Alton Population History 1990 - 2023

Alton Population Facts

What is the current population of Alton?

Based on the latest 2024 data from the US census, the current population of Alton is 25,006. Alton, Illinois is the 1,578th largest city in the US.

What county is Alton, Illinois in?

Alton is located entirely in Madison County.

What is the size of Alton, Illinois in square miles?

Alton has an area of 15.5 square miles.

What was the peak population of Alton?

The peak population of Alton was in 1990, when its population was 33,135. In 1990, Alton was the 838th largest city in the US; now its fallen to the 1,578th largest city in the US. Alton is currently 24.5% smaller than it was in 1990.

How quickly is Alton shrinking?

Alton has shrunk 17.9% since the year 2000. Alton, Illinois's growth is extremely below average. 100% of similarly sized cities are growing faster since 2000.

What is the population density of Alton, Illinois?

Alton has a population density of 1,801.2 people per square mile.

Alton Demographics

What is the voting age population of Alton, Illinois?

The total voting age population of Alton, Illinois, meaning US citizens 18 or older, is 20,235. The voting age population is 47.1% male and 52.9% female.

What percentage of Alton, Illinois residents are senior citizens?

According to the latest census statistics, 16.2% of the residents of Alton are 65 or older.

What are the racial demographics of Alton, Illinois?

The racial demographics of Alton are 70.0% White, 24.9% Black, 4.5% Two or more races, 0.4% Asian, 0.2% Other and 0.1% American Indian. Additionally, 1.6% of the population identifies as Hispanic.

What percentage of Alton, Illinois residents are below the poverty line?

In Alton, 26.6% of residents have an income below the poverty line, and the child poverty rate is 38.7%. On a per-household basis, 21.2% of families are below the poverty line in Alton.

What percentage of Alton, Illinois residents are in the labor force?

Among those aged 16 and older, 61.5% of Alton residents are in the labor force.

What are the education levels among Alton, Illinois residents?

Among the adult population 25 years old and over, 88.0% of Alton residents have at least a high school degree or equivalent, 18.6% have a bachelor's degree and 7.4% have a graduate or professional degree.

What percentage of Alton, Illinois residents speak a non-English language at home?

Among Alton residents aged 5 and older, 2.5% of them speak a non-English language at home. Broken down by language: 1.1% of residents speak Spanish at home, 0.9% speak an Indo-European language, and 0.3% speak an Asian language.

Alton Income & Labor Statistics

What is the unemployment rate in Alton, Illinois?

The unemployment rate in Alton is 9.2%, which is calculated among residents aged 16 or older who are in the labor force.

What percentage of Alton, Illinois residents work for the government?

In Alton, 10.5% of the residents in the non-military labor force are employed by the local, state and federal government.

What is the median income in Alton, Illinois?

The median household income in Alton is $40,211.

Alton Housing & Rent Statistics

What percentage of housing units are owner-occupied in Alton, Illinois?

In Alton, 59.6% of housing units are occupied by their owners.

What percentage of housing units are rented in Alton, Illinois?

Renters occupy 40.4% of housing units in Alton.

What percentage of Alton, Illinois housing units were built before 1940?

Of all the housing units in Alton, 31.5% of them were build before 1940.

What percentage of Alton, Illinois housing units were built after 2000?

In Alton, 4.3% of the total housing units were built after the year 2000, which is approximately 590 units.

What is the median monthly rent in Alton, Illinois?

The median gross monthly rent payment for renters in Alton is $773.

What percentage of households in Alton, Illinois have broadband internet?

In Alton, 77.7% of households have an active broadband internet connection.