Mason County, IL Population

Overview

13,225

Total Population

45.2

Median age

50.28%

Female population %

98.9:100

Gender ratio (M:F)

55-59 years

Largest age group

64.6

Total dependency ratio

White

Largest racial group

17

Hispanic population

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

TABLE OF CONTENTS

Age

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

The median age in Mason County is 45.2, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Mason County's population under 18 was 20.84%, compared to the 22.51% nationwide.
Mason County's elderly or the senior population (over 65 age) was 22.21% as compared to 16.04% nationwide.
Of the total population in Mason County, 17.05% were under the age of 15, 16.02% aged 15 to 29, 44.73% aged 30 to 64, 19.36% aged 65 to 84, and 2.85% were 85 years of age and older.

There are 75 more females than males in Mason County:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 50.28% females and 49.72% males in Mason County, IL.
The Mason County, IL gender ratio is 98.9:100 i.e. 98.9 men to 100 women (0.989).
For male population, the largest age group is 55-59 years with a population of 592.
For the female population, the largest age group is 55-59 years with a population of 524.

Mason County's population has become increasingly diverse:

Racial distribution of Mason County population: 96.67% are White, 0.48% are Black or African American, 0.11% are American Indian and Alaska Native, 0.23% are Asian, 0.34% are some other race and 2.18% are multiracial.
Mason County's racial breakdown clearly shows that there is an absolute majority of White population in the county.
By ethnicity, 17 is Hispanic or Latino (of any race), and 13,055 (98.71% of the total population) is Non-Hispanic.
The largest racial group in Mason County is White with a population of 12,784 (96.67% of the total population).

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

The peak population was 15,949 in the year 2000
From 2000 to 2010, Mason County's population decreased by 1,298 (8.14%), as compared to the national growth of 9.63%.
From 2010 to 2020, Mason County's population decreased by 1,594 (10.88%), 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, Mason County's population was lowest in year 2022 at 12,748.