Township · Ohio
Harlan Township, Ohio
Harlan Township, township, in Warren County, Ohio. Harlan Township had 5,336 residents on July 1, 2025 by the Census Bureau's estimate, up 8.2% since 2020; the 2020 Census counted 4,929 and the ACS 2020-2024 5-year estimates put it at 5,132 (±20). GEOID 3916533474.
Residents, July 2025 estimate
5,336
Census Bureau estimate (no margin published)
2020 Census count: 4,929 · ACS 2020-2024: 5,132 ±20
Median household income
$108,214
±$9,680 (90% margin)
Ohio: $71,389
Median home value
$326,900
±$25,868 (90% margin)
Ohio: $214,800
Median gross rent
$1,375
±$78 (90% margin)
Ohio: $1,034
Where is Harlan Township and what county is it in?
Harlan Township is a township in Warren County, Ohio. It covers 45.4 square miles of land, 108 residents per square mile in 2020.
2 places lie inside Harlan Township: Butlerville (village, 155 in 2020) and Pleasant Plain (village, 129 in 2020). Part of Blanchester (village) also lies in it.
Harlan Township is in the Cincinnati, OH-KY-IN metropolitan statistical area, which takes in 15 counties (Census Bureau delineation, July 2023).
Harlan Township is the same area as Census Tract 324 of Warren County: the tract's figures are Harlan Township's own.
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Harlan Township, and is it growing?
The Census Bureau estimates that 5,336 people lived in Harlan Township on July 1, 2025, up 8.2% since 2020, faster than Ohio (+0.9%). The 2020 Census counted 4,929 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 5,132 (±20).
| Measure | Harlan Township | Warren County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 5,132±20 | 250,008 | no clear change |
| Households | 1,688±164 | 92,052 | −284 |
| Average household size | 3.04±0.30 | 2.66 | +0.43 |
| Housing units | 1,753±170 | 96,061 | −347 |
Harlan Township's population since 2000
From 3,627 in 2000 to 5,336 in 2025: up 47.1%. The 2000, 2010 and 2020 figures are census counts, each for Harlan Township 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 Harlan Township?
The median resident of Harlan Township is 42.0 years old; 28.1% are under 18 and 17.2% are 65 or older. The largest group is non-Hispanic white residents at 98.0%, then non-Hispanic residents of two or more races at 1.2%.
| Measure | Harlan Township | Warren County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 42.0±3.0 | 40.1 | no clear change |
| Under 18 years | 28.1%±5.0 pts | 23.8% | – |
| 65 years and over | 17.2%±3.0 pts | 15.8% | – |
| Male | 52.0%±3.5 pts | 50.6% | – |
| Hispanic or Latino (any race) | 0.2%±0.2 pts | 3.5% | – |
| White alone, not Hispanic | 98.0%±1.4 pts | 81.8% | no clear change |
| Black or African American alone, not Hispanic | 0.4%±0.6 pts | 3.2% | – |
| Asian alone, not Hispanic | 0.1%±0.1 pts | 7.2% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.1%±0.1 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.7 pts | 0.0% | – |
| Two or more races, not Hispanic | 1.2%±1.1 pts | 3.6% | – |
| Some other race alone, not Hispanic | 0.0%±0.7 pts | 0.7% | – |
| Born outside the United States | 0.4%±0.4 pts | 9.1% | – |
| Speak a language other than English at home (age 5+) | 1.9%±1.3 pts | 10.8% | – |
| Civilian veterans (age 18+) | 6.3%±2.1 pts | 6.7% | – |
| With a disability | 12.2%±3.5 pts | 10.5% | – |
| No health insurance coverage | 2.0%±1.2 pts | 3.9% | no clear change |
| High school graduate or higher (age 25+) | 95.6%±1.8 pts | 95.1% | – |
| Bachelor's degree or higher (age 25+) | 30.2%±5.7 pts | 45.6% | no clear change |
| Graduate or professional degree (age 25+) | 9.9%±3.9 pts | 18.4% | – |
| Lived in the same house a year earlier | 95.8%±2.5 pts | 90.0% | – |
| Moved from another state in the past year | 0.0%±0.7 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 Harlan Township earn?
Half of Harlan Township's 1,688 households earn less than $108,214 a year (±$9,680), against $110,132 in Warren County and $71,389 in Ohio. In 2015-2019 it was $117,446 in 2024 dollars; the margins of error cannot tell the two periods apart. 5.6% of residents live below the poverty line.
| Measure | Harlan Township | Warren County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $108,214±$9,680 | $110,132 | no clear change |
| Mean household income | $136,627±$16,302 | $145,195 | – |
| Per capita income | $46,373±$5,492 | $53,621 | no clear change |
| People below the poverty line | 5.6%±3.0 pts | 6.0% | no clear change |
| Children under 18 below the poverty line | 2.2%±2.4 pts | 6.5% | – |
| Households receiving SNAP | 1.7%±1.3 pts | 4.6% | – |
| Households with a computer | 97.6%±1.6 pts | 97.5% | – |
| Households with a broadband subscription | 89.1%±4.8 pts | 94.9% | – |
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 Harlan Township?
Owners occupy 91.4% of Harlan Township's occupied homes and renters 8.6%. The median owner-occupied home is valued at $326,900 by its owner (±$25,868). The median renter pays $1,375 a month including utilities, and 50.9% of renters pay 35% or more of their income on rent.
| Measure | Harlan Township | Warren County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $326,900±$25,868 | $349,400 | +$42,979 |
| Median gross rent | $1,375±$78 | $1,361 | +$202 |
| Renters paying 35% or more of income on rent | 50.9%±27.2 pts | 32.4% | no clear change |
| Median monthly owner costs, with a mortgage | $1,711±$162 | $1,974 | – |
| Owner-occupied homes | 91.4%±3.7 pts | 79.4% | no clear change |
| Renter-occupied homes | 8.6%±3.7 pts | 20.6% | – |
| Housing units | 1,753±170 | 96,061 | −347 |
| Homeowner vacancy rate | 0.0%±2.4 pts | 0.4% | – |
| Rental vacancy rate | 0.0%±22.5 pts | 5.4% | – |
| Single-family detached homes | 99.7%±0.4 pts | 76.6% | – |
| Mobile homes | 0.1%±0.1 pts | 1.0% | – |
| Built 2020 or later | 0.2%±0.3 pts | 3.2% | – |
| Built 2010 to 2019 | 10.1%±6.1 pts | 13.8% | – |
| Built 1939 or earlier | 9.8%±3.5 pts | 5.6% | – |
| Households with no vehicle | 1.9%±1.4 pts | 3.1% | – |
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 Harlan Township work and get to work?
79.7% of Harlan Township's workers drive alone and 14.0% work from home. The average trip to work takes 35.1 minutes.
| Measure | Harlan Township | Warren County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 63.0%±5.4 pts | 66.1% | – |
| Unemployment rate | 2.5%±1.9 pts | 3.1% | – |
| Drove alone to work | 79.7%±6.6 pts | 73.7% | – |
| Carpooled | 3.9%±3.8 pts | 5.9% | – |
| Public transportation | 0.0%±1.6 pts | 0.1% | – |
| Walked | 2.1%±1.9 pts | 0.6% | – |
| Worked from home | 14.0%±5.1 pts | 18.6% | no clear change |
| Mean travel time to work | 35.1 min±4.0 | 25.3 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 Harlan Township?
1 census tract lies mostly in Harlan Township (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 324Warren County | 5,132 | $108,214 |
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 Harlan Township) · Census block assignment files
How does Harlan Township compare with other places in Ohio?
By the Census Bureau's July 2025 estimates, Harlan Township is the 2,187th-most populous of the 16,079 U.S. towns and townships that have one and the 253rd-most populous of 1,311 in Ohio.
Harlan Township ranks 196th 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 | 253rd | 1,311 |
| Growth 2020-2025 (PEP) | 72nd | 1,589 |
| Residents per square mile | 1,109th | 1,734 |
| Median household income | 196th | 1,699 |
| Per capita income | 331st | 1,729 |
| Median home value | 187th | 1,707 |
| Median gross rent | 133rd | 1,453 |
| Poverty rate | 953rd | 1,116 |
| Bachelor's degree or higher | 448th | 1,613 |
| Median age | 853rd | 1,727 |
| Owner-occupied share | 263rd | 1,732 |
| Work from home | 353rd | 990 |
| Travel time to work | 118th | 1,731 |
Harlan Township's figures with every place in Ohio (CSV)
Every place in Ohio, sortable · Compare Harlan Township 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 Harlan Township?
21 of the 57 figures for Harlan Township 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 Harlan Township 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.