Township · Ohio
Fairfield Township, Butler County, Ohio
Fairfield Township, Butler County, township, in Butler County, Ohio. Fairfield Township, Butler County had 23,392 residents on July 1, 2025 by the Census Bureau's estimate, up 3.4% since 2020; the 2020 Census counted 22,645 and the ACS 2020-2024 5-year estimates put it at 22,928 (±25). GEOID 3901725984.
Residents, July 2025 estimate
23,392
Census Bureau estimate (no margin published)
2020 Census count: 22,645 · ACS 2020-2024: 22,928 ±25
Median household income
$108,353
±$9,202 (90% margin)
Ohio: $71,389
Median home value
$287,100
±$14,833 (90% margin)
Ohio: $214,800
Median gross rent
$1,198
±$761 (90% margin)
Ohio: $1,034
Where is Fairfield Township, Butler County and what county is it in?
Fairfield Township, Butler County is a township in Butler County, Ohio. It covers 15.8 square miles of land, 1,436 residents per square mile in 2020.
Fairfield Township, Butler 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 Fairfield Township, Butler County, and is it growing?
The Census Bureau estimates that 23,392 people lived in Fairfield Township, Butler County on July 1, 2025, up 3.4% since 2020, faster than Ohio (+0.9%). The 2020 Census counted 22,645 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 22,928 (±25).
| Measure | Fairfield Township, Butler County | Butler County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 22,928±25 | 392,876 | +388 |
| Households | 8,577±348 | 146,822 | +886 |
| Average household size | 2.64±0.11 | 2.60 | −0.26 |
| Housing units | 8,779±356 | 155,372 | +665 |
Fairfield Township, Butler County's population since 2000
From 15,571 in 2000 to 23,392 in 2025: up 50.2%. The 2000, 2010 and 2020 figures are census counts, each for Fairfield Township, Butler 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 Fairfield Township, Butler County?
The median resident of Fairfield Township, Butler County is 44.1 years old; 21.2% are under 18 and 18.6% are 65 or older. The largest group is non-Hispanic white residents at 72.2%, then non-Hispanic Black residents at 14.8%. 11.2% of residents were born outside the United States.
| Measure | Fairfield Township, Butler County | Butler County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 44.1±2.0 | 37.2 | +4.4 |
| Under 18 years | 21.2%±2.1 pts | 23.4% | – |
| 65 years and over | 18.6%±2.2 pts | 15.9% | – |
| Male | 48.5%±2.3 pts | 49.4% | – |
| Hispanic or Latino (any race) | 3.4%±2.2 pts | 7.0% | no clear change |
| White alone, not Hispanic | 72.2%±4.8 pts | 74.6% | −6.9 pts |
| Black or African American alone, not Hispanic | 14.8%±4.3 pts | 8.3% | +7.6 pts |
| Asian alone, not Hispanic | 6.5%±2.5 pts | 4.3% | no clear change |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±0.2 pts | 0.0% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.2 pts | 0.1% | – |
| Two or more races, not Hispanic | 2.7%±1.6 pts | 5.3% | – |
| Some other race alone, not Hispanic | 0.4%±0.4 pts | 0.5% | – |
| Born outside the United States | 11.2%±3.0 pts | 8.0% | +4.5 pts |
| Speak a language other than English at home (age 5+) | 12.6%±3.6 pts | 10.7% | – |
| Civilian veterans (age 18+) | 5.8%±1.5 pts | 5.9% | – |
| With a disability | 11.5%±2.2 pts | 12.5% | – |
| No health insurance coverage | 4.2%±1.5 pts | 6.2% | no clear change |
| High school graduate or higher (age 25+) | 95.6%±1.6 pts | 91.2% | – |
| Bachelor's degree or higher (age 25+) | 36.5%±3.6 pts | 32.8% | +11.7 pts |
| Graduate or professional degree (age 25+) | 13.6%±2.3 pts | 11.7% | – |
| Lived in the same house a year earlier | 91.3%±2.2 pts | 87.1% | – |
| Moved from another state in the past year | 1.4%±0.9 pts | 1.9% | – |
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 Fairfield Township, Butler County earn?
Half of Fairfield Township, Butler County's 8,577 households earn less than $108,353 a year (±$9,202), against $81,590 in Butler County and $71,389 in Ohio. In 2015-2019 it was $104,283 in 2024 dollars; the margins of error cannot tell the two periods apart.
| Measure | Fairfield Township, Butler County | Butler County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $108,353±$9,202 | $81,590 | no clear change |
| Mean household income | $119,745±$10,178 | $104,738 | – |
| Per capita income | $45,674±$3,886 | $40,027 | +$5,992 |
| People below the poverty line | 4.7%±4.0 pts | 11.8% | – |
| Children under 18 below the poverty line | 5.6%±8.1 pts | 13.1% | – |
| Households receiving SNAP | 4.9%±2.0 pts | 9.8% | – |
| Households with a computer | 96.9%±2.0 pts | 95.5% | – |
| Households with a broadband subscription | 95.5%±2.5 pts | 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 Fairfield Township, Butler County?
Owners occupy 92.8% of Fairfield Township, Butler County's occupied homes and renters 7.2%. The median owner-occupied home is valued at $287,100 by its owner (±$14,833). The median renter pays $1,198 a month including utilities, and 53.1% of renters pay 35% or more of their income on rent.
| Measure | Fairfield Township, Butler County | Butler County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $287,100±$14,833 | $258,500 | +$52,161 |
| Median gross rent | $1,198±$761 | $1,135 | no clear change |
| Renters paying 35% or more of income on rent | 53.1%±23.0 pts | 40.3% | no clear change |
| Median monthly owner costs, with a mortgage | $1,705±$96 | $1,665 | – |
| Owner-occupied homes | 92.8%±2.8 pts | 69.9% | +5.4 pts |
| Renter-occupied homes | 7.2%±2.8 pts | 30.1% | – |
| Housing units | 8,779±356 | 155,372 | +665 |
| Homeowner vacancy rate | 0.0%±0.5 pts | 0.8% | – |
| Rental vacancy rate | 0.0%±4.8 pts | 4.5% | – |
| Single-family detached homes | 92.2%±2.7 pts | 72.4% | – |
| Mobile homes | 1.4%±1.3 pts | 2.3% | – |
| Built 2020 or later | 0.6%±0.6 pts | 0.9% | – |
| Built 2010 to 2019 | 13.2%±3.6 pts | 7.1% | – |
| Built 1939 or earlier | 1.8%±1.1 pts | 10.7% | – |
| Households with no vehicle | 3.8%±2.2 pts | 4.7% | – |
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 Fairfield Township, Butler County work and get to work?
77.5% of Fairfield Township, Butler County's workers drive alone and 16.4% work from home. The average trip to work takes 24.2 minutes. The unemployment rate in 2020-2024 averaged 4.6%.
| Measure | Fairfield Township, Butler County | Butler County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 64.2%±3.2 pts | 63.9% | – |
| Unemployment rate | 4.6%±2.4 pts | 5.1% | no clear change |
| Drove alone to work | 77.5%±3.4 pts | 75.1% | – |
| Carpooled | 5.9%±3.2 pts | 8.1% | – |
| Public transportation | 0.0%±0.1 pts | 0.3% | – |
| Walked | 0.1%±0.3 pts | 1.7% | – |
| Worked from home | 16.4%±4.2 pts | 13.3% | +12.7 pts |
| Mean travel time to work | 24.2 min±1.5 | 24.3 min | no clear change |
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 Fairfield Township, Butler County?
4 census tracts lie mostly in Fairfield Township, Butler County, and 6 more reach into it (2020 census blocks). Their median household incomes run from $58,832 (Tract 110.04) to $117,293 (Tract 110.05).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 110.05Butler County | 7,404 | $117,293 |
| Tract 110.03Butler County | 7,325 | $116,615 |
| Tract 110.06Butler County | 5,650 | $112,632 |
| Tract 110.04Butler County | 6,790 | $58,832 |
| Tract 109.11Butler County | 3,882 | $88,785 |
| Tract 5Butler County | 4,948 | $43,641 |
| Tract 108Butler County | 6,503 | $82,241 |
| Tract 109.09Butler County | 5,170 | $61,409 |
| Tract 4Butler County | 3,867 | $36,451 |
| Tract 146Butler County | 1,281 | $43,497 |
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 Fairfield Township, Butler County) · Census block assignment files
How does Fairfield Township, Butler County compare with other places in Ohio?
By the Census Bureau's July 2025 estimates, Fairfield Township, Butler County is the 495th-most populous of the 16,079 U.S. towns and townships that have one and the 44th-most populous of 1,311 in Ohio.
Fairfield Township, Butler County ranks 194th 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 | 44th | 1,311 |
| Growth 2020-2025 (PEP) | 222nd | 1,589 |
| Residents per square mile | 402nd | 1,734 |
| Median household income | 194th | 1,699 |
| Per capita income | 350th | 1,729 |
| Median home value | 297th | 1,707 |
| Median gross rent | 232nd | 1,453 |
| Bachelor's degree or higher | 283rd | 1,613 |
| Median age | 622nd | 1,727 |
| Owner-occupied share | 205th | 1,732 |
| Work from home | 269th | 990 |
| Travel time to work | 884th | 1,731 |
Fairfield Township, Butler County's figures with every place in Ohio (CSV)
Every place in Ohio, sortable · Compare Fairfield Township, Butler 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 Fairfield Township, Butler County?
11 of the 57 figures for Fairfield Township, Butler 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 Fairfield Township, Butler 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.