United States › Illinois › Alton CITY · 2000 CENSUS
Alton Illinois · 30,496 residents · 15.7 sq mi
Time machine
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The short version
Alton is home to 30,496 people in Illinois. Households here earn about 33% less than in Illinois as a whole. Median home value sits at $55,400. 16% of adults hold a bachelor's degree or higher. The poverty rate is 18.7%, above the 12.4% national rate. Median household income is $31,213, under the $42,589 national median.
At a glance
Lower income
below the US median
US median: $42,589
Mid-age
median age 35.4
US median: 35.2
Less educated
16% hold a bachelor's degree
US average: 24%
Stable housing
home values roughly flat, inflation adjusted
US median home: $120,530
Section 01
Population & growth from 33.6 in 1990
US average: 35.2
Population, 1990 – 2024
25K 27K 29K 31K 34K 1990 2000 2010 2020 2024 Alton Age distribution, 2000
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy $31,213
+3%inflation adjusted, since 1990
from $22,948 in 1990
US average: $42,589
from $10,904 in 1990
US average: $21,522
from 19.9% in 1990
US average: 12.4%
$55,400
+12%inflation adjusted, since 1990
from $37,500 in 1990
US average: $120,530
$430
−1%inflation adjusted, since 1990
from $330 in 1990
US average: $602
from 64.8% in 1990
34.6% rent
Section 04
Race & ethnicity 1990
White, non-Hispanic 75.7%(24,912)
Hispanic / Latino 1.1%(369)
2000
White, non-Hispanic 71.6%(21,825)
Hispanic / Latino 1.5%(454)
No data for the years selected.
Section 04 · Origins
Detailed origins & ancestry Detailed origin tables are available for 2024; showing 2024 data.
Ancestry
+ 28 more ancestry groups with data from 11.6% in 1990
US average: 24.4%
High school or higher
from 72.4% in 1990
US average: 80.3%
from 3.2% in 1990
US average: 8.8%
Section 06
Commute & transportation from 18.3 min in 1990
US average: 17.6
Section 07
Work & employment No data for the years selected.
Section 08
People & community No data for the years selected.
Marital status
Men 15+
Never married 31.8%(3,444)
Women 15+
Never married 26.6%(3,467)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2000
Section 09
Health coverage Showing 2024 (the nearest year with coverage data).
from 12.4% in 2013
US average: 8.4%
from 46.3% in 2020
US average: 54.8%
Direct-purchase
from 10.8% in 2020
US average: 13.8%
from 19.6% in 2020
US average: 18.4%
from 34.7% in 2020
US average: 20.9%
VA health care
from 2.0% in 2020
US average: 2.2%
Any private
from 55.6% in 2020
US average: 67.1%
Any public
from 50.5% in 2020
US average: 36.7%
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans Veterans by period of service, 2024
Gulf War (2001 or later) 19.2%(308)
Gulf War (1990s) 25.7%(413)
Share of the 1,606 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Drill deeper
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Frequently asked
How many people live in Alton, Illinois? Alton, Illinois has about 30,496 residents according to the 2000 Census.
What is the median household income in Alton, Illinois? The typical household in Alton, Illinois earns about $31,213 a year. Half of households make more than that, and half make less.
Is Alton, Illinois expensive? In Alton, Illinois, the median home is worth about $55,400, and the typical rent is about $430 a month.
How educated are people in Alton, Illinois? About 16.1% of adults age 25 and over in Alton, Illinois hold a bachelor's degree or higher.
What is the poverty rate in Alton, Illinois? About 18.7% of people in Alton, Illinois live below the federal poverty line.
Has Alton, Illinois grown since 1990? Yes, Alton, Illinois has shrunk since 1990. The population has lost about 2,409 residents, a change of about -7 percent over that period.
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