Townapedia
Mercer County Courthouse Image
Mercer County Courthouse Image · Boscophotos, CC BY-SA 3.0
CB&Q RR Depot Aledo, IL
CB&Q RR Depot Aledo, IL · Turner, C. G.; Times Record Pub.; Benedict, Public domain
Aledo, Illinois (9179322603)
Aledo, Illinois (9179322603) · Ken Lund from Reno, Nevada, USA, CC BY-SA 2.0
Aledo, Illinois (7981538822)
Aledo, Illinois (7981538822) · Ken Lund from Reno, Nevada, USA, CC BY-SA 2.0
Aledo Opera House evaporative cooling fan
Aledo Opera House evaporative cooling fan · Dentree2, CC BY-SA 4.0
Aledo Opera House hardwood flooring
Aledo Opera House hardwood flooring · Dentree2, CC BY-SA 4.0

Aledo, Illinois

Aledo is a city of 3,668 people in Mercer County, Illinois, founded in 1855.

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Population3,668 +5.0% since 2019
Elevation653 ft 199 m
Founded1855
Land area2.3 sq mi
ZIP code61231
Nearest airportQuad Cities International Airport (MLI) 21 mi

Why visit Aledo

Townapedia lists 6 museums and landmarks, 9 parks and trails, 7 places to eat, 2 places to stay and 1 attraction in and around town.

Highlights include William & Vashti College, Downtown Aledo Historic District, Mercer County Courthouse and Jaycee Park.

July is the warmest month, with average highs of 85°F; January lows average 13°F, and about 22 inches of snow fall in a normal year.

About Aledo

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

From the Wikipedia article Aledo, Illinois (this version), under CC BY-SA 4.0.

Things to do1

William & Vashti College

School · 0.7 mi

College in Aledo, Illinois from 1908 to 1918

Open in Google Maps · Wikipedia

Museums and landmarks6

Downtown Aledo Historic District

Monument and historic site · National Register of Historic Places

Historic district in Aledo, Illinois

Open in Google Maps · Wikipedia

Mercer County Courthouse

Monument and historic site · National Register of Historic Places

Local government building in the United States

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Mercer County Jail

Monument and historic site · National Register of Historic Places

Prison in Aledo, United States of America

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Mercer County Fairgrounds

Monument and historic site · National Register of Historic Places · 1.1 mi

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Aledo Opera House

Monument and historic site

108 Southeast 2nd Avenue, Aledo

Open in Google Maps · Wikipedia · +1-309-628-0156

Carlson Apartments

Monument and historic site

301 South College Avenue, Aledo

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Parks, trails and playgrounds9

Jaycee Park

Park · 0.4 mi

sunrise-sunset

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Central Park

Park

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Berglund Park

Park

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Fenton Park

Park · 0.7 mi

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Market Plaza

Park

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Monument Park

Park

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Monument Park

Park · 0.5 mi

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Northside Park

Park · 0.9 mi

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Roosevelt Military Academy Park

Park · 0.7 mi

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Restaurants and cafes7

Hong Kong Restaurant

Restaurant · Chinese

107 South College Avenue, Aledo

Tu-Su 11:00-20:30

Open in Google Maps · +1 309-582-3390

Happy Joe's

Restaurant · Pizza

314 Southeast 3rd Street, Aledo

Open in Google Maps · +1-309-582-5636

Tobalá Mexican Bar & Grill

Restaurant · Mexican

117 South College Avenue, Aledo

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Ariana's Cafe

Restaurant

213 South College Avenue, Aledo

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Ferg's Public House

Bar and pub

205 South College Avenue, Aledo

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McDonald's

Fast food · Burger · 0.7 mi

1402 Southeast 3rd Street, Aledo

Open in Google Maps · +1 309 582 2359

Subway

Fast food · Sandwich

Southeast 3rd Street, Aledo

Open in Google Maps

History

Aledo was established in the 1850s when the Great Western Railroad was extended to that point. It was briefly named "DeSoto", after Hernando de Soto, until the discovery of an identically named village in Jackson County. "Aledo" likely derives from John S. Thompson who, reportedly, saw the name Aledo (a municipality in Spain) in Webster's Dictionary. Development began in the 1850s, and the oldest surviving buildings date from the following decade. A post office has been in operation at Aledo since September 24, 1856. In 1857, the county seat was moved to Aledo from Millersburg after a countywide referendum. Aledo was incorporated on August 15, 1863. In the 1950s, the first Tastee-Freez in the United States was built in the downtown. The Downtown Aledo Historic District was established in 2016, with 75 contributing historic buildings in the downtown area.

From the History section of Aledo, Illinois on Wikipedia, under CC BY-SA 4.0.

Where to stay2

Churches and places of worship10

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Shopping3

Gas and EV charging2

Schools, colleges and libraries5

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Healthcare4

Map of Aledo

49 places. The map loads OpenStreetMap tiles when you open it.

Climate by month

20°40°60°80°January: 1.7 in of rainFebruary: 1.9 in of rainMarch: 2.5 in of rainApril: 4.0 in of rainMay: 5.1 in of rainJune: 5.4 in of rainJuly: 3.9 in of rainAugust: 3.9 in of rainSeptember: 3.7 in of rainOctober: 2.8 in of rainNovember: 2.3 in of rainDecember: 2.0 in of rainJanuary: 31°FFebruary: 36°FMarch: 49°FApril: 62°FMay: 73°FJune: 82°FJuly: 85°FAugust: 83°FSeptember: 77°FOctober: 64°FNovember: 49°FDecember: 36°FJanuary: 13°FFebruary: 17°FMarch: 27°FApril: 38°FMay: 50°FJune: 60°FJuly: 63°FAugust: 62°FSeptember: 53°FOctober: 41°FNovember: 30°FDecember: 20°FJFMAMJJASOND
Average high Average low Rain
Monthly table
MonthHighLowRainSnow
Jan31°F13°F1.7 in6.2 in
Feb36°F17°F1.9 in6.2 in
Mar49°F27°F2.5 in3.0 in
Apr62°F38°F4.0 in0.6 in
May73°F50°F5.1 in0.0 in
Jun82°F60°F5.4 in0.0 in
Jul85°F63°F3.9 in0.0 in
Aug83°F62°F3.9 in0.0 in
Sep77°F53°F3.7 in0.0 in
Oct64°F41°F2.8 in0.3 in
Nov49°F30°F2.3 in1.4 in
Dec36°F20°F2.0 in4.1 in

U.S. Climate Normals 1991-2020 for Aledo Hcn (0 mi away), NOAA NCEI.

People and cost of living

$72,292median household income
$147,600median home value
$806median monthly rent
38.4median age
25.7%of adults have a bachelor's degree or higher
69.7%of homes are owner-occupied
19.3 minaverage commute
Age of residents
Under 1821%18 to 3423%35 to 6435%65 and over21%

American Community Survey 5-year estimates, 2020-2024, U.S. Census Bureau. Estimates have margins of error, larger for small towns.

Disaster history

Mercer County has had 8 federal disaster declarations since 2000, most often for floods.

  • 2020-03-26: Covid-19 Pandemic (Biological)
  • 2020-03-13: Covid-19 (Biological)
  • 2019-09-19: Severe Storms And Flooding (Flood)
  • 2013-05-10: Severe Storms, Straight-Line Winds, And Flooding (Flood)
  • 2011-03-17: Severe Winter Storm And Snowstorm (Snowstorm)
  • 2008-06-24: Severe Storms And Flooding (Severe Storm)

OpenFEMA disaster declarations summaries.

Getting there and nearby towns

Quad Cities International Airport (MLI) is the nearest airport with scheduled flights listed in OpenStreetMap, 21 miles away.

  • Rock Island 20 mi northeast, about 33 min by car
  • Muscatine 23 mi northwest, about 36 min by car
  • Moline 24 mi northeast, about 38 min by car
  • Davenport 26 mi north, about 42 min by car
  • Galesburg 26 mi southeast, about 42 min by car
  • Bettendorf 29 mi northeast, about 47 min by car
  • East Moline 29 mi northeast, about 47 min by car
  • Burlington 33 mi southwest, about 54 min by car
  • Kewanee 43 mi east, about 1 h 15 min by car
  • Iowa City 51 mi northwest, about 1 h 30 min by car

Drive times are estimates from straight-line distance, not routes.

Reviews, tips and questions

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Sources and licences

Photo credits

Page built October 30, 2026. Spotted a mistake? Tell us or suggest a place.