Randolph County Map, Illinois

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

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

Randolph County Map, Illinois

Randolph County Map, Illinois

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

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Randolph County, Illinois

Randolph County is a county located in the U.S. state of Illinois. It's county seat is Chester. As per 2020 census, the population of Randolph County is 30142 people and population density is square miles. According to the United States Census Bureau, the county has a total area of 575 sq mi (1,489 km2). Randolph County was established on 1795.

Facts about Randolph County, Illinois

CountryUnited States
StateIllinois
RegionSouthwestern Illinois
County SeatChester
Named AfterEdmund Randolph
Established1795
Organized1795
Coordinates38.01° N, 89.82° W
Total Area~576 sq mi
Land Area~571 sq mi
Water Area~5 sq mi
Population (2020)~32,849
Population RankMid-sized county in Illinois
Largest CityChester
Main IndustriesAgriculture, Manufacturing, Energy, Corrections
Major HighwaysIllinois Route 3, Illinois Route 150
Time ZoneCentral Time (UTC−06:00)
Known ForMississippi River bluffs, Popeye creator hometown, historic river towns
Websitehttps://www.randolphcountyil.gov

Ctities in Randolph county

City NameTypePopulation (2020)Pop. DensityArea
BaldwinVillage314471.5/sq mi (182.0/km2)0.666 sq mi (1.72 km2)
ChesterCity6,8141,173.6/sq mi (453.1/km2)5.806 sq mi (15.04 km2)
CoultervilleVillage8341,465.7/sq mi (565.9/km2)0.569 sq mi (1.47 km2)
Ellis GroveVillage328668.0/sq mi (257.9/km2)0.491 sq mi (1.27 km2)
EvansvilleVillage547694.2/sq mi (268.0/km2)0.788 sq mi (2.04 km2)
KaskaskiaVillage21198.1/sq mi (76.5/km2)0.106 sq mi (0.27 km2)
PercyVillage906925.4/sq mi (357.3/km2)0.979 sq mi (2.54 km2)
Prairie du RocherVillage502879.2/sq mi (339.4/km2)0.571 sq mi (1.48 km2)
Red BudCity3,8041,450.2/sq mi (559.9/km2)2.623 sq mi (6.79 km2)
RockwoodVillage32150.9/sq mi (58.3/km2)0.212 sq mi (0.55 km2)
RumaVillage313421.8/sq mi (162.9/km2)0.742 sq mi (1.92 km2)
SpartaCity4,095366.6/sq mi (141.5/km2)11.17 sq mi (28.93 km2)
SteelevilleVillage1,9301,267.2/sq mi (489.3/km2)1.523 sq mi (3.94 km2)
TildenVillage750769.2/sq mi (297.0/km2)0.975 sq mi (2.53 km2)

Roads and Highways in Randolph County, Illinois

Randolph County is connected by several highways that provide access to southwestern Illinois and the Mississippi River region.

  • Illinois Route 3 – runs north-south along the Mississippi River, connecting Chester to Red Bud and Columbia
  • Illinois Route 4 – runs north-south, linking Sparta to Steeleville and central Illinois
  • Illinois Route 150 – runs east-west, connecting Chester to Sparta and Pinckneyville
  • Illinois Route 154 – runs east-west, linking Sparta to Pinckneyville and Sesser

Neighboring Counties of Randolph County

  • Monroe County (north)
  • Washington County (east)
  • Perry County (southeast)
  • Jackson County (south)
  • St. Genevieve County, Missouri (west)

Top Attractions in Randolph County, Illinois

Randolph County offers scenic river views, historic sites, and outdoor recreation along the Mississippi River.

  • Fort Kaskaskia State Historic Site – A historic location with views of the Mississippi River.
  • Pierre Menard Home State Historic Site – The preserved home of Illinois’ first lieutenant governor.
  • Chester Downtown Area – Features shops, dining, and is known as the hometown of Popeye creator Elzie Segar.
  • Randolph County Courthouse – A historic landmark located in Chester.
  • Mississippi River Access Areas – Provide boating, fishing, and scenic views.
  • Sparta World Shooting and Recreational Complex – A large facility for shooting sports and events.
  • Randolph County Fairgrounds – Hosts local fairs and community events.

Distance from Randolph County to Nearby Cities

  • Chester to St. Louis – 70 mi (113 km)
  • Sparta to Belleville – 45 mi (72 km)
  • Chester to Carbondale – 60 mi (97 km)
  • Sparta to Mount Vernon – 50 mi (80 km)
  • Chester to Cape Girardeau – 50 mi (80 km)

FAQs about Randolph County

Where is Randolph County located?

Randolph County is located in southwestern Illinois along the Mississippi River.

What is Randolph County known for?

The county is known for its historic sites, riverfront scenery, and connection to early Illinois history.

What is the county seat of Randolph County?

Chester is the county seat and a historic city in Randolph County.

Are there outdoor activities in Randolph County?

Yes, visitors can enjoy parks, river access, trails, and outdoor recreation throughout the county.

How can I reach Randolph County?

Randolph County is accessible via Illinois Routes 3, 4, 150, and 154.