Alton city, Illinois demographics
Population: 25,902
Median age: 38.1
Median household income: 45,225
Alton is a city in Madison County, Illinois, United States.
Demographics, population, home values, social and economic characteristics of Alton city, IL.
Population
| 2021 | 25,902 |
| 2020 | 26,490 |
| 2019 | 26,640 |
| 2018 | 26,884 |
| 2017 | 27,037 |
| 2016 | 27,175 |
| 2015 | 27,335 |
| 2014 | 27,517 |
| 2013 | 27,635 |
| 2012 | 27,868 |
| 2011 | 28,159 |
| 2010 | 28,380 |
| 2009 | 29,405 |
Census data for Alton city, Illinois
Demographic and housing estimates in Alton city, Illinois
| Total population | 25,902 |
| Male | 12,387 |
| Female | 13,515 |
| Total population | 25,902 |
| Under 5 years | 1,429 |
| 5 to 9 years | 2,042 |
| 10 to 14 years | 1,855 |
| 15 to 19 years | 1,600 |
| 20 to 24 years | 1,014 |
| 25 to 34 years | 3,744 |
| 35 to 44 years | 3,505 |
| 45 to 54 years | 3,035 |
| 55 to 59 years | 1,561 |
| 60 to 64 years | 1,881 |
| 65 to 74 years | 2,684 |
| 75 to 84 years | 1,141 |
| 85 years and over | 411 |
| Median age (years) | 38.1 |
| Under 18 years | 6,259 |
| 16 years and over | 20,292 |
| 18 years and over | 19,643 |
| 21 years and over | 18,726 |
| 62 years and over | 5,351 |
| 65 years and over | 4,236 |
| Total population | 25,902 |
| One race | 24,575 |
| White | 17,688 |
| Black or African American | 6,514 |
| American Indian and Alaska Native | 50 |
| Asian | 148 |
| Native Hawaiian and Other Pacific Islander | 0 |
| Some other race | 175 |
| Two or more races | 1,327 |
| Citizen, VOTING AGE 18 and over population | 19,448 |
| Male Citizen, VOTING AGE 18 and over population | 9,154 |
| Female Citizen, VOTING AGE 18 and over population | 10,294 |
Social characteristics in Alton city, Illinois
| Total households | 11,097 |
| Family households (families) | 3,242 |
| Married-couple family | 1,048 |
| Male householder, no wife present, family | 2,728 |
| Female householder, no husband present, family | 2,136 |
| Nonfamily households | 4,079 |
| Average household size | 3,298 |
| Average family size | 2.29 |
Economic characteristics in Alton city, Illinois
| Total households | 11,097 |
| Less than $10,000 | 1,050 |
| $10,000 to $14,999 | 613 |
| $15,000 to $24,999 | 1,463 |
| $25,000 to $34,999 | 1,432 |
| $35,000 to $49,999 | 1,538 |
| $50,000 to $74,999 | 2,100 |
| $75,000 to $99,999 | 1,129 |
| $100,000 to $149,999 | 1,230 |
| $150,000 to $199,999 | 367 |
| $200,000 or more | 175 |
| Median household income (dollars) | 45,225 |
Housing characteristics in Alton city, Illinois
| Total housing units | 12,836 |
| Occupied housing units | 11,097 |
| Vacant housing units | 1,739 |
| Total housing units | 12,836 |
| 1-unit, detached | 9,705 |
| 1-unit, attached | 151 |
| 2 units | 849 |
| 3 or 4 units | 805 |
| 5 to 9 units | 311 |
| 10 to 19 units | 238 |
| 20 or more units | 588 |
| Mobile home | 189 |
| Boat, RV, van, etc. | 0 |
| Total housing units | 12,836 |
| Built 2014 or later | 0 |
| Built 2010 to 2013 | 52 |
| Built 2000 to 2009 | 578 |
| Built 1990 to 1999 | 431 |
| Built 1980 to 1989 | 706 |
| Built 1970 to 1979 | 1,153 |
| Built 1960 to 1969 | 1,236 |
| Built 1950 to 1959 | 2,744 |
| Built 1940 to 1949 | 2,243 |
| Built 1939 or earlier | 3,693 |
| Total housing units | 12,836 |
| 1 room | 401 |
| 2 rooms | 175 |
| 3 rooms | 1,115 |
| 4 rooms | 2,469 |
| 5 rooms | 2,880 |
| 6 rooms | 2,373 |
| 7 rooms | 1,508 |
| 8 rooms | 930 |
| 9 rooms or more | 985 |
| Median rooms | 5.3 |
| Total housing units | 12,836 |
| No bedroom | 422 |
| 1 bedroom | 1,583 |
| 2 bedrooms | 5,055 |
| 3 bedrooms | 4,307 |
| 4 bedrooms | 1,103 |
| 5 or more bedrooms | 366 |
| Occupied housing units | 11,097 |
| Owner-occupied | 6,550 |
| Renter-occupied | 4,547 |
| Average household size of owner-occupied unit | 2.24 |
| Average household size of renter-occupied unit | 2.36 |
| Occupied housing units | 11,097 |
| Moved in 2017 or later | 842 |
| Moved in 2015 to 2016 | 3,544 |
| Moved in 2010 to 2014 | 1,770 |
| Moved in 2000 to 2009 | 2,020 |
| Moved in 1990 to 1999 | 1,371 |
| Moved in 1989 and earlier | 1,550 |
| Owner-occupied units | 6,550 |
| Less than $50,000 | 1,228 |
| $50,000 to $99,999 | 3,151 |
| $100,000 to $149,999 | 1,324 |
| $150,000 to $199,999 | 460 |
| $200,000 to $299,999 | 222 |
| $300,000 to $499,999 | 110 |
| $500,000 to $999,999 | 55 |
| $1,000,000 or more | 0 |
| Median (dollars) | 82,000 |
| Owner-occupied units | 6,550 |
| Housing units with a mortgage | 4,034 |
| Housing units without a mortgage | 2,516 |
| Occupied units paying rent | 4,378 |
| Less than $500 | 745 |
| $500 to $999 | 2,187 |
| $1,000 to $1,499 | 1,299 |
| $1,500 to $1,999 | 135 |
| $2,000 to $2,499 | 0 |
| $2,500 to $2,999 | 12 |
| $3,000 or more | 0 |
| Median (dollars) | 824 |
| No rent paid | 169 |
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