Illinois · Census place 1700646

Aledo, Illinois

Aledo is a city in Mercer County, Illinois with an estimated 3,522 residents on July 1, 2024. It is the 395th largest of 651 incorporated places of 1,000+ people in the state.

Population 2024
3,522
#395 of 651 in Illinois
Change since 2020
-2.7%
-97 people
Land area
2.3 sq mi
Density
1,505 / sq mi
State median 2,177
Orange pin: Aledo. Shaded: its county. Dark pin: Springfield.

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Tools and pages that start from Aledo

Aledo population, 2020 to 2024

Aledo lost 97 residents from July 2020 to July 2024, a change of -2.7%. In the latest year it moved by -40.

3,61920203,60120213,58020223,56220233,5222024
July 1 estimates. The April 2020 estimates base was 3,634. The axis starts above zero so yearly changes are visible.

Aledo covers 2.34 square miles of land, for 1,505 people per square mile of land. The median Illinois place of 5,000+ has 2,177, so Aledo is less dense than the typical town.

What county Aledo is in

All of Aledo's residents live in Mercer County, which had 15,292 residents in 2024. Aledo holds 23.0% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Aledo

1 ZIP Code Tabulation Area (ZCTA) overlaps Aledo by at least 10% of the ZCTA's or the city's land: 61231. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a city that annexed land after 2020 may reach into ZIP codes not listed here.

Where Aledo is

The Census internal point of Aledo is at 41.198600, -90.746400. Springfield, the capital, is 113.6 miles SSE in a straight line. The nearest larger place is Milan, IL (5,033 people), 19.0 miles away. The nearest city of 100,000 or more is Davenport, IA, 25.8 miles away.

Internal point

Decimal
41.198600, -90.746400
DMS
41°11'54.96"N 90°44'47.04"W
UTM
15N 688967.7E 4563252.4N
Geohash
9zr6r5brp
Plus code
86HF57X3+CC

Daylight in Aledo

At 41.20° N, Aledo gets about 15 h 09 min of daylight around the June solstice and 9 h 12 min around the December solstice, a swing of 5 h 57 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Aledo

The eight nearest incorporated places of 1,000+ in Illinois, measured between internal points. The closest is Andalusia, 16.5 miles away, with 1,167 people.

Questions people ask

What is the population of Aledo, IL?

3,522 on July 1, 2024, in the Census Vintage 2024 estimates. That is down 97 (2.7%) from 3,619 in July 2020.

What county is Aledo in?

Mercer County. All of its residents live in that county.

What ZIP codes cover Aledo?

1 ZIP Code Tabulation Area overlaps it by at least 10% of either area: 61231.

How far is Aledo from Springfield?

113.6 miles (182.9 km) in a straight line, heading SSE from Aledo.

What is the nearest larger city to Aledo?

Milan, IL, with 5,033 residents, 19.0 miles away between internal points.

Sources and data as of

Data as of: Census Vintage 2024 subcounty estimates (July 1, 2024), 2024 Gazetteer places, 2020 ZCTA to place relationship file.

  1. 01Census Vintage 2024 subcounty population estimates
  2. 02Census 2024 Gazetteer, places
  3. 03Census 2020 ZCTA to place relationship file
  4. 04Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.