Township · Ohio
Marion Township, Allen County, Ohio
Marion Township, Allen County, township, in Allen County, Ohio. Marion Township, Allen County had 6,619 residents on July 1, 2025 by the Census Bureau's estimate, down 0.1% since 2020; the 2020 Census counted 6,629 and the ACS 2020-2024 5-year estimates put it at 6,676 (±20). GEOID 3900347656.
Residents, July 2025 estimate
6,619
Census Bureau estimate (no margin published)
2020 Census count: 6,629 · ACS 2020-2024: 6,676 ±20
Median household income
$64,671
±$6,444 (90% margin)
Ohio: $71,389
Median home value
$161,200
±$15,390 (90% margin)
Ohio: $214,800
Median gross rent
$833
±$64 (90% margin)
Ohio: $1,034
Where is Marion Township, Allen County and what county is it in?
Marion Township, Allen County is a township in Allen County, Ohio. It covers 42.4 square miles of land, 156 residents per square mile in 2020.
One place lies inside Marion Township (Allen County): Delphos (city, 7,117 in 2020).
Marion Township, Allen County is in the Lima, OH metropolitan statistical area (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 Marion Township, Allen County, and is it growing?
The Census Bureau estimates that 6,619 people lived in Marion Township, Allen County on July 1, 2025, down 0.1% since 2020, while Ohio grew 0.9%. The 2020 Census counted 6,629 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 6,676 (±20).
| Measure | Marion Township, Allen County | Allen County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 6,676±20 | 101,348 | −125 |
| Households | 2,892±233 | 41,295 | no clear change |
| Average household size | 2.26±0.18 | 2.38 | −0.26 |
| Housing units | 2,991±244 | 44,791 | no clear change |
Marion Township, Allen County's population since 2000
From 6,773 in 2000 to 6,619 in 2025: down 2.3%. The 2000, 2010 and 2020 figures are census counts, each for Marion Township, Allen 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 Marion Township, Allen County?
The median resident of Marion Township, Allen County is 40.1 years old; 25.5% are under 18 and 24.1% are 65 or older. The largest group is non-Hispanic white residents at 90.3%, then non-Hispanic residents of two or more races at 6.3%.
| Measure | Marion Township, Allen County | Allen County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 40.1±4.1 | 39.7 | no clear change |
| Under 18 years | 25.5%±3.8 pts | 23.5% | – |
| 65 years and over | 24.1%±3.7 pts | 19.1% | – |
| Male | 51.9%±3.3 pts | 49.9% | – |
| Hispanic or Latino (any race) | 1.2%±0.9 pts | 3.6% | – |
| White alone, not Hispanic | 90.3%±3.5 pts | 79.0% | −5.0 pts |
| Black or African American alone, not Hispanic | 2.2%±1.3 pts | 9.6% | – |
| Asian alone, not Hispanic | 0.0%±0.6 pts | 0.9% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±0.1 pts | 0.3% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.6 pts | 0.0% | – |
| Two or more races, not Hispanic | 6.3%±2.8 pts | 6.2% | – |
| Some other race alone, not Hispanic | 0.0%±0.6 pts | 0.4% | – |
| Born outside the United States | 0.9%±0.7 pts | 2.4% | – |
| Speak a language other than English at home (age 5+) | 0.6%±0.6 pts | 3.4% | – |
| Civilian veterans (age 18+) | 10.0%±3.2 pts | 7.2% | – |
| With a disability | 18.7%±4.1 pts | 16.2% | – |
| No health insurance coverage | 2.8%±1.3 pts | 5.9% | no clear change |
| High school graduate or higher (age 25+) | 91.7%±3.7 pts | 92.5% | – |
| Bachelor's degree or higher (age 25+) | 21.9%±4.5 pts | 20.1% | no clear change |
| Graduate or professional degree (age 25+) | 7.9%±2.5 pts | 7.8% | – |
| Lived in the same house a year earlier | 84.8%±6.6 pts | 88.0% | – |
| Moved from another state in the past year | 2.5%±3.0 pts | 2.0% | – |
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 Marion Township, Allen County earn?
Half of Marion Township, Allen County's 2,892 households earn less than $64,671 a year (±$6,444), against $64,038 in Allen County and $71,389 in Ohio. In 2015-2019 the median was $78,149 in 2024 dollars, so it fell by $13,478 after inflation. 10.2% of residents live below the poverty line.
| Measure | Marion Township, Allen County | Allen County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $64,671±$6,444 | $64,038 | −$13,478 |
| Mean household income | $83,509±$8,824 | $82,511 | – |
| Per capita income | $36,857±$3,448 | $34,331 | no clear change |
| People below the poverty line | 10.2%±3.5 pts | 13.3% | no clear change |
| Children under 18 below the poverty line | 12.2%±7.5 pts | 16.9% | – |
| Households receiving SNAP | 9.5%±3.3 pts | 13.8% | – |
| Households with a computer | 88.6%±6.6 pts | 93.3% | – |
| Households with a broadband subscription | 82.3%±7.4 pts | 88.8% | – |
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 Marion Township, Allen County?
Owners occupy 77.0% of Marion Township, Allen County's occupied homes and renters 23.0%. The median owner-occupied home is valued at $161,200 by its owner (±$15,390). The median renter pays $833 a month including utilities, and 29.7% of renters pay 35% or more of their income on rent.
| Measure | Marion Township, Allen County | Allen County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $161,200±$15,390 | $165,300 | no clear change |
| Median gross rent | $833±$64 | $922 | no clear change |
| Renters paying 35% or more of income on rent | 29.7%±11.6 pts | 34.9% | no clear change |
| Median monthly owner costs, with a mortgage | $1,168±$163 | $1,240 | – |
| Owner-occupied homes | 77.0%±5.8 pts | 67.7% | no clear change |
| Renter-occupied homes | 23.0%±5.8 pts | 32.3% | – |
| Housing units | 2,991±244 | 44,791 | no clear change |
| Homeowner vacancy rate | 0.0%±1.7 pts | 0.8% | – |
| Rental vacancy rate | 0.0%±5.5 pts | 2.5% | – |
| Single-family detached homes | 84.0%±4.8 pts | 77.0% | – |
| Mobile homes | 2.7%±1.4 pts | 4.3% | – |
| Built 2020 or later | 0.0%±1.2 pts | 0.6% | – |
| Built 2010 to 2019 | 0.7%±0.8 pts | 3.7% | – |
| Built 1939 or earlier | 31.1%±7.8 pts | 21.7% | – |
| Households with no vehicle | 7.6%±3.2 pts | 7.5% | – |
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 Marion Township, Allen County building?
Builders took permits for 19 new housing units in Marion Township, Allen County in 2025 (19 in single-family houses), 2.9 per 1,000 residents against 2.8 across Ohio.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Marion Township, Allen County work and get to work?
86.2% of Marion Township, Allen County's workers drive alone. The average trip to work takes 22.3 minutes. The unemployment rate in 2020-2024 averaged 3.9%.
| Measure | Marion Township, Allen County | Allen County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 61.5%±5.1 pts | 60.8% | – |
| Unemployment rate | 3.9%±2.3 pts | 5.7% | no clear change |
| Drove alone to work | 86.2%±4.6 pts | 82.8% | – |
| Carpooled | 7.2%±3.2 pts | 8.9% | – |
| Public transportation | 0.0%±1.2 pts | 0.4% | – |
| Walked | 0.5%±0.7 pts | 1.2% | – |
| Worked from home | 4.9%±3.4 pts | 4.8% | – |
| Mean travel time to work | 22.3 min±3.7 | 18.7 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 Marion Township, Allen County?
2 census tracts lie mostly in Marion Township, Allen County (2020 census blocks). Their median household incomes run from $55,908 (Tract 139) to $82,481 (Tract 140).
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 Marion Township, Allen County) · Census block assignment files
How does Marion Township, Allen County compare with other places in Ohio?
By the Census Bureau's July 2025 estimates, Marion Township, Allen County is the 1,809th-most populous of the 16,079 U.S. towns and townships that have one and the 194th-most populous of 1,311 in Ohio.
Marion Township, Allen County ranks 1,132nd 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 | 194th | 1,311 |
| Growth 2020-2025 (PEP) | 812th | 1,589 |
| Residents per square mile | 990th | 1,734 |
| Median household income | 1,132nd | 1,699 |
| Per capita income | 827th | 1,729 |
| Median home value | 1,221st | 1,707 |
| Median gross rent | 997th | 1,453 |
| Poverty rate | 603rd | 1,116 |
| Bachelor's degree or higher | 809th | 1,613 |
| Median age | 1,090th | 1,727 |
| Owner-occupied share | 1,005th | 1,732 |
| Travel time to work | 1,165th | 1,731 |
Marion Township, Allen County's figures with every place in Ohio (CSV)
Every place in Ohio, sortable · Compare Marion Township, Allen 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 Marion Township, Allen County?
15 of the 57 figures for Marion Township, Allen 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 Marion Township, 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.