Piatt County, IL Population

Overview

16,664

Total Population

41.9

Median age

50.66%

Female population %

97.4:100

Gender ratio (M:F)

55-59 years

Largest age group

60.4

Total dependency ratio

White

Largest racial group

244

Hispanic population

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

TABLE OF CONTENTS

Age

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

The median age in Piatt County is 41.9, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Piatt County's population under 18 was 22.43%, compared to the 22.51% nationwide.
Piatt County's elderly or the senior population (over 65 age) was 19.50% as compared to 16.04% nationwide.
Of the total population in Piatt County, 18.15% were under the age of 15, 16.45% aged 15 to 29, 45.89% aged 30 to 64, 16.85% aged 65 to 84, and 2.65% were 85 years of age and older.

There are 220 more females than males in Piatt 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 Piatt County, IL.
The Piatt 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 60-64 years with a population of 658.
For the female population, the largest age group is 55-59 years with a population of 684.

Piatt County's population has become increasingly diverse:

Racial distribution of Piatt County population: 96.39% are White, 0.64% are Black or African American, 0.10% are American Indian and Alaska Native, 0.03% are Asian, 0.26% are some other race and 2.58% are multiracial.
Piatt County's racial breakdown clearly shows that there is an absolute majority of White population in the county.
By ethnicity, 244 is Hispanic or Latino (of any race), and 16,42 (98.54% of the total population) is Non-Hispanic.
The largest racial group in Piatt County is White with a population of 16,062 (96.39% of the total population).

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

The peak population was 16,781 in the year 2021
From 2000 to 2010, Piatt County's population increased by 355 (2.17%), as compared to the national growth of 9.63%.
From 2010 to 2020, Piatt County's population decreased by 36 (0.22%), 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, Piatt County's population was lowest in year 2002 at 16,174.