Township · Ohio
Union Township, Clermont County, Ohio
Union Township, Clermont County, township, in Clermont County, Ohio. Union Township, Clermont County had 51,713 residents on July 1, 2025 by the Census Bureau's estimate, up 4.2% since 2020; the 2020 Census counted 49,639 and the ACS 2020-2024 5-year estimates put it at 50,264 (±46). GEOID 3902578288.
Residents, July 2025 estimate
51,713
Census Bureau estimate (no margin published)
2020 Census count: 49,639 · ACS 2020-2024: 50,264 ±46
Median household income
$80,112
±$6,874 (90% margin)
Ohio: $71,389
Median home value
$265,100
±$6,834 (90% margin)
Ohio: $214,800
Median gross rent
$1,180
±$34 (90% margin)
Ohio: $1,034
Where is Union Township, Clermont County and what county is it in?
Union Township, Clermont County is a township in Clermont County, Ohio. It covers 29.0 square miles of land, 1,713 residents per square mile in 2020.
3 places lie inside Union Township (Clermont County): Withamsville (CDP, 7,357 in 2020), Summerside (CDP, 4,941 in 2020) and Mount Carmel (CDP, 4,828 in 2020).
Union Township, Clermont County is in the Cincinnati, OH-KY-IN metropolitan statistical area, which takes in 15 counties (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Union Township, Clermont County, and is it growing?
The Census Bureau estimates that 51,713 people lived in Union Township, Clermont County on July 1, 2025, up 4.2% since 2020, faster than Ohio (+0.9%). The 2020 Census counted 49,639 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 50,264 (±46).
| Measure | Union Township, Clermont County | Clermont County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 50,264±46 | 211,181 | +2,249 |
| Households | 21,497±542 | 84,955 | +2,093 |
| Average household size | 2.32±0.06 | 2.46 | −0.14 |
| Housing units | 22,088±531 | 88,470 | +1,527 |
Union Township, Clermont County's population since 2000
From 42,332 in 2000 to 51,713 in 2025: up 22.2%. The 2000, 2010 and 2020 figures are census counts, each for Union Township, Clermont County as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
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 Union Township, Clermont County?
The median resident of Union Township, Clermont County is 38.2 years old; 20.9% are under 18 and 17.3% are 65 or older. The largest group is non-Hispanic white residents at 86.7%, then non-Hispanic residents of two or more races at 4.2%. 4.0% of residents were born outside the United States.
| Measure | Union Township, Clermont County | Clermont County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 38.2±1.4 | 40.8 | no clear change |
| Under 18 years | 20.9%±1.1 pts | 22.1% | – |
| 65 years and over | 17.3%±1.0 pts | 18.4% | – |
| Male | 49.1%±1.2 pts | 49.6% | – |
| Hispanic or Latino (any race) | 3.8%±0.9 pts | 2.6% | +1.5 pts |
| White alone, not Hispanic | 86.7%±1.6 pts | 90.6% | −4.7 pts |
| Black or African American alone, not Hispanic | 2.3%±0.9 pts | 1.5% | +1.0 pts |
| Asian alone, not Hispanic | 2.4%±0.7 pts | 1.1% | no clear change |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±0.1 pts | 0.0% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.1 pts | 0.0% | – |
| Two or more races, not Hispanic | 4.2%±1.1 pts | 3.6% | – |
| Some other race alone, not Hispanic | 0.6%±0.4 pts | 0.5% | – |
| Born outside the United States | 4.0%±1.0 pts | 2.3% | no clear change |
| Speak a language other than English at home (age 5+) | 4.9%±1.0 pts | 3.4% | – |
| Civilian veterans (age 18+) | 7.2%±1.2 pts | 7.1% | – |
| With a disability | 12.2%±1.3 pts | 14.6% | – |
| No health insurance coverage | 6.0%±1.1 pts | 5.8% | +2.0 pts |
| High school graduate or higher (age 25+) | 93.4%±1.3 pts | 92.1% | – |
| Bachelor's degree or higher (age 25+) | 34.0%±2.0 pts | 31.6% | +4.4 pts |
| Graduate or professional degree (age 25+) | 12.0%±1.3 pts | 12.1% | – |
| Lived in the same house a year earlier | 86.7%±2.0 pts | 89.3% | – |
| Moved from another state in the past year | 2.0%±0.6 pts | 1.6% | – |
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 Union Township, Clermont County earn?
Half of Union Township, Clermont County's 21,497 households earn less than $80,112 a year (±$6,874), against $85,510 in Clermont County and $71,389 in Ohio. In 2015-2019 it was $74,644 in 2024 dollars; the margins of error cannot tell the two periods apart. 9.0% of residents live below the poverty line.
| Measure | Union Township, Clermont County | Clermont County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $80,112±$6,874 | $85,510 | no clear change |
| Mean household income | $103,976±$6,821 | $108,776 | – |
| Per capita income | $44,459±$2,441 | $44,226 | +$5,046 |
| People below the poverty line | 9.0%±1.8 pts | 9.1% | no clear change |
| Children under 18 below the poverty line | 11.3%±4.1 pts | 9.9% | no clear change |
| Households receiving SNAP | 6.5%±1.6 pts | 7.9% | – |
| Households with a computer | 95.6%±1.3 pts | 95.7% | – |
| Households with a broadband subscription | 92.8%±1.6 pts | 92.6% | – |
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 Union Township, Clermont County?
Owners occupy 61.7% of Union Township, Clermont County's occupied homes and renters 38.3%. The median owner-occupied home is valued at $265,100 by its owner (±$6,834). The median renter pays $1,180 a month including utilities, and 27.5% of renters pay 35% or more of their income on rent.
| Measure | Union Township, Clermont County | Clermont County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $265,100±$6,834 | $266,200 | +$63,389 |
| Median gross rent | $1,180±$34 | $1,107 | +$90 |
| Renters paying 35% or more of income on rent | 27.5%±5.5 pts | 32.5% | no clear change |
| Median monthly owner costs, with a mortgage | $1,646±$54 | $1,677 | – |
| Owner-occupied homes | 61.7%±2.3 pts | 73.6% | no clear change |
| Renter-occupied homes | 38.3%±2.3 pts | 26.4% | – |
| Housing units | 22,088±531 | 88,470 | +1,527 |
| Homeowner vacancy rate | 0.3%±0.4 pts | 0.2% | – |
| Rental vacancy rate | 2.8%±1.8 pts | 3.2% | – |
| Single-family detached homes | 58.9%±1.9 pts | 69.9% | – |
| Mobile homes | 0.3%±0.4 pts | 5.9% | – |
| Built 2020 or later | 2.3%±0.7 pts | 2.1% | – |
| Built 2010 to 2019 | 9.4%±1.5 pts | 8.9% | – |
| Built 1939 or earlier | 2.0%±0.7 pts | 6.0% | – |
| Households with no vehicle | 4.5%±1.5 pts | 4.6% | – |
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 Union Township, Clermont County work and get to work?
78.1% of Union Township, Clermont County's workers drive alone and 14.7% work from home. The average trip to work takes 24.2 minutes. The unemployment rate in 2020-2024 averaged 3.2%.
| Measure | Union Township, Clermont County | Clermont County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 69.8%±2.2 pts | 64.3% | – |
| Unemployment rate | 3.2%±0.9 pts | 4.2% | no clear change |
| Drove alone to work | 78.1%±2.6 pts | 78.0% | – |
| Carpooled | 6.2%±1.5 pts | 6.4% | – |
| Public transportation | 0.1%±0.1 pts | 0.3% | – |
| Walked | 0.1%±0.1 pts | 0.8% | – |
| Worked from home | 14.7%±2.4 pts | 13.6% | +11.3 pts |
| Mean travel time to work | 24.2 min±0.9 | 28.1 min | −2.1 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
What census tracts are in Union Township, Clermont County?
11 census tracts lie mostly in Union Township, Clermont County (2020 census blocks). Their median household incomes run from $62,145 (Tract 413.06) to $146,953 (Tract 414.06).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 413.06Clermont County | 6,259 | $62,145 |
| Tract 413.03Clermont County | 5,218 | $90,972 |
| Tract 412.02Clermont County | 5,188 | $94,748 |
| Tract 414.05Clermont County | 5,118 | $71,062 |
| Tract 413.05Clermont County | 5,031 | $85,470 |
| Tract 414.06Clermont County | 5,438 | $146,953 |
| Tract 414.04Clermont County | 4,705 | $72,756 |
| Tract 413.07Clermont County | 4,743 | $79,821 |
| Tract 414.03Clermont County | 4,416 | $70,326 |
| Tract 412.01Clermont County | 4,139 | $77,621 |
| Tract 413.04Clermont County | 9 | not published |
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 Union Township, Clermont County) · Census block assignment files
How does Union Township, Clermont County compare with other places in Ohio?
By the Census Bureau's July 2025 estimates, Union Township, Clermont County is the 150th-most populous of the 16,079 U.S. towns and townships that have one and the 8th-most populous of 1,311 in Ohio.
Union Township, Clermont County ranks 660th of 1,699 places in Ohio with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 8th | 1,311 |
| Growth 2020-2025 (PEP) | 162nd | 1,589 |
| Residents per square mile | 315th | 1,734 |
| Median household income | 660th | 1,699 |
| Per capita income | 398th | 1,729 |
| Median home value | 377th | 1,707 |
| Median gross rent | 241st | 1,453 |
| Poverty rate | 680th | 1,116 |
| Bachelor's degree or higher | 342nd | 1,613 |
| Median age | 1,284th | 1,727 |
| Owner-occupied share | 1,505th | 1,732 |
| Work from home | 328th | 990 |
| Travel time to work | 884th | 1,731 |
Union Township, Clermont County's figures with every place in Ohio (CSV)
Every place in Ohio, sortable · Compare Union Township, Clermont County 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 Union Township, Clermont County?
7 of the 57 figures for Union Township, Clermont County 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 Union Township, Clermont County 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.