McLean County, IL Population

Overview

171,455

Total Population

33.6

Median age

51.23%

Female population %

95.2:100

Gender ratio (M:F)

20-24 years

Largest age group

45.3

Total dependency ratio

White

Largest racial group

8,852

Hispanic population

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

TABLE OF CONTENTS

Age

McLean County's population is young compared to the rest of the country:

The median age in McLean County is 33.6, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
McLean County's population under 18 was 21.59%, compared to the 22.51% nationwide.
McLean County's elderly or the senior population (over 65 age) was 13.35% as compared to 16.04% nationwide.
Of the total population in McLean County, 17.83% were under the age of 15, 27.66% aged 15 to 29, 41.16% aged 30 to 64, 11.80% aged 65 to 84, and 1.55% were 85 years of age and older.

There are 4,205 more females than males in McLean County:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 51.23% females and 48.77% males in McLean County, IL.
The McLean County, IL gender ratio is 95.2:100 i.e. 95.2 men to 100 women (0.952).
For male population, the largest age group is 20-24 years with a population of 10,219.
For the female population, the largest age group is 20-24 years with a population of 10,732.

McLean County's population has become increasingly diverse:

Racial distribution of McLean County population: 81.89% are White, 8.29% are Black or African American, 0.16% are American Indian and Alaska Native, 5.14% are Asian, 0.01% are Native Hawaiian and other Pacific Islander, 0.88% are some other race and 3.63% are multiracial.
McLean County's racial breakdown clearly shows that there is an absolute majority of White population in the county.
By ethnicity, 8,852 is Hispanic or Latino (of any race), and 162,603 (94.84% of the total population) is Non-Hispanic.
The largest racial group in McLean County is White with a population of 140,405 (81.89% of the total population).

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

The peak population was 175,087 in the year 2013
From 2000 to 2010, McLean County's population increased by 18,966 (12.57%), as compared to the national growth of 9.63%.
From 2010 to 2020, McLean County's population increased by 1,139 (0.67%), 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, McLean County's population was lowest in year 2000 at 150,849.