Sangamon County, Illinois Population 2024

192,831

Sangamon County, Illinois's estimated 2024 population is 192,831 with a growth rate of -0.34% in the past year according to the most recent United States census data. Sangamon County, Illinois is the 11th largest county in Illinois. The 2010 population was 197,769 and has seen a growth of -2.5% since that time.

Note: data after 2022 is projected based on recent change
Year
Population
Growth
Change
2029189,531-660-0.35%
2028190,191-660-0.35%
2027190,851-660-0.34%
2026191,511-660-0.34%
2025192,171-660-0.34%
2024192,831-660-0.34%
2023193,491-660-0.34%
2022194,151-1,220-0.62%
2021195,371-773-0.39%
2020196,1441,2620.65%
2019194,882-920-0.47%
2018195,802-1,361-0.69%
2017197,163-922-0.47%
2016198,085-888-0.45%
2015198,973-279-0.14%
2014199,252620.03%
2013199,190-241-0.12%
2012199,4313790.19%
2011199,0521,2830.65%
2010197,76900%
1990178,3862,2971.3%
1980176,08914,7549.14%
1970161,33514,79610.1%
1960146,53915,05511.45%
1950131,48413,57211.51%
1940117,9126,1795.53%
1930111,73311,47111.44%
1920100,2629,23810.15%
191091,02419,43127.14%
190071,59310,39816.99%
189061,1958,30115.69%
188052,8946,54214.11%
187046,35214,07843.62%
186032,27413,04667.85%
185019,2284,51230.66%
184014,7161,75613.55%
183012,960-176,571-93.16%
2024 Growth Rate
-0.34% (-660)
County Website
Sangamon County
County Seat
Springfield
2020 Population
196,144
Area
868 mi²
Density
222 people/mi²
Growth Since 2020
-1.69% (-3,313)
Founded
1821

Population by Race

Race
Population
Percentage (of total)
White156,66379.88%
Black or African American24,90212.7%
Two or more races9,0224.6%
Asian4,2742.18%
Other race1,0560.54%
Native American1730.09%
Native Hawaiian or Pacific Islander320.02%

White

Black or African American

Two or more races

Asian

Other race

Native American

Native Hawaiian or Pacific Islander

Sangamon County, Illinois Population by Race

Sangamon County, Illinois Population Pyramid 2024

Sangamon County, Illinois Median Age

40.6

Total

39.4

Male

41.6

Female

Sangamon County, Illinois Adults

There are 153,007 adults, (36,316 of whom are seniors) in Sangamon County, Illinois.

Sangamon County, Illinois Age Dependency

68.1

Age Dependency Ratio

31.1

Old Age Dependency Ratio

36.9

Child Dependency Ratio

Sangamon County, Illinois Sex Ratio

Female101,27451.64%
Male94,84848.36%

Sangamon County, Illinois Population by Age

Sangamon County, Illinois Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All84,0172.2970.129.9
Married35,7282.9888.711.3
Non Family34,4691.1957.942.1
Female10,4743.2948.751.3
Male3,3463.0963.436.6

2.96

Average Family Size

2.29

Average Household Size

70.1%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Sangamon County, Illinois Households and Families

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade7,0595.16%
Associates Degree11,9618.74%
Bachelors Degree28,22220.63%
Graduate Degree19,06413.94%
High School Graduate38,77228.35%
Less Than 9th Grade2,2421.64%
Some College29,46321.54%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Sangamon County, Illinois Educational Attainment by Sex (over 25)

Sangamon County, Illinois Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

Race
Total
High School
Bachelors
White113,747107,79540,757
Black14,52911,8582,483
2+ Races3,8273,5251,273
Hispanic2,7802,4741,150
Asian2,7512,5421,980
Other Race570536206
Native American91663
Islander20200

The highest rate of high school graduation is among islander people with a rate of 100%.

The highest rate of bachelors degrees is among asian people with a rate of 71.97%.

Sangamon County, Illinois Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$62,007$73,052$51,914
Graduate Degree$80,046$89,380$75,227
High School Graduate$37,081$45,120$31,135
Less Than 9th Grade$25,496$32,556$20,423
Overall$50,714$56,924$43,918
Some College$45,222$52,418$38,470

$50,714

Average Earnings

$56,924

Average Male

$43,918

Average Female

Sangamon County, Illinois Earnings by Educational Attainment

Sangamon County, Illinois Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Sangamon County, Illinois Language

95.54% of Sangamon County, Illinois residents speak only English, while 4.46% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 1.53% of the population.

Sangamon County, Illinois Language

Sangamon County, Illinois Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
White152,13612,5148.23%
Black24,1049,54539.6%
Multiple8,8271,99122.56%
Hispanic4,67875716.18%
Asian4,1482636.34%
Other95726227.38%
Native1292821.71%

12.91%

Overall Poverty Rate

11.68%

Male Poverty Rate

14.05%

Female Poverty Rate

Poverty in Sangamon County, Illinois

The race most likely to be in poverty in Sangamon County, Illinois is Black, with 39.6% below the poverty level.

The race least likely to be in poverty in Sangamon County, Illinois is Asian, with 6.34% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.31%. Among those working part-time, it was 16.19%, and for those that did not work, the poverty rate was 20.9%.

Sangamon County, Illinois Poverty

rate

Rate
Poverty
Less Than 9th Grade33.37%
High School14.39%
Some College9.82%
Bachelors or Greater3.29%

Sangamon County, Illinois Poverty Rate by Education

rate

Rate
Poverty
Female Unemployed46.16%
Male Unemployed39.15%
Female Employed7.47%
Male Employed3.82%

Sangamon County, Illinois Poverty Rate by Employment Status and Sex

Sangamon County, Illinois Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$96,427$119,058
Households$71,653$94,790
Married Families$116,488$142,313
Non Families$45,133$56,873

mean

median

Income by Household Type

Sangamon County, Illinois Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

46.4%

Overall Marriage Rate

49.0%

Male Marriage Rate

43.9%

Female Marriage Rate

Sangamon County, Illinois Married by Age and Sex

male

female

Sangamon County, Illinois Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 35-44.

Sangamon County, Illinois Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Sangamon County, Illinois Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

11,139

Number of Veterans

10,051

Male Veterans

1,088

Female Veterans

War
Veterans
Vietnam4,210
Second Gulf War2,345
First Gulf War2,143
Korea539
World War II183

Sangamon County, Illinois Veterans by War

count

Age Group
Veterans
65 to 743,222
35 to 542,570
75+2,337
55 to 642,180
18 to 34830

Sangamon County, Illinois Veterans by Age

count

Name
Veterans
% of Total
White10,0677.97%
Black6693.91%
2+ Races2735.29%
Hispanic1093.31%
Asian782.43%
Other Race476.96%
Native American53.13%

Sangamon County, Illinois Veterans by Race

Sangamon County, Illinois Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

6.7%

Veteran Poverty Rate

22.65%

Veteran Disability Rate

Sangamon County, Illinois Veterans by Education

LaborForceParticipation

62.1%

Labor Force Participation

58.7%

Employment Rate

5.2%

Unemployment Rate

Sangamon County, Illinois Employment by Age

LaborForceParticipation

Sangamon County, Illinois Employment by Race

LaborForceParticipation

Sangamon County, Illinois Employment by Education

Origin of Non-Citizens

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

Europe

Asia

Africa

Oceania

Latin America

North America

80.75%

Born in Sangamon County, Illinois

96.99%

Native Born

3.01%

Foreign Born

1.35%

Non Citizen

1.66%

Naturalized

Place of Birth

96.99% of Sangamon County, Illinois residents were born in the United States, with 80.75% having been born in Illinois. 1.35% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Sangamon County, Illinois Place of Birth

Sources