Village · Ohio
Ada, Ohio
Ada, village, in Hardin County, Ohio. Ada had 4,985 residents on July 1, 2025 by the Census Bureau's estimate, down 6.4% since 2020; the 2020 Census counted 5,334 and the ACS 2020-2024 5-year estimates put it at 4,797 (±448). GEOID 3900198.
Residents, July 2025 estimate
4,985
Census Bureau estimate (no margin published)
2020 Census count: 5,334 · ACS 2020-2024: 4,797 ±448
Median household income
$61,649
±$3,380 (90% margin)
Ohio: $71,389
Median home value
$160,500
±$18,497 (90% margin)
Ohio: $214,800
Median gross rent
$884
±$76 (90% margin)
Ohio: $1,034
Where is Ada and what county is it in?
Ada is a village in Hardin County, Ohio. It covers 2.1 square miles of land, 2,503 residents per square mile in 2020.
Ada lies entirely within Liberty Township (Hardin County), a township with its own local government (2020 census blocks).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Ada, and is it growing?
The Census Bureau estimates that 4,985 people lived in Ada on July 1, 2025, down 6.4% since 2020, while Ohio grew 0.9%. The 2020 Census counted 5,334 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 4,797 (±448).
| Measure | Ada | Hardin County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 4,797 ±448 | 30,475 | −1,144 |
| Households | 1,523 ±245 | 11,724 | no clear change |
| Average household size | 2.07 ±0.22 | 2.44 | no clear change |
| Housing units | 1,776 ±253 | 12,917 | no clear change |
Ada's population since 2000
From 5,582 in 2000 to 4,985 in 2025: down 10.7%. The 2000, 2010 and 2020 figures are census counts, each for Ada 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 Ada?
The median resident of Ada is 22.2 years old; 10.6% are under 18 and 8.1% are 65 or older. The largest group is non-Hispanic white residents at 83.3%, then Hispanic or Latino residents (of any race) at 4.9%. 3.3% of residents were born outside the United States.
| Measure | Ada | Hardin County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 22.2 ±0.7 | 35.2 | no clear change |
| Under 18 years | 10.6% ±3.3 pts | 22.9% | – |
| 65 years and over | 8.1% ±2.2 pts | 16.1% | – |
| Male | 42.8% ±4.9 pts | 50.0% | – |
| Hispanic or Latino (any race) | 4.9% ±2.0 pts | 2.4% | no clear change |
| White alone, not Hispanic | 83.3% ±3.0 pts | 92.7% | no clear change |
| Black or African American alone, not Hispanic | 3.8% ±1.9 pts | 1.3% | no clear change |
| Asian alone, not Hispanic | 3.0% ±1.2 pts | 0.7% | no clear change |
| American Indian and Alaska Native alone, not Hispanic | 0.4% ±0.5 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.8 pts | 0.1% | – |
| Two or more races, not Hispanic | 3.7% ±1.9 pts | 2.5% | – |
| Some other race alone, not Hispanic | 1.0% ±1.0 pts | 0.2% | – |
| Born outside the United States | 3.3% ±1.6 pts | 1.0% | −3.7 pts |
| Speak a language other than English at home (age 5+) | 5.9% ±2.0 pts | 5.2% | – |
| Civilian veterans (age 18+) | 3.1% ±1.9 pts | 6.6% | – |
| With a disability | 8.8% ±2.9 pts | 12.4% | – |
| No health insurance coverage | 3.7% ±1.9 pts | 11.1% | no clear change |
| High school graduate or higher (age 25+) | 99.0% ±1.3 pts | 92.6% | – |
| Bachelor's degree or higher (age 25+) | 36.5% ±9.5 pts | 19.5% | no clear change |
| Graduate or professional degree (age 25+) | 15.4% ±6.4 pts | 6.9% | – |
| Lived in the same house a year earlier | 62.2% ±6.8 pts | 86.5% | – |
| Moved from another state in the past year | 8.0% ±3.6 pts | 2.3% | – |
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 Ada earn?
Half of Ada's 1,523 households earn less than $61,649 a year (±$3,380), against $62,484 in Hardin County and $71,389 in Ohio. In 2015-2019 it was $59,996 in 2024 dollars; the margins of error cannot tell the two periods apart. 31.5% of residents live below the poverty line.
| Measure | Ada | Hardin County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $61,649 ±$3,380 | $62,484 | no clear change |
| Mean household income | $70,794 ±$12,795 | $82,547 | – |
| Per capita income | $25,112 ±$4,924 | $32,470 | no clear change |
| People below the poverty line | 31.5% ±9.7 pts | 17.3% | +13.1 pts |
| Children under 18 below the poverty line | 33.1% ±23.6 pts | 27.9% | – |
| Households receiving SNAP | 9.2% ±7.4 pts | 12.4% | – |
| Households with a computer | 99.9% ±0.2 pts | 93.1% | – |
| Households with a broadband subscription | 91.1% ±7.3 pts | 85.7% | – |
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 Ada?
Owners occupy 44.3% of Ada's occupied homes and renters 55.7%. The median owner-occupied home is valued at $160,500 by its owner (±$18,497). The median renter pays $884 a month including utilities, and 40.3% of renters pay 35% or more of their income on rent.
| Measure | Ada | Hardin County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $160,500 ±$18,497 | $151,200 | no clear change |
| Median gross rent | $884 ±$76 | $793 | no clear change |
| Renters paying 35% or more of income on rent | 40.3% ±15.4 pts | 27.0% | no clear change |
| Median monthly owner costs, with a mortgage | $1,005 ±$452 | $1,254 | – |
| Owner-occupied homes | 44.3% ±8.7 pts | 74.7% | no clear change |
| Renter-occupied homes | 55.7% ±8.7 pts | 25.3% | – |
| Housing units | 1,776 ±253 | 12,917 | no clear change |
| Homeowner vacancy rate | 6.9% ±9.6 pts | 1.1% | – |
| Rental vacancy rate | 2.0% ±3.2 pts | 1.5% | – |
| Single-family detached homes | 55.2% ±9.2 pts | 76.4% | – |
| Mobile homes | 6.8% ±4.5 pts | 11.0% | – |
| Built 2020 or later | 0.5% ±0.8 pts | 1.2% | – |
| Built 2010 to 2019 | 9.8% ±7.4 pts | 5.3% | – |
| Built 1939 or earlier | 22.7% ±7.2 pts | 29.2% | – |
| Households with no vehicle | 1.8% ±2.6 pts | 6.6% | – |
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 many new homes is Ada building?
Builders took permits for 2 new housing units in Ada in 2025 (0 in single-family houses), 0.4 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 Ada work and get to work?
69.1% of Ada's workers drive alone and 8.5% work from home. The average trip to work takes 20.6 minutes. The unemployment rate in 2020-2024 averaged 8.9%.
| Measure | Ada | Hardin County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 60.5% ±4.8 pts | 61.6% | – |
| Unemployment rate | 8.9% ±4.9 pts | 4.6% | no clear change |
| Drove alone to work | 69.1% ±7.0 pts | 81.4% | – |
| Carpooled | 5.4% ±3.5 pts | 7.5% | – |
| Public transportation | 0.0% ±1.6 pts | 0.0% | – |
| Walked | 15.3% ±4.8 pts | 4.8% | – |
| Worked from home | 8.5% ±3.9 pts | 4.8% | no clear change |
| Mean travel time to work | 20.6 min ±3.0 | 23.6 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 Ada?
2 census tracts lie mostly in Ada (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 4.02Hardin County | 4,369 | $62,056 |
| Tract 4.01Hardin County | 1,726 | $42,067 |
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 Ada) · Census block assignment files
How does Ada compare with other places in Ohio?
By the Census Bureau's July 2025 estimates, Ada is the 4,903rd-most populous of the 19,476 U.S. incorporated places that have one and the 255th-most populous of 923 in Ohio.
Ada ranks 1,226th 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 | 255th | 923 |
| Growth 2020-2025 (PEP) | 1,588th | 1,589 |
| Residents per square mile | 132nd | 1,734 |
| Median household income | 1,226th | 1,699 |
| Per capita income | 1,620th | 1,729 |
| Median home value | 1,228th | 1,707 |
| Median gross rent | 817th | 1,453 |
| Poverty rate | 41st | 1,116 |
| Bachelor's degree or higher | 283rd | 1,613 |
| Median age | 1,711th | 1,727 |
| Owner-occupied share | 1,704th | 1,732 |
| Work from home | 672nd | 990 |
| Travel time to work | 1,403rd | 1,731 |
Ada's figures with every place in Ohio (CSV)
Every place in Ohio, sortable · Compare Ada 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 Ada?
12 of the 57 figures for Ada 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 Ada 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' public schools in Ada.