Lacon, Illinois

Lacon, Illinois
5th Street, Lacon, view towards the Illinois River
Location in Marshall County, Illinois
Lacon
Location in the United States
Coordinates: 41°1′26″N 89°24′28″W / 41.02389°N 89.40778°W / 41.02389; -89.40778
CountryUnited States
StateIllinois
CountyMarshall
TownshipLacon
Area
  Total
1.64 sq mi (4.25 km2)
  Land1.60 sq mi (4.14 km2)
  Water0.04 sq mi (0.11 km2)
Elevation
484 ft (148 m)
Population
 (2020)
  Total
1,878
  Density1,173.75/sq mi (453.14/km2)
Time zoneUTC-6 (CST)
  Summer (DST)UTC-5 (CDT)
ZIP code
61540
Area code309
FIPS code17-40559
Wikimedia CommonsLacon, Illinois
Websitelaconcity.com

Lacon is a city in, and the county seat of, Marshall County, Illinois, United States. It is part of the Peoria Metropolitan Statistical Area. The population was 1,878 at the 2020 census, down from 1,937 in 2010.