Aledo, Illinois

Aledo, Illinois
Motto: 
City of Pride and Progress
Interactive map of Aledo, Illinois
Aledo
Aledo
Coordinates: 41°11′55″N 90°45′02″W / 41.19861°N 90.75056°W / 41.19861; -90.75056
CountryUnited States
StateIllinois
CountyMercer
TownshipMercer
Established1855
Founded byJohn S. Thompson
Named afterAledo, Spain
Government
 • MayorChris Hagloch
Area
 • Total
2.38 sq mi (6.16 km2)
 • Land2.37 sq mi (6.13 km2)
 • Water0.012 sq mi (0.03 km2)
Elevation
732 ft (223 m)
Population
 (2020)
 • Total
3,633
 • Estimate 
(2024)
3,522
 • Density1,534/sq mi (592.3/km2)
Time zoneUTC-6 (CST)
 • Summer (DST)UTC-5 (CDT)
ZIP code
61231
Area code309 861
FIPS code17-00646
GNIS feature ID2393914
Websitewww.aledoil.gov

Aledo /əˈld/ is a city in and the county seat of Mercer County, Illinois, United States. The population was 3,633 at the 2020 census.