County · Ohio
Allen County, Ohio
Allen County, Ohio. Allen County had 100,881 residents in 2025 by the Census Bureau's estimate, down 1.3% since 2020, while Ohio grew 0.9%. It holds 24 places (9 cities, villages and boroughs, 12 towns and townships and 3 census-designated) and 35 census tracts. GEOID 39003.
Allen County is the county of the Lima, OH metropolitan statistical area (the Census Bureau's July 2023 delineation).
Residents, July 2025 estimate
100,881
Census Bureau estimate (no margin published)
2020 Census count: 102,206 · ACS 2020-2024: 101,348
Median household income
$64,038
±$1,778 (90% margin)
Ohio: $71,389
Median home value
$165,300
±$3,928 (90% margin)
Ohio: $214,800
Median gross rent
$922
±$24 (90% margin)
Ohio: $1,034
How many people live in Allen County, and is it growing?
The 2020 Census counted 102,206 residents in Allen County. The Census Bureau estimates 100,881 for July 1, 2025, down 1.3% since 2020, while Ohio grew 0.9%. The 2020-2024 American Community Survey puts the population at 101,348 over 403 square miles of land.
| Measure | Allen County | Ohio | Change since 2015-2019 |
|---|---|---|---|
| Total population | 101,348 | 11,810,293 | −1,827 |
| Households | 41,295±415 | 4,863,191 | +645 |
| Average household size | 2.38±0.02 | 2.37 | −0.06 |
| Housing units | 44,791±99 | 5,292,391 | −290 |
Allen County's population since 2000
From 108,473 in 2000 to 100,881 in 2025: down 7.0%. The 2000, 2010 and 2020 figures are census counts. 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); PEP Vintage 2025 (CO-EST2025); 2020 Census · Check it at data.census.gov
What cities and towns are in Allen County?
Allen County holds 24 places: 9 cities, villages and boroughs (incorporated places), 12 towns and townships (county subdivisions with their own government) and 3 census-designated places. The largest is Lima with 34,695 residents (2025 estimate). Places that cross a county line are listed with the share of their 2020 residents who live in this county.
| Lima | 35,579 | $46,240 |
|---|---|---|
| American Township | 14,538 | $65,407 |
| Shawnee Township | 12,482 | $92,758 |
| Bath Township, Allen County | 9,399 | $62,500 |
| Marion Township, Allen County | 6,629 | $64,671 |
| Fort Shawnee | 6,263 | $90,491 |
| Richland Township, Allen County | 5,871 | $83,482 |
| Delphos | 7,117 | $61,037 |
| Bluffton | 3,967 | $75,694 |
| Perry Township, Allen County | 3,382 | $53,371 |
| Jackson Township, Allen County | 3,143 | $88,487 |
| Spencer Township, Allen County | 3,067 | $62,654 |
| Auglaize Township, Allen County | 2,757 | $82,159 |
| Spencerville | 2,198 | $54,883 |
| Monroe Township, Allen County | 2,067 | $72,917 |
| Amanda Township, Allen County | 2,061 | $98,750 |
| Elida | 1,923 | $81,083 |
| Sugar Creek Township, Allen County | 1,231 | $100,250 |
| Cairo | 517 | $83,125 |
| Harrod | 423 | $72,813 |
| WestminsterGEOID 3983930 | 406 | $118,583 |
| Lafayette, Allen CountyGEOID 3941118 | 406 | $53,125 |
| GomerGEOID 3930814 | 345 | $70,000 |
| BeaverdamGEOID 3904752 | 319 | $86,964 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 place-by-county parts · Check it at data.census.gov
Who lives in Allen County?
The median resident of Allen County is 39.7 years old; 23.5% are under 18 and 19.1% are 65 or older. The largest group is non-Hispanic white residents at 79.0%, then non-Hispanic Black residents at 9.6%. 2.4% of residents were born outside the United States.
| Measure | Allen County | Ohio | Change since 2015-2019 |
|---|---|---|---|
| Median age | 39.7±0.3 | 39.7 | +0.5 |
| Under 18 years | 23.5% | 22.0% | – |
| 65 years and over | 19.1%±0.1 pts | 18.3% | – |
| Hispanic or Latino (any race) | 3.6% | 4.8% | +0.5 pts |
| White alone, not Hispanic | 79.0%±0.3 pts | 75.8% | −1.7 pts |
| Black or African American alone, not Hispanic | 9.6%±0.7 pts | 12.0% | −2.2 pts |
| Asian alone, not Hispanic | 0.9%±0.1 pts | 2.5% | no clear change |
| American Indian and Alaska Native alone, not Hispanic | 0.3%±0.2 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.1 pts | 0.0% | – |
| Two or more races, not Hispanic | 6.2%±0.8 pts | 4.3% | – |
| Some other race alone, not Hispanic | 0.4%±0.2 pts | 0.4% | – |
| Born outside the United States | 2.4%±0.4 pts | 5.2% | +0.9 pts |
| Speak a language other than English at home (age 5+) | 3.4%±0.5 pts | 8.0% | – |
| Civilian veterans (age 18+) | 7.2%±0.6 pts | 6.6% | – |
| With a disability | 16.2%±0.8 pts | 14.4% | – |
| No health insurance coverage | 5.9%±0.8 pts | 6.4% | no clear change |
| High school graduate or higher (age 25+) | 92.5%±0.7 pts | 91.8% | – |
| Bachelor's degree or higher (age 25+) | 20.1%±1.3 pts | 31.5% | no clear change |
| Graduate or professional degree (age 25+) | 7.8%±0.7 pts | 12.2% | – |
| Moved from another state in the past year | 2.0%±0.5 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 Allen County earn?
Half of Allen County's 41,295 households earn less than $64,038 a year (±$1,778), against $71,389 in Ohio. In 2015-2019 it was $65,388 in 2024 dollars; the margins of error cannot tell the two periods apart. 13.3% of residents live below the poverty line.
| Measure | Allen County | Ohio | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $64,038±$1,778 | $71,389 | no clear change |
| Mean household income | $82,511±$2,665 | $96,990 | – |
| Per capita income | $34,331±$997 | $40,552 | +$1,396 |
| People below the poverty line | 13.3%±1.2 pts | 13.3% | no clear change |
| Children under 18 below the poverty line | 16.9%±2.6 pts | 17.8% | −3.7 pts |
| Households receiving SNAP | 13.8%±1.2 pts | 12.5% | – |
| Households with a broadband subscription | 88.8%±1.3 pts | 90.1% | – |
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 Allen County?
Owners occupy 67.7% of Allen County's occupied homes and renters 32.3%. The median owner-occupied home is valued at $165,300 by its owner (±$3,928). The median renter pays $922 a month including utilities, and 34.9% of renters pay 35% or more of their income on rent.
| Measure | Allen County | Ohio | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $165,300±$3,928 | $214,800 | +$19,955 |
| Median gross rent | $922±$24 | $1,034 | +$57 |
| Renters paying 35% or more of income on rent | 34.9%±3.1 pts | 37.3% | no clear change |
| Median monthly owner costs, with a mortgage | $1,240±$27 | $1,517 | – |
| Owner-occupied homes | 67.7%±1.6 pts | 67.2% | no clear change |
| Housing units | 44,791±99 | 5,292,391 | −290 |
| Homeowner vacancy rate | 0.8%±0.4 pts | 0.8% | – |
| Rental vacancy rate | 2.5%±1.2 pts | 4.4% | – |
| Single-family detached homes | 77.0%±1.4 pts | 68.8% | – |
| Mobile homes | 4.3%±0.8 pts | 3.4% | – |
| Built 2020 or later | 0.6%±0.3 pts | 1.1% | – |
| Built 1939 or earlier | 21.7%±1.3 pts | 19.0% | – |
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 many new homes is Allen County building?
Builders took permits for 157 new housing units across Allen County in 2025 (121 single-family), 1.6 per 1,000 residents.
Source: Building Permits Survey, annual county files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Allen County get to work?
82.8% of Allen County's workers drive alone and 4.8% work from home. The average trip to work takes 18.7 minutes. The unemployment rate in 2020-2024 averaged 5.7%.
| Measure | Allen County | Ohio | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 60.8%±1.1 pts | 63.1% | – |
| Unemployment rate | 5.7%±1.0 pts | 4.8% | no clear change |
| Drove alone to work | 82.8%±1.3 pts | 75.1% | – |
| Carpooled | 8.9%±1.0 pts | 7.5% | – |
| Public transportation | 0.4%±0.2 pts | 1.0% | – |
| Walked | 1.2%±0.3 pts | 2.0% | – |
| Worked from home | 4.8%±0.7 pts | 13.0% | +2.0 pts |
| Mean travel time to work | 18.7 min±0.6 | 23.4 min | −1.0 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 are Allen County's census tracts?
Allen County is divided into 35 census tracts. Among those with a reliable estimate, median household income runs from $25,353 (Tract 141) to $111,275 (Tract 113.02).
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov
How does Allen County compare with Ohio's other counties?
| Measure | Rank |
|---|---|
| Population | 26th of 88 |
| Growth 2020-2025 | 67th of 88 |
| Residents per square mile | 24th of 88 |
| Median household income | 54th of 88 |
| Median home value | 56th of 88 |
| Median gross rent | 30th of 88 |
| Poverty rate | 38th of 88 |
| Bachelor's degree or higher | 45th of 88 |
| Median age | 70th of 88 |
Source: PlainCities ranks 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 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 Allen 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.