Sangamon County, IL Population

Overview

196,759

Total Population

40.5

Median age

51.75%

Female population %

93.2:100

Gender ratio (M:F)

55-59 years

Largest age group

56.7

Total dependency ratio

White

Largest racial group

4,779

Hispanic population

Sources: U.S. Census Bureau, American Community Survey (ACS) 2021

TABLE OF CONTENTS

Age

Sangamon County's population is old compared to the rest of the country:

The median age in Sangamon County is 40.5, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Sangamon County's population under 18 was 22.32%, compared to the 22.51% nationwide.
Sangamon County's elderly or the senior population (over 65 age) was 17.91% as compared to 16.04% nationwide.
Of the total population in Sangamon County, 18.29% were under the age of 15, 18.19% aged 15 to 29, 45.61% aged 30 to 64, 15.90% aged 65 to 84, and 2.02% were 85 years of age and older.

There are 6,893 more females than males in Sangamon County:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 51.75% females and 48.25% males in Sangamon County, IL.
The Sangamon County, IL gender ratio is 93.2:100 i.e. 93.2 men to 100 women (0.932).
For male population, the largest age group is 55-59 years with a population of 6,946.
For the female population, the largest age group is 55-59 years with a population of 7,749.

Sangamon County's population has become increasingly diverse:

Racial distribution of Sangamon County population: 80.57% are White, 12.75% are Black or African American, 0.09% are American Indian and Alaska Native, 2.14% are Asian, 0.02% are Native Hawaiian and other Pacific Islander, 0.48% are some other race and 3.95% are multiracial.
Sangamon County's racial breakdown clearly shows that there is an absolute majority of White population in the county.
By ethnicity, 4,779 is Hispanic or Latino (of any race), and 191,98 (97.57% of the total population) is Non-Hispanic.
The largest racial group in Sangamon County is White with a population of 158,534 (80.57% of the total population).

Sangamon County's population has already reached its peak and is showing a trend of decline:

The peak population was 199,431 in the year 2012
From 2000 to 2010, Sangamon County's population increased by 8,644 (4.57%), as compared to the national growth of 9.63%.
From 2010 to 2020, Sangamon County's population decreased by 1,647 (0.83%), according to Census Bureau's Population Estimates Program. For the same period, the rate of growth for the United States was 7.17%.
Between the year 2000 and 2022, Sangamon County's population was lowest in year 2000 at 189,125.