Brown County Map, Illinois

Written and Fact-checked by | Updated On: April 26, 2026 | 14:30 ET

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

Brown County Map, Illinois

Brown County Map, Illinois

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

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Brown County, Illinois

Brown County is a county located in the U.S. state of Illinois. It's county seat is Mount Sterling. As per 2020 census, the population of Brown County is 6421 people and population density is square miles. According to the United States Census Bureau, the county has a total area of 305 sq mi (790 km2). Brown County was established on 1839.

Facts about Brown County, Illinois

CountryUnited States
StateIllinois
RegionWestern Illinois
County SeatMount Sterling
Named AfterJacob Brown
Established1839
Organized1839
Coordinates39.96° N, 90.75° W
Total Area~306 sq mi
Land Area~306 sq mi
Water Area~0.4 sq mi
Population (2020)~6,244
Population RankOne of the least populous counties in Illinois
Largest CityMount Sterling
Main IndustriesAgriculture, Government Services, Small Manufacturing
Major HighwayU.S. Route 24
Time ZoneCentral Time (UTC−06:00)
Known ForRural farmland, small-town communities, Illinois River proximity
Websitehttps://www.browncoil.org

Ctities in Brown county

City NameTypePopulation (2020)Pop. DensityArea
Mound StationVillage117225.4/sq mi (87.0/km2)0.519 sq mi (1.34 km2)
Mount SterlingCity2,0061,810.5/sq mi (699.0/km2)1.108 sq mi (2.87 km2)
RipleyVillage53139.8/sq mi (54.0/km2)0.379 sq mi (0.98 km2)
VersaillesVillage446478.0/sq mi (184.6/km2)0.933 sq mi (2.42 km2)

Roads and Highways in Brown County, Illinois

Brown County is connected by a few key highways that provide access to nearby towns and the Illinois River region, making travel simple across west-central Illinois.

  • U.S. Route 24 – runs east-west through the county, connecting Mount Sterling to Quincy and extending toward central Illinois
  • Illinois Route 99 – runs north-south, linking Mount Sterling to Beardstown and Rushville
  • Illinois Route 107 – connects Mount Sterling to Griggsville and Pike County
  • Illinois Route 125 – runs east-west across the northern part of the county, connecting Beardstown to Rushville

Neighboring Counties of Brown County

  • Schuyler County (north)
  • Cass County (east)
  • Morgan County (southeast)
  • Pike County (south)
  • Adams County (west)

Top Attractions in Brown County, Illinois

Brown County offers a quiet rural setting with scenic landscapes, local history, and outdoor spaces perfect for a relaxing visit.

  • Mount Sterling Historic Square – A charming downtown area with historic buildings and local shops.
  • Brown County Courthouse – A classic courthouse located in the heart of Mount Sterling.
  • Siloam Springs State Park – A nearby natural area with camping, fishing, and hiking opportunities.
  • Timewell Park – A small community park with open green space and recreational areas.
  • La Moine River Area – Offers scenic views and opportunities for fishing and nature walks.
  • Brown County Fairgrounds – Hosts local events and the annual county fair.
  • Historic Homes of Mount Sterling – Features several well-preserved historic residences.

Distance from Brown County to Nearby Cities

  • Mount Sterling to Quincy – 45 mi (72 km)
  • Mount Sterling to Jacksonville – 50 mi (80 km)
  • Mount Sterling to Springfield – 80 mi (129 km)
  • Mount Sterling to Peoria – 95 mi (153 km)
  • Mount Sterling to St. Louis – 150 mi (241 km)

FAQs about Brown County

Where is Brown County located?

Brown County is located in west-central Illinois, near the Illinois River and surrounded by rural farmland.

What is Brown County known for?

The county is known for its quiet countryside, historic town of Mount Sterling, and nearby outdoor recreation areas.

What is the county seat of Brown County?

Mount Sterling is the county seat and the largest city in Brown County.

Are there outdoor activities in Brown County?

Yes, visitors can enjoy parks, river areas, and nearby state parks for hiking, fishing, and camping.

How can I reach Brown County?

Brown County is accessible via U.S. Route 24 and several Illinois state highways connecting it to nearby regions.