Census tract · Hamilton County
Census Tract 235.21, Hamilton County, Ohio
Census Tract 235.21, GEOID 39061023521, in Hamilton County, Ohio, mostly within Blue Ash (87% of its census blocks). 2,684 residents in the ACS 2020-2024 5-year estimates (±436); the 2020 Census counted 2,582.
Residents, 2020-2024
2,684
±436 (90% margin)
2020 Census count: 2,582
Median household income
$101,268
±$14,064 (90% margin)
Hamilton County: $72,470
Median home value
$354,500
±$41,590 (90% margin)
Hamilton County: $241,900
Median gross rent
$1,599
±$175 (90% margin)
Hamilton County: $1,075
Where is Census Tract 235.21?
Census Tract 235.21 is one of 226 census tracts in Hamilton County, Ohio. It covers 2.46 square miles of land, 1,051 residents per square mile in 2020. Its GEOID, 39061023521, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Blue Ash | 87% |
| Brecon | 7% |
| Sycamore Township, Hamilton County | 7% |
| Montgomery | 4% |
| Sharonville | 2% |
6 census tracts border Census Tract 235.21: Tract 223.02 ($80,556), Tract 230.01 ($58,700), Tract 235.01 ($129,491), Tract 235.22 ($112,882), Tract 239.01 ($94,135) and Tract 239.02 ($144,833). 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 235.21?
The 2020-2024 American Community Survey puts Census Tract 235.21's population at 2,684 (±436) in 1,101 households; the 2020 Census counted 2,582 residents and 1,100 housing units.
| Measure | Tract 235.21 | Blue Ash |
|---|---|---|
| Total population | 2,684±436 | 13,455 |
| Households | 1,101±119 | 5,746 |
| Average household size | 2.43±0.30 | 2.33 |
| Housing units | 1,202±152 | 6,142 |
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 235.21?
The median resident of Census Tract 235.21 is 39.2 years old; 31.4% are under 18 and 15.6% are 65 or older. The largest group is non-Hispanic white residents at 73.2%, then non-Hispanic Asian residents at 15.6%. 20.9% of residents were born outside the United States.
| Measure | Tract 235.21 | Blue Ash |
|---|---|---|
| Median age | 39.2±4.7 | 38.8 |
| Under 18 years | 31.4%±5.7 pts | 23.8% |
| 65 years and over | 15.6%±3.9 pts | 20.0% |
| Hispanic or Latino (any race) | 2.0%±2.9 pts | 3.6% |
| White alone, not Hispanic | 73.2%±10.0 pts | 69.7% |
| Black or African American alone, not Hispanic | 3.4%±3.1 pts | 8.4% |
| Asian alone, not Hispanic | 15.6%±8.6 pts | 13.0% |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±1.4 pts | 0.0% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 2.5%±4.0 pts | 0.5% |
| Two or more races, not Hispanic | 2.8%±2.4 pts | 4.3% |
| Some other race alone, not Hispanic | 0.6%±0.9 pts | 0.4% |
| Born outside the United States | 20.9%±8.9 pts | 14.2% |
| Speak a language other than English at home (age 5+) | 24.8%±9.7 pts | 17.1% |
| Civilian veterans (age 18+) | 0.9%±1.0 pts | 3.9% |
| With a disability | 7.4%±3.5 pts | 9.2% |
| No health insurance coverage | 1.3%±1.1 pts | 2.6% |
| High school graduate or higher (age 25+) | 96.6%±2.9 pts | 98.1% |
| Bachelor's degree or higher (age 25+) | 64.5%±8.3 pts | 67.0% |
| Graduate or professional degree (age 25+) | 26.8%±5.9 pts | 27.5% |
| Lived in the same house a year earlier | 91.4%±6.4 pts | 83.9% |
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 235.21 earn?
Half of the 1,101 households in Census Tract 235.21 earn less than $101,268 a year (±$14,064), against $72,470 across Hamilton County: 50th highest of the county's 216 tracts with a reliable estimate.
| Measure | Tract 235.21 | Blue Ash |
|---|---|---|
| Median household income | $101,268±$14,064 | $115,313 |
| Mean household income | $142,816±$31,608 | $152,575 |
| Per capita income | $57,818±$16,010 | $64,458 |
| People below the poverty line | 2.6%±2.3 pts | 4.0% |
| Children under 18 below the poverty line | 2.5%±4.1 pts | 2.0% |
| Households receiving SNAP | 3.0%±2.8 pts | 2.0% |
| Households with a computer | 100.0%±3.3 pts | 98.7% |
| Households with a broadband subscription | 98.6%±2.2 pts | 97.7% |
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 235.21?
Owners occupy 75.8% of Census Tract 235.21's occupied homes and renters 24.2%. The median owner-occupied home is valued at $354,500 by its owner (±$41,590). The median renter pays $1,599 a month including utilities, and 53.4% of renters pay 35% or more of their income on rent.
| Measure | Tract 235.21 | Blue Ash |
|---|---|---|
| Median home value (owner-occupied) | $354,500±$41,590 | $403,200 |
| Median gross rent | $1,599±$175 | $1,555 |
| Renters paying 35% or more of income on rent | 53.4%±25.7 pts | 29.1% |
| Median monthly owner costs, with a mortgage | $2,247±$280 | $2,362 |
| Owner-occupied homes | 75.8%±6.6 pts | 64.9% |
| Renter-occupied homes | 24.2%±6.6 pts | 35.1% |
| Housing units | 1,202±152 | 6,142 |
| Single-family detached homes | 76.7%±6.6 pts | 63.0% |
| Mobile homes | 0.7%±1.1 pts | 0.1% |
| Built 2020 or later | 8.5%±5.3 pts | 4.6% |
| Built 2010 to 2019 | 9.7%±8.4 pts | 8.1% |
| Built 1939 or earlier | 4.1%±3.5 pts | 4.2% |
| Households with no vehicle | 7.1%±7.0 pts | 5.2% |
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 235.21 get to work?
71.9% of Census Tract 235.21's workers drive alone and 18.2% work from home. The average trip to work takes 20.4 minutes.
| Measure | Tract 235.21 | Blue Ash |
|---|---|---|
| In the labor force (age 16+) | 71.4%±6.0 pts | 66.9% |
| Unemployment rate | 2.0%±1.8 pts | 1.2% |
| Drove alone to work | 71.9%±7.8 pts | 66.2% |
| Carpooled | 7.4%±4.2 pts | 9.4% |
| Public transportation | 0.0%±2.8 pts | 0.1% |
| Walked | 1.1%±1.8 pts | 0.4% |
| Worked from home | 18.2%±7.4 pts | 23.1% |
| Mean travel time to work | 20.4 min±2.6 | 20.2 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 235.21 compare with the other tracts in Hamilton County?
Among Hamilton County's tracts with a reliable estimate, Census Tract 235.21 ranks as shown below (1 = highest).
| Measure | In Hamilton County | In Blue Ash |
|---|---|---|
| Population | 160th of 226 | 3rd of 3 |
| Residents per square mile | 205th of 226 | 3rd of 3 |
| Median household income | 50th of 216 | 3rd of 3 |
| Per capita income | 50th of 225 | 2nd of 3 |
| Median home value | 44th of 205 | 2nd of 3 |
| Median gross rent | 24th of 208 | 2nd of 3 |
| Bachelor's degree or higher | 43rd of 215 | 2nd of 3 |
| Median age | 88th of 226 | 2nd of 3 |
| Owner-occupied share | 59th of 223 | 1st of 3 |
The tracts next to it on Hamilton County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 53.02 | 47th | $102,552±$10,481 · within the margin of this tract |
| Tract 40 | 48th | $102,417±$21,430 · within the margin of this tract |
| Tract 250.01 | 49th | $101,707±$20,431 · within the margin of this tract |
| Tract 235.21 | 50th | $101,268±$14,064 |
| Tract 7 | 51st | $100,863±$13,365 · within the margin of this tract |
| Tract 52 | 52nd | $100,250±$29,455 · within the margin of this tract |
| Tract 20 | 53rd | $99,211±$18,100 · 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 235.21?
3 of the 18 figures for Census Tract 235.21 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