Decatur County, TN Population

Overview

11,460

Total Population

45.6

Median age

51.14%

Female population %

95.5:100

Gender ratio (M:F)

55-59 years

Largest age group

68.4

Total dependency ratio

White

Largest racial group

392

Hispanic population

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

TABLE OF CONTENTS

Age

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

The median age in Decatur County is 45.6, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Decatur County's population under 18 was 20.87%, compared to the 22.51% nationwide.
Decatur County's elderly or the senior population (over 65 age) was 23.48% as compared to 16.04% nationwide.
Of the total population in Decatur County, 17.12% were under the age of 15, 15.53% aged 15 to 29, 43.87% aged 30 to 64, 21.45% aged 65 to 84, and 2.03% were 85 years of age and older.

There are 262 more females than males in Decatur County:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 51.14% females and 48.86% males in Decatur County, TN.
The Decatur County, TN gender ratio is 95.5:100 i.e. 95.5 men to 100 women (0.955).
For male population, the largest age group is 60-64 years with a population of 426.
For the female population, the largest age group is 55-59 years with a population of 489.

Decatur County's population has become increasingly diverse:

Racial distribution of Decatur County population: 92.30% are White, 2.55% are Black or African American, 0.07% are American Indian and Alaska Native, 0.12% are Asian, 0.65% are some other race and 4.31% are multiracial.
Decatur County's racial breakdown clearly shows that there is an absolute majority of White population in the county.
By ethnicity, 392 is Hispanic or Latino (of any race), and 11,068 (96.58% of the total population) is Non-Hispanic.
The largest racial group in Decatur County is White with a population of 10,578 (92.30% of the total population).

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

The peak population was 11,728 in the year 2016
From 2000 to 2010, Decatur County's population increased by 41 (0.35%), as compared to the national growth of 9.63%.
From 2010 to 2020, Decatur County's population decreased by 276 (2.36%), 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, Decatur County's population was lowest in year 2006 at 11,413.