Williams County Map, Ohio

Written and Fact-checked by | Updated On: April 30, 2026 | 13:31 ET

Map of Williams County - Williams County is a county located in the U.S. state of Ohio. Williams County Map showing cities, highways, important places and water bodies. Get Where is Williams County located in the map, major cities in Williams county, population, areas, and places of interest.

Map of Williams County, Ohio

Map of Williams County, Ohio

About Williams County Map, Ohio: The map showing the county boundary, county seat, major cities, highways, water bodies and neighbouring counties.

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About Williams County, Ohio

Williams County is a county located in the U.S. state of Ohio. It's county seat is Bryan. As per 2020 census, the population of Williams County is 36716 people and population density is square miles. According to the United States Census Bureau, the county has a total area of 421.74 sq mi (1,092 km2). Williams County was established on -29127.

Williams County Facts

ContinentNorth America
CountryUnited States
StateOhio
County SeatBryan
Largest City/TownBryan
EstablishedApril 1, 1824
Total Area423 sq mi (1,096 sq km)
Land Area421 sq mi (1,091 sq km)
Water Area1.9 sq mi (4.9 sq km)
Population37,102 (Census 2020)
Population Density88 people per sq mi
Time ZoneEastern Time Zone (ET)
Major HighwaysUS-20A, US-6, State Route 15, State Route 49, State Route 576
Neighboring CountiesDefiance County, Henry County, Fulton County, Hillsdale County (MI), Lenawee County (MI), Steuben County (IN)
Famous ForRural farming communities, Indiana/Michigan border location, quiet countryside
Top AttractionsLake Seneca, Stoney Ridge Winery, Bryan Historic District, Harrison Lake State Park nearby
Official Websitehttps://www.williamscountyoh.gov/

Cities and Towns in Williams County, Ohio

  • Bryan (county seat) – 8,729 (Census 2020)
  • Montpelier – 4,072 (Census 2020)
  • Edgerton – 1,920 (Census 2020)
  • Stryker – 1,259 (Census 2020)

Roads and Highways in Williams County, Ohio

Williams County is located in far northwest Ohio and connects to Michigan and Indiana through key highways.

  • US-6 – east-west route connecting Bryan to Indiana and Toledo region
  • US-20A – alternate east-west highway through the county
  • State Route 15 – north-south route connecting Bryan to Defiance and Michigan
  • State Route 49 – links the county to Ohio’s western border and Indiana
  • State Route 576 – local connector route in rural areas

Neighboring Counties of Williams County

  • Fulton County (east)
  • Henry County (southeast)
  • Defiance County (south)
  • Hillsdale County, Michigan (north)
  • Lenawee County, Michigan (northeast)
  • Steuben County, Indiana (west)

Top Attractions in Williams County, Ohio

Williams County offers rural recreation, small-town history, and outdoor activities.

  • Lake Seneca – scenic lake for fishing and outdoor recreation
  • Stoney Ridge Winery – local winery with tastings and events
  • Bryan Historic District – downtown area with historic architecture and shops
  • Harrison Lake State Park nearby – camping, hiking, and boating
  • Fulton County Reservoir nearby – additional recreational opportunities
  • Montpelier parks – community parks and local recreation
  • Edgerton community area – small-town charm and events
  • Rural farmland scenery – expansive agricultural landscapes

Distance from Williams County to Nearby Cities

  • Williams County to Toledo – 60 mi (97 km)
  • Williams County to Fort Wayne – 65 mi (105 km)
  • Williams County to Detroit – 100 mi (161 km)
  • Williams County to Columbus – 150 mi (241 km)
  • Williams County to Indianapolis – 120 mi (193 km)

FAQs about Williams County

Where is Williams County located?

Williams County is located in far northwest Ohio along the Indiana and Michigan borders.

What is Williams County known for?

It is known for its rural farming communities and its location near Indiana and Michigan.

What is the population of Williams County?

The population was 37,102 according to the 2020 Census.

What is the county seat of Williams County?

The county seat is Bryan.

Are there attractions in Williams County?

Yes, Williams County offers lakes, parks, wineries, and historic downtown areas.