US Census Data
Population
25,430
-4.5%’19–’23
Median household income
$53,005
+31.8%’19–’23
Median home value
$99,500
+24.5%’19–’23

Alton is a community in Madison County, Illinois, home to 25,430 residents. The median household income of $53,005 is below the Madison County median ($74,800).

From 2019 to 2023, Alton's population declined 4.5% from 26,640 to 25,430, while its median home value rose 24.5% from $79,900 to $99,500.

The median resident is 38.4 years old. The largest age group is 5 to 17, 17.3% of residents.

Demographics

ACS 2019–2023
Population
25,430
Median age
38.4 yrs
Median household income
$53,005
Median home value
$99,500
Median gross rent
$948
Housing units
12,513
Homeownership rate
57.1%
Bachelor's degree or higher
21.2%
Unemployment rate
5.1%

Trends

ACS 5-year · 2019–2023
Population
26,64025,430
Median household income
$40,211$53,005
Median home value
$79,900$99,500
Median gross rent
$773$948
YearPopulationMedian household incomeMedian home valueMedian gross rent
201926,640$40,211$79,900$773
202026,490$43,291$80,400$796
202125,902$45,225$82,000$824
202225,642$49,439$93,500$908
202325,430$53,005$99,500$948

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

CountShare
Under 51,5055.9%
5 to 174,39217.3%
18 to 241,9377.6%
25 to 343,67714.5%
35 to 443,37713.3%
45 to 543,21912.7%
55 to 642,92611.5%
65 to 742,78010.9%
75 and over1,6176.4%

Race & ethnicity

CountShare
White (non-Hispanic)16,70065.7%
Black or African American6,10124.0%
American Indian & Alaska Native300.1%
Asian2891.1%
Native Hawaiian & Pacific Islander00.0%
Some other race1290.5%
Two or more races1,5055.9%
Hispanic or Latino (any race)6762.7%

Educational attainment (age 25+)

CountShare
No high school diploma1,6149.2%
High school graduate5,47131.1%
Some college or associate's6,78638.6%
Bachelor's degree2,38813.6%
Graduate or professional degree1,3377.6%

Commute to work

Mean travel time to work
24 min

How workers get to work

CountShare
Drove alone8,63676.1%
Carpooled1,1209.9%
Public transit1771.6%
Walked2512.2%
Bicycle00.0%
Worked from home9518.4%
Other means2061.8%

Travel time

CountShare
Under 15 min4,01138.6%
15 to 29 min2,92328.1%
30 to 44 min1,95618.8%
45 to 59 min9879.5%
60+ min5134.9%

Households

Average household size
2.30
Poverty rate
24.5% (6,091 of 24,890)
CountShare
Family households5,69652.7%
Nonfamily households5,11547.3%

Housing

Median year structure built
1953

Occupancy

CountShare
Occupied10,81186.4%
Vacant1,70213.6%

Tenure (of occupied units)

CountShare
Owner-occupied6,17857.1%
Renter-occupied4,63342.9%

Units in structure

CountShare
1-unit, detached9,39875.1%
1-unit, attached1571.3%
2 to 4 units1,37111.0%
5 to 19 units5484.4%
20 or more units7806.2%
Mobile home & other2592.1%

Geography

Place GEOID
1701114
Type (LSAD)
25
Land area
16 sq mi
Water area
1.28 sq mi
Center point
38.9039, -90.1512

Compare with nearby cities

5

Illinois rankings

21

Other places in Madison County

31