Williams County, Ohio Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 66th-largest in Ohio
The population of Williams County, Ohio is 36,862 as of the 2023 American Community Survey, making it the 66th-largest county in Ohio. The median household income is $61,834, the median home value is $140,000, and the median age is 41.8.
The population of Williams County has declined 2.5% since 2010 (37,510 → 36,554), a -0.18% annualized rate.
36,862
Population
-0.18%
Annual growth
88
People / sq mi
$61,834
Median Income
$140,000
Median Home Value
Williams County covers 421 sq mi of land at 87.6 people per square mile.
About Williams County, OH
What sets Williams County apart is where people work — remote work is unusually rare here, at 2.6% versus 14.0% nationally. With 36,862 residents, Williams County is a county in Ohio.
The typical household here earns about $61,834, below the US median of $78,538. About 9.4% of residents live below the federal poverty level, below the national 12.4%. Homes carry a median value of $140,000, with typical rent around $805.
College attainment is 14.2%, below the national 35.0%. Remote work is rare here (2.6%, below the national 14.0%), and the average commute runs about 19 minutes each way.
Williams County Population History (2010-2024)
The county of Williams County had a population of 37,510 in 2010 and 36,554 in 2024, a -2.5% growth over 14 years. The peak was 37,587 in 2011. Average annual growth rate: -0.18%.
36,554
Population (2024)
37,510
Population (2010)
37,587
Peak (2011)
-0.18%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 37,510 |
| 2011 | 37,587 |
| 2012 | 37,531 |
| 2013 | 37,446 |
| 2014 | 37,222 |
| 2015 | 37,036 |
| 2016 | 36,964 |
| 2017 | 36,754 |
| 2018 | 36,753 |
| 2019 | 36,765 |
| 2020 | 37,084 |
| 2021 | 36,770 |
| 2022 | 36,621 |
| 2023 | 36,566 |
| 2024 | 36,554 |
Race & Ethnicity
| White | 92.4% |
| Black or African American | 1.1% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.9% |
| Two or More Races | 0.0% |
Age & Sex
41.8
Median Age
50.1%
Female
49.9%
Male
19.5%
Age 65+
Age Distribution
Children (under 15): 18.1% · Seniors (65+): 19.5%
Income & Poverty
| Median household income | $61,834$-7,846 vs state |
| Mean household income | $76,171 |
| Per-capita income | $32,421 |
| Poverty rate | 9.4%+0.2% vs state |
| Unemployment rate | 2.1% |
| Employment-to-population | 59.4% |
Top Industries by Employment
The largest employment sector in Williams County is manufacturing, accounting for 30.7% of workers.
How residents commute
0.6%
Drive alone
1.8%
Carpool
86.6%
Public transit
2.6%
Work from home
19.1 min
Avg commute
Housing
$140,000$-59,200 vs state
Median home value
$805
Median rent
75.6%
Homeownership rate
16,574
Total housing units
93.2%
Occupied
6.8%
Vacant
24.4%
Renter-occupied
Social & access
94.7%
With health insurance
90.9%
With broadband internet
26.7%
Foreign-born
6.5%
Veterans (18+)
17.2%
With a disability
96.3%
Speak language other than English at home
Education
91.4%
High School+
14.2%
Bachelor's+
Largest cities in Ohio
Other counties in Ohio
Part of Ohio
Metro areas in Ohio
County rankings
Frequently Asked Questions
Williams County, Ohio has a population of 36,862 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 66th-largest county in Ohio. Population density is 88 people per square mile.
The population of Williams County has declined 2.5% since 2010 (37,510 → 36,554), a -0.18% annualized rate.
The median household income in Williams County, Ohio is $61,834, with mean (average) household income of $76,171 and per-capita income of $32,421. 9.4% of residents live below the federal poverty level.
In Williams County, the largest racial and ethnic groups are White (92.4%), Black or African American (1.1%), Hispanic or Latino (0.9%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Williams County, Ohio is 41.8 years. Residents are 50.1% female and 49.9% male.
The median home value in Williams County is $140,000 and median monthly rent is $805. 75.6% of occupied housing units are owner-occupied. The county has 16,574 total housing units, 6.8% of which are vacant.
The largest employment sector in Williams County, Ohio is manufacturing, employing 30.7% of workers. The unemployment rate is 2.1%.
Columbus is among the largest cities associated with Williams County, Ohio, with a population of 906,480.
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Population, race, income, age, and trends across Ohio
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.