City · Illinois
Aledo, Illinois
Aledo, city, in Mercer County, Illinois. Aledo had 3,506 residents on July 1, 2025 by the Census Bureau's estimate, down 3.5% since 2020; the 2020 Census counted 3,633 and the ACS 2020-2024 5-year estimates put it at 3,668 (±154). GEOID 1700646.
Residents, July 2025 estimate
3,506
Census Bureau estimate (no margin published)
2020 Census count: 3,633 · ACS 2020-2024: 3,668 ±154
Median household income
$72,292
±$20,707 (90% margin)
Illinois: $83,390
Median home value
$147,600
±$12,012 (90% margin)
Illinois: $263,300
Median gross rent
$806
±$49 (90% margin)
Illinois: $1,274
Where is Aledo and what county is it in?
Aledo is a city in Mercer County, Illinois. It covers 2.3 square miles of land, 1,550 residents per square mile in 2020.
Aledo is in the Davenport-Moline-Rock Island, IA-IL metropolitan statistical area, which takes in 4 counties (Census Bureau delineation, July 2023).
Aledo lies entirely within Mercer Township, a township with its own local government (2020 census blocks).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Aledo, and is it growing?
The Census Bureau estimates that 3,506 people lived in Aledo on July 1, 2025, down 3.5% since 2020, a steeper fall than Illinois's (−0.8%). The 2020 Census counted 3,633 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 3,668 (±154).
| Measure | Aledo | Mercer County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 3,668 ±154 | 15,495 | no clear change |
| Households | 1,545 ±118 | 6,565 | no clear change |
| Average household size | 2.27 ±0.16 | 2.33 | no clear change |
| Housing units | 1,663 ±126 | 7,285 | no clear change |
Aledo's population since 2000
From 3,613 in 2000 to 3,506 in 2025: down 3.0%. The 2000, 2010 and 2020 figures are census counts, each for Aledo as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Aledo?
The median resident of Aledo is 38.4 years old; 21.3% are under 18 and 21.4% are 65 or older. The largest group is non-Hispanic white residents at 93.5%, then Hispanic or Latino residents (of any race) at 3.7%.
| Measure | Aledo | Mercer County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 38.4 ±5.2 | 44.7 | −8.9 |
| Under 18 years | 21.3% ±3.1 pts | 20.8% | – |
| 65 years and over | 21.4% ±3.0 pts | 21.9% | – |
| Male | 49.1% ±3.3 pts | 50.5% | – |
| Hispanic or Latino (any race) | 3.7% ±1.8 pts | 3.4% | no clear change |
| White alone, not Hispanic | 93.5% ±2.3 pts | 93.1% | no clear change |
| Black or African American alone, not Hispanic | 2.0% ±1.3 pts | 0.6% | no clear change |
| Asian alone, not Hispanic | 0.0% ±1.0 pts | 0.4% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.1% ±0.1 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±1.0 pts | 0.0% | – |
| Two or more races, not Hispanic | 0.8% ±1.1 pts | 2.4% | – |
| Some other race alone, not Hispanic | 0.0% ±1.0 pts | 0.0% | – |
| Born outside the United States | 0.3% ±0.4 pts | 1.1% | – |
| Speak a language other than English at home (age 5+) | 3.3% ±2.0 pts | 2.8% | – |
| Civilian veterans (age 18+) | 6.6% ±2.4 pts | 8.4% | – |
| With a disability | 9.6% ±2.9 pts | 13.0% | – |
| No health insurance coverage | 4.6% ±2.7 pts | 4.6% | – |
| High school graduate or higher (age 25+) | 96.0% ±1.8 pts | 93.9% | – |
| Bachelor's degree or higher (age 25+) | 25.7% ±5.1 pts | 20.9% | no clear change |
| Graduate or professional degree (age 25+) | 8.1% ±3.1 pts | 7.1% | – |
| Lived in the same house a year earlier | 92.3% ±3.4 pts | 93.3% | – |
| Moved from another state in the past year | 1.7% ±1.1 pts | 1.5% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Aledo earn?
Half of Aledo's 1,545 households earn less than $72,292 a year (±$20,707), against $74,182 in Mercer County and $83,390 in Illinois. In 2015-2019 it was $62,128 in 2024 dollars; the margins of error cannot tell the two periods apart. 12.6% of residents live below the poverty line.
| Measure | Aledo | Mercer County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $72,292 ±$20,707 | $74,182 | no clear change |
| Mean household income | $86,063 ±$8,922 | $92,846 | – |
| Per capita income | $35,903 ±$3,842 | $39,391 | no clear change |
| People below the poverty line | 12.6% ±5.0 pts | 8.9% | no clear change |
| Children under 18 below the poverty line | 20.9% ±15.3 pts | 12.2% | – |
| Households receiving SNAP | 11.1% ±5.3 pts | 9.9% | – |
| Households with a computer | 92.9% ±4.0 pts | 92.9% | – |
| Households with a broadband subscription | 90.6% ±4.2 pts | 90.5% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Aledo?
Owners occupy 69.7% of Aledo's occupied homes and renters 30.3%. The median owner-occupied home is valued at $147,600 by its owner (±$12,012). The median renter pays $806 a month including utilities, and 26.9% of renters pay 35% or more of their income on rent.
| Measure | Aledo | Mercer County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $147,600 ±$12,012 | $146,700 | +$27,115 |
| Median gross rent | $806 ±$49 | $786 | no clear change |
| Renters paying 35% or more of income on rent | 26.9% ±11.4 pts | 26.0% | no clear change |
| Median monthly owner costs, with a mortgage | $1,314 ±$102 | $1,327 | – |
| Owner-occupied homes | 69.7% ±8.7 pts | 83.8% | no clear change |
| Renter-occupied homes | 30.3% ±8.7 pts | 16.2% | – |
| Housing units | 1,663 ±126 | 7,285 | no clear change |
| Homeowner vacancy rate | 0.0% ±3.4 pts | 0.2% | – |
| Rental vacancy rate | 14.8% ±12.9 pts | 10.4% | – |
| Single-family detached homes | 77.4% ±6.6 pts | 87.9% | – |
| Mobile homes | 0.0% ±2.2 pts | 2.9% | – |
| Built 2020 or later | 0.0% ±2.2 pts | 0.2% | – |
| Built 2010 to 2019 | 1.4% ±2.0 pts | 3.0% | – |
| Built 1939 or earlier | 30.9% ±6.6 pts | 30.6% | – |
| Households with no vehicle | 2.7% ±3.5 pts | 2.8% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Aledo building?
Builders took permits for 3 new housing units in Aledo in 2025 (3 in single-family houses), 0.9 per 1,000 residents against 1.5 across Illinois.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Aledo work and get to work?
81.3% of Aledo's workers drive alone and 9.7% work from home. The average trip to work takes 19.3 minutes. The unemployment rate in 2020-2024 averaged 3.8%.
| Measure | Aledo | Mercer County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 65.6% ±4.8 pts | 60.8% | – |
| Unemployment rate | 3.8% ±2.5 pts | 3.2% | – |
| Drove alone to work | 81.3% ±7.1 pts | 79.1% | – |
| Carpooled | 5.2% ±3.6 pts | 8.0% | – |
| Public transportation | 0.0% ±2.1 pts | 0.0% | – |
| Walked | 3.8% ±3.1 pts | 2.4% | – |
| Worked from home | 9.7% ±4.9 pts | 10.1% | no clear change |
| Mean travel time to work | 19.3 min ±3.4 | 28.1 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Aledo?
1 census tract lies mostly in Aledo (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 403Mercer County | 3,777 | $68,625 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Aledo) · Census block assignment files
How does Aledo compare with other places in Illinois?
By the Census Bureau's July 2025 estimates, Aledo is the 5,866th-most populous of the 19,476 U.S. incorporated places that have one and the 393rd-most populous of 1,294 in Illinois.
Aledo ranks 799th of 1,380 places in Illinois with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 393rd | 1,294 |
| Growth 2020-2025 (PEP) | 1,129th | 1,347 |
| Residents per square mile | 415th | 1,383 |
| Median household income | 799th | 1,380 |
| Per capita income | 842nd | 1,383 |
| Median home value | 838th | 1,379 |
| Median gross rent | 955th | 1,280 |
| Poverty rate | 394th | 1,119 |
| Bachelor's degree or higher | 612th | 1,369 |
| Median age | 999th | 1,383 |
| Owner-occupied share | 1,043rd | 1,382 |
| Work from home | 615th | 1,015 |
| Travel time to work | 1,186th | 1,382 |
Aledo's figures with every place in Illinois (CSV)
Every place in Illinois, sortable · Compare Aledo with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Aledo?
16 of the 57 figures for Aledo on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Aledo are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' public schools in Aledo.