• county
  • FIPS 39171
  • Largest town: Bryan

Williams County, Ohio

Williams County had 36,554 residents in the Census Vintage 2024 estimate, on 420.7 square miles of land. It ranks 67th of 88 in Ohio by population and 53rd by land area.

Population
36,554
#67 of 88 in Ohio · #1,282 in US
Area
420.7 sq mi
#53 of 88 in Ohio · #2,409 in US
Density
87 / sq mi
#65 of 88 in Ohio · #1,015 in US
Median household income
$61,183
#58 of 88 in Ohio · #1,720 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Williams County within Ohio. Pin: Columbus.

Measure from here

Tools and pages that start from Williams County

Williams County population, land area and income

Williams County had 36,554 residents in the Census Vintage 2024 estimate, on 420.7 square miles of land. It ranks 67th of 88 in Ohio by population and 53rd by land area. That works out to 86.9 people per square mile, near the US average of 96.3, and above the national county median.

The median county-equivalent in Ohio has 58,250 residents; Williams County is somewhat smaller.

Its SAIPE 2023 median household income of $61,183 is below the national county median among 3,143 counties with an estimate.

National rank among 3,144

Population

36,554

3144th1st

1282nd of 3,144 (US)

Land area

421 sq mi

3144th1st

2409th of 3,144 (US)

Density

86.9 / sq mi

3144th1st

1015th of 3,144 (US)

Median household income

$61,183

3143rd1st

1720th of 3,143 (US)

Rank within Ohio (88)

Population

36,554

88th1st

67th of 88 (OH)

Land area

421 sq mi

88th1st

53rd of 88 (OH)

Density

86.9 / sq mi

88th1st

65th of 88 (OH)

Median household income

$61,183

88th1st

58th of 88 (OH)

How Williams County's population changed since 2020

Williams County lost 530 residents between the July 2020 and July 2024 estimates, a drop of 1.4%. That ranks 71st of 88 in Ohio for growth. The median Ohio county changed by -0.2%, and the state as a whole by +0.7%.

Since the April 2020 estimates base, Williams County recorded 1,717 births and 1,999 deaths, a natural change of -282. Net international migration added +130 and net domestic migration, people moving to or from other US counties, came to -390. The largest single component was domestic migration, which removed 390 people.

37.1k202036.8k202136.6k202236.6k202336.6k2024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
1,717
Deaths
1,999
Net international migration
+130
Net domestic migration
-390
Change, July 2023 to July 2024
-12

Where Williams County is

The Census internal point of Williams County is at 41.565000, -84.584300. It sits in UTM zone 16N. The map shades Ohio's 88 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Williams County outlined. Dots are towns of 1,000+ people with residents in it.

Shelby County: -0.4%Defiance County: +1.0%Darke County: -0.8%Seneca County: -0.6%Wood County: +0.6%Fayette County: -0.7%Clark County: -0.7%Hocking County: -2.2%Jackson County: +0.2%Miami County: +2.7%Richland County: -0.1%Union County: +13.7%Auglaize County: -1.2%Hancock County: +0.1%Morgan County: -1.6%Van Wert County: -0.1%Hardin County: -1.0%Paulding County: -0.3%Portage County: +1.2%Delaware County: +10.6%Harrison County: -3.1%Ross County: -1.3%Crawford County: -0.9%Clinton County: -0.0%Henry County: -0.5%Pike County: -0.0%Cuyahoga County: -1.7%Highland County: +1.0%Knox County: +1.7%Ottawa County: -1.5%Huron County: -0.6%Erie County: -2.2%Holmes County: +1.0%Lawrence County: -4.0%Marion County: -0.6%Fairfield County: +5.2%Putnam County: -0.6%Guernsey County: -0.5%Vinton County: -2.1%Gallia County: -1.2%Trumbull County: -0.7%Wayne County: -0.2%Perry County: +0.6%Ashland County: -0.1%Fulton County: -1.4%Brown County: +1.4%Lucas County: -1.1%Stark County: -0.1%Medina County: +1.1%Belmont County: -2.4%Williams County: -1.4%Mahoning County: -1.0%Noble County: +1.1%Greene County: +2.5%Preble County: -0.5%Allen County: -1.2%Athens County: +1.3%Jefferson County: -2.0%Adams County: +0.8%Monroe County: -2.3%Washington County: -2.2%Logan County: -0.1%Franklin County: +2.4%Warren County: +5.3%Wyandot County: -2.1%Licking County: +3.4%Hamilton County: +0.8%Clermont County: +2.6%Butler County: +2.2%Coshocton County: +1.1%Geauga County: -0.0%Sandusky County: -0.0%Ashtabula County: -0.6%Carroll County: -0.9%Tuscarawas County: -1.2%Morrow County: +2.7%Montgomery County: +0.1%Mercer County: +0.3%Lake County: -0.1%Pickaway County: +6.0%Madison County: +3.8%Muskingum County: +0.1%Meigs County: -3.0%Columbiana County: -1.8%Lorain County: +2.7%Scioto County: -2.8%Champaign County: +0.4%Summit County: -0.3%
Change 2020 to 2024
  1. < -1.4%
  2. < -0.6%
  3. < -0.0%
  4. < +1.1%
  5. ≥ +1.1%
no data

Orange pin: Williams County internal point. Dark pin: Columbus.

Internal point

Decimal
41.565000, -84.584300
DMS
41°33'54.00"N 84°35'3.48"W
UTM
16N 701426.5E 4604298.7N
Geohash
dp7u7nxtd
Plus code
86HQHC88+27

Towns in Williams County

6 incorporated places of 1,000+ people have residents in Williams County, 18,735 people together, or 51% of the county. Each figure counts only the part of the town inside Williams County; towns marked "part" extend into another county. The largest is Bryan with 8,601.

  1. 01Bryan8,601
  2. 02Montpelier3,884
  3. 03Edgerton1,874
  4. 04West Unity1,731
  5. 05Pioneer1,407
  6. 06Stryker1,238
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Williams County

The Census 2024 county adjacency file lists 6 neighbors for Williams County, including 3 across a state line. The most populous is Hillsdale County, MI, with 45,590 residents. Distances run between Census internal points in a straight line.

Distance to Columbus and the nearest big city

Columbus is 138.3 miles SE of Williams County's internal point in a straight line. The nearest place of 100,000 or more is Fort Wayne, IN (population 273,203), 43.9 miles away. The nearest place of 10,000 or more is Defiance, OH (population 17,180), 22.7 miles away.

Williams County FIPS code

The FIPS code of Williams County is 39171: state code 39 for Ohio plus county code 171. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $61,183.

Questions people ask

What is the population of Williams County, Ohio?

The Census Vintage 2024 estimate for July 1, 2024 is 36,554. That is down 530 people (1.4%) from the July 2020 estimate of 37,084.

What is the FIPS code of Williams County?

39171. The first two digits (39) are Ohio; the last three (171) identify the county.

What is the largest town in Williams County?

Bryan, with 8,601 residents inside Williams County in 2024.

Which counties border Williams County?

6 county-equivalents border it in the Census 2024 adjacency file: Hillsdale County, MI; DeKalb County, IN; Fulton County, OH; Defiance County, OH; Steuben County, IN; Henry County, OH.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.