Macon County Map, Illinois

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

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Macon County Map, Illinois

Macon County Map, Illinois

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

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Macon County, Illinois

Macon County is a county located in the U.S. state of Illinois. It's county seat is Decatur. As per 2020 census, the population of Macon County is 102432 people and population density is square miles. According to the United States Census Bureau, the county has a total area of 580 sq mi (1,502 km2). Macon County was established on 1829.

Facts about Macon County, Illinois

CountryUnited States
StateIllinois
RegionCentral Illinois
County SeatDecatur
Named AfterNathaniel Macon
Established1829
Organized1829
Coordinates39.86° N, 88.96° W
Total Area~581 sq mi
Land Area~581 sq mi
Water Area~1 sq mi
Population (2020)~103,998
Population RankOne of the more populous counties in Illinois
Largest CityDecatur
Main IndustriesManufacturing, Agriculture, Healthcare, Energy
Major HighwaysInterstate 72, U.S. Route 51
Time ZoneCentral Time (UTC−06:00)
Known ForAgribusiness hub, manufacturing base, Lake Decatur
Websitehttps://www.macoupincountyil.gov

Ctities in Macon county

City NameTypePopulation (2020)Pop. DensityArea
ArgentaVillage9131,398.2/sq mi (539.8/km2)0.653 sq mi (1.69 km2)
Blue MoundVillage1,1331,936.8/sq mi (747.8/km2)0.585 sq mi (1.52 km2)
DecaturCity70,5221,644.1/sq mi (634.8/km2)42.894 sq mi (111.09 km2)
ForsythVillage3,7341,193.0/sq mi (460.6/km2)3.13 sq mi (8.11 km2)
HarristownVillage1,310729.0/sq mi (281.5/km2)1.797 sq mi (4.65 km2)
Long CreekVillage1,261446.4/sq mi (172.3/km2)2.825 sq mi (7.32 km2)
MaconCity1,177811.2/sq mi (313.2/km2)1.451 sq mi (3.76 km2)
MaroaCity1,577894.5/sq mi (345.4/km2)1.763 sq mi (4.57 km2)
Mount ZionVillage6,0191,423.9/sq mi (549.8/km2)4.227 sq mi (10.95 km2)
NianticVillage612589.0/sq mi (227.4/km2)1.039 sq mi (2.69 km2)
OreanaVillage8911,903.8/sq mi (735.1/km2)0.468 sq mi (1.21 km2)
WarrensburgVillage1,1101,524.7/sq mi (588.7/km2)0.728 sq mi (1.89 km2)

Roads and Highways in Macon County, Illinois

Macon County is a major transportation hub in central Illinois with several highways connecting it to surrounding regions.

  • Interstate 72 – runs east-west through the county, connecting Decatur to Springfield and Champaign
  • U.S. Route 51 – runs north-south, linking Decatur to Bloomington and Pana
  • Illinois Route 48 – runs north-south, connecting Decatur to Taylorville and Clinton
  • Illinois Route 121 – runs north-south, linking Decatur to Lincoln and Mattoon
  • Illinois Route 105 – runs east-west, connecting Decatur to Bement and Cerro Gordo

Neighboring Counties of Macon County

  • DeWitt County (north)
  • Piatt County (northeast)
  • Moultrie County (east)
  • Shelby County (south)
  • Christian County (southwest)
  • Sangamon County (west)

Top Attractions in Macon County, Illinois

Macon County offers a mix of parks, cultural attractions, and historic sites centered around the city of Decatur.

  • Scovill Zoo – A family-friendly attraction with a variety of animals and exhibits.
  • Rock Springs Conservation Area – Offers trails, lakes, and nature education programs.
  • Children’s Museum of Illinois – Features interactive exhibits for kids and families.
  • Lake Decatur – A popular spot for boating, fishing, and outdoor recreation.
  • Millikin University – A historic campus with cultural and educational events.
  • Decatur Downtown District – Features shops, dining, and community events.
  • Macon County History Museum – Showcases local history and heritage.

Distance from Macon County to Nearby Cities

  • Decatur to Springfield – 40 mi (64 km)
  • Decatur to Champaign – 45 mi (72 km)
  • Decatur to Bloomington – 50 mi (80 km)
  • Decatur to Peoria – 80 mi (129 km)
  • Decatur to St. Louis – 110 mi (177 km)

FAQs about Macon County

Where is Macon County located?

Macon County is located in central Illinois, centered around the city of Decatur.

What is Macon County known for?

The county is known for Lake Decatur, parks, and cultural attractions in the Decatur area.

What is the county seat of Macon County?

Decatur is the county seat and the largest city in Macon County.

Are there outdoor activities in Macon County?

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

How can I reach Macon County?

Macon County is accessible via Interstate 72, U.S. Route 51, and several Illinois state highways.