Sangamon County, Illinois Population 2024

192,758

Sangamon County, Illinois's estimated 2024 population is 192,758 with a growth rate of -0.46% 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 -2.53% since that time.

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
2029188,318-888-0.47%
2028189,206-888-0.47%
2027190,094-888-0.46%
2026190,982-888-0.46%
2025191,870-888-0.46%
2024192,758-888-0.46%
2023193,646-888-0.46%
2022194,534-888-0.45%
2021195,422-700-0.36%
2020196,1221,2400.64%
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%
183012,960-175,358-93.12%
showing: 37 rows
2024 Growth Rate
-0.46% (-888)
County Website
Sangamon County
County Seat
2020 Population
196,122
Area
868 mi²
Density
222 people/mi²
Growth Since 2020
-1.72% (-3,364)
Founded
1821

Sangamon County, Illinois Population 2024

Population by Race

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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

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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

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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

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$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

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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

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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

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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

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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

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Sangamon County, Illinois Veterans by War

count

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Sangamon County, Illinois Veterans by Age

count

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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