Alton Population

2010–2026

89

2026 projection

9.2% since 2020 (decrease)

020406080100120201020122014201620182020202220242026

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Alton. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202689-22.20%
202591-22.15%
202493-33.13%
202396-22.04%
20229800.00%
20219800.00%
202098+77.69%
201991-11.09%
201892-22.13%
201794-11.05%

Showing 10 of 17 years.

Alton Demographics

34.3median age

Median age

Female52.5 yrs
Male29.8 yrs

Adults

99
29 seniors · 29%70 other adults

Sex

Female 49.6% · 60Male 50.4% · 61

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 1 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Alton Marital Status

28% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married28%39%19%
Never married29%35%24%
Divorced39%20%56%
Widowed4%7%2%
Separated0%0%0%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201