Alton city, Illinois demographics and economy

Census American Community Survey 2023 5-Year Estimates for Alton city, Illinois.

Population
25,430
Median HH Income
$53,005
Median Home Value
$99,500
Median Age
38.4

Workforce

Unemployment rate
5.1%
620 unemployed of 12,232 in labor force
Bachelor's degree or higher
13.6%
of population age 25+ (17,596 total)
Below poverty line
24.5%
6,091 of 24,890 surveyed

Housing & cost of living

Median home value
$99,500
owner-occupied housing units
Median gross rent
$948/mo
renter-occupied units, all bedrooms

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Similar-sized Illinois places

Data source: U.S. Census Bureau American Community Survey 2023 5-Year Estimates (Table B). Geography: place (incorporated city/town/CDP). Public domain (USA.gov).

Indicators: B01003 (population), B19013 (median household income), B25077 (median home value), B01002 (median age), B25064 (median gross rent), B23025 (labor force/unemployment), B15003 (educational attainment), B17001 (poverty).

Generated 2026-05-27. Census applies suppression rules to small populations; some values may be unavailable.