 65 or older. The largest group is non-Hispanic white residents at 70.9%, then non-Hispanic residents of two or more races at 14.9%.
| Measure | Thomaston CDP | Naugatuck Valley Planning Region | Change since 2015-2019 |
|---|---|---|---|
| Median age | 47.4 ±14.1 | 41.8 | no clear change |
| Under 18 years | 18.8% ±8.0 pts | 20.3% | – |
| 65 years and over | 24.8% ±8.9 pts | 19.2% | – |
| Male | 52.4% ±8.2 pts | 48.9% | – |
| Hispanic or Latino (any race) | 3.6% ±3.7 pts | 19.9% | – |
| White alone, not Hispanic | 70.9% ±14.9 pts | 59.8% | −24.2 pts |
| Black or African American alone, not Hispanic | 6.4% ±5.0 pts | 10.6% | – |
| Asian alone, not Hispanic | 4.2% ±4.2 pts | 3.8% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±2.1 pts | 0.0% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±2.1 pts | 0.0% | – |
| Two or more races, not Hispanic | 14.9% ±9.8 pts | 5.0% | – |
| Some other race alone, not Hispanic | 0.0% ±2.1 pts | 0.9% | – |
| Born outside the United States | 8.4% ±5.8 pts | 14.2% | – |
| Speak a language other than English at home (age 5+) | 5.6% ±5.6 pts | 23.3% | – |
| Civilian veterans (age 18+) | 7.9% ±3.7 pts | 5.0% | – |
| With a disability | 15.1% ±5.9 pts | 13.8% | – |
| No health insurance coverage | 2.2% ±1.8 pts | 4.8% | – |
| High school graduate or higher (age 25+) | 93.1% ±3.2 pts | 90.5% | – |
| Bachelor's degree or higher (age 25+) | 31.9% ±11.8 pts | 33.8% | no clear change |
| Graduate or professional degree (age 25+) | 8.7% ±4.8 pts | 14.5% | – |
| Lived in the same house a year earlier | 81.7% ±11.3 pts | 90.5% | – |
| Moved from another state in the past year | 1.7% ±2.0 pts | 1.7% | – |
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 Thomaston CDP earn?
Half of Thomaston CDP's 1,022 households earn less than $79,674 a year (±$18,104), against $86,191 in Naugatuck Valley Planning Region and $95,781 in Connecticut. In 2015-2019 it was $56,920 in 2024 dollars; the margins of error cannot tell the two periods apart. 6.2% of residents live below the poverty line.
| Measure | Thomaston CDP | Naugatuck Valley Planning Region | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $79,674 ±$18,104 | $86,191 | no clear change |
| Mean household income | $88,392 ±$15,178 | $114,324 | – |
| Per capita income | $46,817 ±$7,425 | $46,363 | no clear change |
| People below the poverty line | 6.2% ±3.0 pts | 11.2% | no clear change |
| Children under 18 below the poverty line | 0.0% ±11.0 pts | 15.8% | – |
| Households receiving SNAP | 5.8% ±4.6 pts | 14.5% | – |
| Households with a computer | 85.8% ±12.7 pts | 94.8% | – |
| Households with a broadband subscription | 79.6% ±13.0 pts | 90.8% | – |
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 Thomaston CDP?
Owners occupy 56.6% of Thomaston CDP's occupied homes and renters 43.4%. The median owner-occupied home is valued at $246,300 by its owner (±$32,436). The median renter pays $1,016 a month including utilities, and 55.9% of renters pay 35% or more of their income on rent.
| Measure | Thomaston CDP | Naugatuck Valley Planning Region | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $246,300 ±$32,436 | $317,700 | no clear change |
| Median gross rent | $1,016 ±$103 | $1,330 | no clear change |
| Renters paying 35% or more of income on rent | 55.9% ±19.9 pts | 44.4% | no clear change |
| Median monthly owner costs, with a mortgage | $2,179 ±$191 | $2,229 | – |
| Owner-occupied homes | 56.6% ±13.2 pts | 68.6% | +19.0 pts |
| Renter-occupied homes | 43.4% ±13.2 pts | 31.4% | – |
| Housing units | 1,144 ±255 | 192,551 | no clear change |
| Homeowner vacancy rate | 0.0% ±7.1 pts | 1.0% | – |
| Rental vacancy rate | 0.0% ±9.1 pts | 4.3% | – |
| Single-family detached homes | 40.7% ±12.8 pts | 59.0% | – |
| Mobile homes | 0.9% ±1.5 pts | 0.8% | – |
| Built 2020 or later | 4.5% ±4.2 pts | 0.6% | – |
| Built 2010 to 2019 | 5.6% ±5.8 pts | 3.3% | – |
| Built 1939 or earlier | 54.9% ±13.0 pts | 19.3% | – |
| Households with no vehicle | 14.4% ±12.8 pts | 9.1% | – |
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 Thomaston CDP work and get to work?
74.7% of Thomaston CDP's workers drive alone. The average trip to work takes 17.6 minutes.
| Measure | Thomaston CDP | Naugatuck Valley Planning Region | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 65.4% ±9.2 pts | 65.1% | – |
| Unemployment rate | 3.9% ±4.2 pts | 6.0% | – |
| Drove alone to work | 74.7% ±11.3 pts | 74.3% | – |
| Carpooled | 0.0% ±4.2 pts | 8.8% | – |
| Public transportation | 2.7% ±3.0 pts | 1.4% | – |
| Walked | 7.7% ±7.7 pts | 1.3% | – |
| Worked from home | 14.9% ±10.5 pts | 12.7% | – |
| Mean travel time to work | 17.6 min ±2.8 | 28.3 min | −8.5 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
What census tracts are in Thomaston CDP?
No census tract lies mostly in Thomaston CDP; 2 tracts reach into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 3492Naugatuck Valley Planning Region | 2,505 | $110,888 |
| Tract 3491Naugatuck Valley Planning Region | 4,987 | $101,477 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Thomaston CDP) · Census block assignment files
How does Thomaston CDP compare with other places in Connecticut?
Thomaston CDP ranks 241st of 294 places in Connecticut with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population (ACS 2020-2024) | 255th | 303 |
| Residents per square mile | 81st | 303 |
| Median household income | 241st | 294 |
| Per capita income | 227th | 303 |
| Median home value | 270th | 300 |
| Median gross rent | 258th | 266 |
| Poverty rate | 107th | 202 |
| Bachelor's degree or higher | 234th | 297 |
| Median age | 102nd | 301 |
| Owner-occupied share | 262nd | 300 |
| Travel time to work | 294th | 302 |
Thomaston CDP's figures with every place in Connecticut (CSV)
Every place in Connecticut, sortable · Compare Thomaston CDP with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Thomaston CDP?
23 of the 57 figures for Thomaston CDP 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.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. 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 · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Thomaston CDP are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.