Demographics in Alton, IL
Population, age, race, ethnicity, and household statistics — 2023 ACS Data
Where is Alton?
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Population
Source: U.S. Census Bureau ACS (2023)Total Population
25,430
Male
12,195
48.0%
Female
13,235
52.0%
Median Age
38.4
Age Distribution
Source: U.S. Census Bureau ACS (2023)Race & Ethnicity
Source: U.S. Census Bureau ACS (2023)White66.7%
Black24.2%
Hispanic2.7%
Asian1.1%
Two or More6.8%
Other1.1%
Education & Household
Source: U.S. Census Bureau ACS (2023)Bachelor's or Higher
14.7%
High School or Higher
36.2%
Foreign Born
2.3%
Veterans
6.7%
Married
28.9%
Avg Household Size
2.3
Marital Status by Age
Source: U.S. Census Bureau ACS (2023)Alton, IL has a population of 25,430 with a median age of 38.4. The racial makeup is 66.7% White, 2.7% Hispanic, 24.2% Black, 1.1% Asian. About 14.7% of residents hold a bachelor's degree or higher. The foreign-born population is 2.3%.