Decatur City, IA Population

Overview

200

Total Population

31.0

Median age

54.50%

Female population %

83.5:100

Gender ratio (M:F)

20-24 years

Largest age group

56.2

Total dependency ratio

White

Largest racial group

3

Hispanic population

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

TABLE OF CONTENTS

Age

Decatur City's population is young compared to the rest of the country:

The median age in Decatur City is 31.0, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Decatur City's population under 18 was 24.00%, compared to the 22.51% nationwide.
Decatur City's elderly or the senior population (over 65 age) was 12.50% as compared to 16.04% nationwide.
Of the total population in Decatur City, 23.50% were under the age of 15, 26.50% aged 15 to 29, 37.50% aged 30 to 64, 12.50% aged 65 to 84, and 0.00% were 85 years of age and older.

There are 18 more females than males in Decatur City:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 54.50% females and 45.50% males in Decatur City, IA.
The Decatur City, IA gender ratio is 83.5:100 i.e. 83.5 men to 100 women (0.835).
For male population, the largest age group is 20-24 years with a population of 22.
For the female population, the largest age group is 20-24 years with a population of 23.

Decatur City's population is moderately diverse:

Racial distribution of Decatur City population: 91.50% are White, 1.50% are some other race and 7% are multiracial.
Decatur City's racial breakdown clearly shows that there is an absolute majority of White population in the city.
By ethnicity, 3 is Hispanic or Latino (of any race), and 197 (98.50% of the total population) is Non-Hispanic.
The largest racial group in Decatur City is White with a population of 183 (91.50% of the total population).

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

The peak population was 199 in the year 2001
From 2000 to 2010, Decatur City's population decreased by 2 (1.01%), as compared to the national growth of 9.63%.
From 2010 to 2020, Decatur City's population decreased by 20 (10.20%), 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 City's population was lowest in year 2020 at 176.