Eureka

Also known as Eureka, Illinois, Eureka, IL

city in Woodford County, Illinois, United States

Key facts

Country: United States
State: Illinois
County: Woodford
Mayor: Eric Lind
Total: 2.73 sq mi (7.08 km )
Land: 2.68 sq mi (6.95 km )
Water: 0.046 sq mi (0.12 km )
Elevation: 738 ft (225 m)
Estimate 2024: 5,189
Density: 1,947.3/sq mi (751.86/km )
Time zone: UTC-6 ( CST )
Summer dst: UTC-5 ( CDT )
Fips code: 17-24543

Article

Eureka is a city in and the county seat of Woodford County, Illinois, United States. As of the 2020 census, Eureka had a population of 5,227. Eureka is part of the Peoria metropolitan area.

Eureka is a small community centered on the intersection of what is now U.S. 24 and Illinois 117. It is also one of the towns along the Ronald Reagan Trail, a series of roads that connect towns in central Illinois that were of importance to Reagan's early life. President Reagan attended and graduated from Eureka College.