Alton, Illinois Population 2024

24,805
010K20K30K40K186018801900192019401960198020002020YearPopulation

Alton Demographics

According to the most recent ACS, the racial composition of Alton was:

  • White: 66.7%
  • Black or African American: 24.16%
  • Two or more races: 6.79%
  • Asian: 1.14%
  • Other race: 1.05%
  • Native American: 0.17%
  • Native Hawaiian or Pacific Islander: 0%
Land Area (mi²)
15.7 sq mi
Density (mi²)
1,582.90/sq mi
Growth Since 2020
-3.14% (-803)
The current population of Alton, Illinois is 24,805 based on our projections of the latest US Census estimates (released May 2024). The last official US Census in 2020 recorded the population at 25,608.

Population by Race

Race
Population
Percentage (of total)
White16,96166.7%
Black or African American6,14424.16%
Two or more races1,7266.79%
Asian2891.14%
Other race2671.05%
Native American430.17%
Native Hawaiian or Pacific Islander00%
66.7%24.16%6.79%Race

White

Black or African American

Two or more races

Asian

Other race

Native American

Native Hawaiian or Pacific Islander

Alton Population by Race

Alton Population Pyramid 2024

010203040506070801.2K1.1K1K900800700600500400300200100001002003004005006007008009001K1.1K1.2KMaleFemale

Alton Median Age

38.4

Total

37.6

Male

40.1

Female

Alton Adults

There are 19,533 adults, (4,397 of whom are seniors) in Alton.

Alton Age Dependency

68

Age Dependency Ratio

29

Old Age Dependency Ratio

39

Child Dependency Ratio

Alton Sex Ratio

Female13,23552.04%
Male12,19547.96%

Alton Population by Age

Alton Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All10,8112.357.142.9
Non Family5,1151.2649.650.4
Married3,2023.1376.523.5
Female2,0273.4544.455.6
Male4672.9762.537.5

3.09

Average Family Size

2.3

Average Household Size

57.1%

Rate of Home Ownership

29.62%18.75%47.31%Households by Type

Married

Male

Female

NonFamily

MarriedMaleAllNon FamilyFemale00.10.20.30.40.50.60.70.80.91

owner

renter

Alton Households and Families

Less Than 9th Grade9th to 12th GradeHigh School GraduateSome CollegeAssociates DegreeBachelors DegreeGraduate Degree05001K1.5K2K2.5K3K

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade1,3627.74%
Associates Degree1,98911.3%
Bachelors Degree2,38813.57%
Graduate Degree1,3377.6%
High School Graduate5,47131.09%
Less Than 9th Grade2521.43%
Some College4,79727.26%
7.74%31.09%27.26%11.3%13.57%7.6%Over 25 Education

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Alton Educational Attainment by Sex (over 25)

Alton Educational Attainment by Race

2+ RacesWhiteOther RaceNative AmericanBlackHispanicAsian0%20%40%60%80%100%

High School Graduation Rate

Bachelors Rate

Race
Total
High School
Bachelors
White12,72411,7782,938
Black3,6153,114409
2+ Races681636166
Hispanic443373113
Asian230177135
Other Race20919048
Native American28251

The highest rate of high school graduation is among 2+ races people with a rate of 93.39%.

The highest rate of bachelors degrees is among asian people with a rate of 58.7%.

Alton Educational Attainment by Race

OverallLess Than 9th GradeHigh School GraduateSome CollegeBachelors DegreeGraduate Degree$0$10,000$20,000$30,000$40,000$50,000$60,000$70,000

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$49,675$46,976$51,683
Graduate Degree$68,674$68,188$69,423
High School Graduate$29,015$36,667$26,878
Less Than 9th Grade$24,028$33,080$0
Overall$39,218$44,260$36,250
Some College$38,472$45,421$35,537

$39,218

Average Earnings

$44,260

Average Male

$36,250

Average Female

Alton Earnings by Educational Attainment

Alton Language by Age

96.33%Languages

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Alton Language

96.33% of Alton residents speak only English, while 3.67% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 1.4% of the population.

Alton Language

Alton Poverty by Race

BlackNativeMultipleOtherHispanicWhiteAsian0%5%10%15%20%25%30%35%40%45%

rate

Name
Total
In Poverty
Poverty Rate
Black6,0162,69444.78%
White16,3222,63916.17%
Multiple1,70356433.12%
Hispanic66013220%
Other2578332.3%
Asian2884314.93%
Native431841.86%

24.47%

Overall Poverty Rate

25.44%

Male Poverty Rate

23.58%

Female Poverty Rate

Poverty in Alton

The race most likely to be in poverty in Alton is Black, with 44.78% below the poverty level.

The race least likely to be in poverty in Alton is Asian, with 14.93% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 4.55%. Among those working part-time, it was 29.55%, and for those that did not work, the poverty rate was 34.75%.

Alton Poverty

Less Than 9th GradeHigh SchoolSome CollegeBachelors or Greater0%5%10%15%20%25%30%35%40%45%50%

rate

Rate
Poverty
Less Than 9th Grade47.45%
High School20.74%
Some College16.98%
Bachelors or Greater10.17%

Alton Poverty Rate by Education

Male EmployedMale UnemployedFemale EmployedFemale Unemployed0%5%10%15%20%25%30%35%40%45%50%55%60%65%

rate

Rate
Poverty
Male Unemployed62.9%
Female Unemployed43.03%
Female Employed13.11%
Male Employed7.49%

Alton Poverty Rate by Employment Status and Sex

Alton Income by Household Type

Under10k10kTo15k15kTo25k25kTo35k35kTo50k50kTo75k75kTo100k100kTo150k150kTo200kOver200k05101520

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$67,800$79,635
Households$53,005$66,863
Married Families$83,696$-999,999,999
Non Families$34,924$49,120
HouseholdsFamiliesMarried FamiliesNon Families020,00040,00060,00080,000

mean

median

Income by Household Type

Alton Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

34.4%

Overall Marriage Rate

37.2%

Male Marriage Rate

32.0%

Female Marriage Rate

Alton Married by Age and Sex

55-6435-4445-54Over 6520-3401020304050

male

female

Alton Marriage

The age group where males are most likely to be married is 35-44, while the female age group most likely to be married is 55-64.

Alton Marital Status by Race

AsianHispanicWhiteWhiteNonHispanicOtherRaceTwoOrMoreRacesBlackIndian0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

NeverMarried

Alton Marital Status

21.06%26.54%50.3%Veterans by War

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

1,693

Number of Veterans

1,495

Male Veterans

198

Female Veterans

War
Veterans
Vietnam578
First Gulf War305
Second Gulf War242
Korea24
World War II0

Alton Veterans by War

18 to 3435 to 5455 to 6465 to 7475+050100150200250300350400450

count

Age Group
Veterans
65 to 74448
35 to 54436
55 to 64388
75+325
18 to 3496

Alton Veterans by Age

WhiteBlackOther RaceHispanic2+ RacesNative American02004006008001,0001,2001,4001,600

count

Name
Veterans
% of Total
White1,43510.13%
Black2265.58%
Other Race188.11%
Hispanic173.46%
2+ Races131.6%
Native American12.78%

Alton Veterans by Race

Alton Veterans by Education

33.08%43.65%20.2%Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

10.34%

Veteran Poverty Rate

35.91%

Veteran Disability Rate

Alton Veterans by Education

16 - 1920 - 2425 - 2930 - 3435 - 4445 - 5455 - 5960 - 6465 - 7475+0102030405060708090

LaborForceParticipation

60.8%

Labor Force Participation

57.7%

Employment Rate

5.1%

Unemployment Rate

Alton Employment by Age

AsianBlackWhiteWhite Non-HispanicHispanicNative American2+ RacesOther Race0102030405060708090100

LaborForceParticipation

Alton Employment by Race

Less Than High SchoolHigh School GraduateSome CollegeBachelors or Greater0102030405060708090

LaborForceParticipation

Alton Employment by Education

Origin of Non-Citizens

8.08%38.08%39.62%14.23%Origin

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

25.67%38.51%15.82%14.03%5.97%Origin

Europe

Asia

Africa

Oceania

Latin America

North America

69.82%

Born in Alton

97.66%

Native Born

2.34%

Foreign Born

1.02%

Non Citizen

1.32%

Naturalized

Place of Birth

97.66% of Alton residents were born in the United States, with 69.82% having been born in Illinois. 1.02% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Alton Place of Birth

Note: data after 2022 is projected based on recent change
Year
Population
Growth
Change
202923,801-201-0.84%
202824,002-201-0.83%
202724,203-200-0.82%
202624,403-201-0.82%
202524,604-201-0.81%
202424,805-201-0.8%
202325,006-183-0.73%
202225,189-233-0.92%
202125,422-186-0.73%
202025,608-654-2.49%
201926,262-245-0.92%
201826,507-223-0.83%
201726,730-145-0.54%
201626,875-136-0.5%
201527,011-193-0.71%
201427,204-186-0.68%
201327,390-124-0.45%
201227,514-194-0.7%
201127,708-193-0.69%
201027,90100%
200030,496-2,409-7.32%
199032,905-1,266-3.7%
198034,171-5,529-13.93%
197039,700-3,347-7.78%
196043,04710,49732.25%
195032,5501,2954.14%
194031,2551,1043.66%
193030,1515,46922.16%
192024,6827,15440.81%
191017,5283,31823.35%
190014,2103,91638.04%
189010,2941,31914.7%
18808,9753103.58%
18708,6652,33336.84%
18606,3322,74776.62%
18503,585-20,216-84.94%

Alton Population by Year