Shelby County, IL Population

Overview

21,160

Total Population

45.0

Median age

50.66%

Female population %

97.4:100

Gender ratio (M:F)

60-64 years

Largest age group

68.1

Total dependency ratio

White

Largest racial group

242

Hispanic population

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

TABLE OF CONTENTS

Age

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

The median age in Shelby County is 45.0, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Shelby County's population under 18 was 21.69%, compared to the 22.51% nationwide.
Shelby County's elderly or the senior population (over 65 age) was 22.55% as compared to 16.04% nationwide.
Of the total population in Shelby County, 17.97% were under the age of 15, 15.70% aged 15 to 29, 43.78% aged 30 to 64, 19.22% aged 65 to 84, and 3.33% were 85 years of age and older.

There are 280 more females than males in Shelby County:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 50.66% females and 49.34% males in Shelby County, IL.
The Shelby County, IL gender ratio is 97.4:100 i.e. 97.4 men to 100 women (0.974).
For male population, the largest age group is 55-59 years with a population of 825.
For the female population, the largest age group is 60-64 years with a population of 878.

Shelby County's population has become increasingly diverse:

Racial distribution of Shelby County population: 97.58% are White, 0.34% are Black or African American, 0.09% are American Indian and Alaska Native, 0.35% are Asian, 0.13% are Native Hawaiian and other Pacific Islander, 0.13% are some other race and 1.38% are multiracial.
Shelby County's racial breakdown clearly shows that there is an absolute majority of White population in the county.
By ethnicity, 242 is Hispanic or Latino (of any race), and 20,918 (98.86% of the total population) is Non-Hispanic.
The largest racial group in Shelby County is White with a population of 20,648 (97.58% of the total population).

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

The peak population was 22,832 in the year 2000
From 2000 to 2010, Shelby County's population decreased by 478 (2.09%), as compared to the national growth of 9.63%.
From 2010 to 2020, Shelby County's population decreased by 1,430 (6.40%), 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, Shelby County's population was lowest in year 2022 at 20,761.