St. Clair, MO Population

Overview

4,770

Total Population

38.9

Median age

48.87%

Female population %

104.6:100

Gender ratio (M:F)

5-9 years

Largest age group

57.7

Total dependency ratio

White

Largest racial group

23

Hispanic population

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

TABLE OF CONTENTS

Age

St. Clair's population is old compared to the rest of the country:

The median age in St. Clair is 38.9, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
St. Clair's population under 18 was 22.43%, compared to the 22.51% nationwide.
St. Clair's elderly or the senior population (over 65 age) was 16.27% as compared to 16.04% nationwide.
Of the total population in St. Clair, 20.31% were under the age of 15, 15.70% aged 15 to 29, 47.71% aged 30 to 64, 12.83% aged 65 to 84, and 3.44% were 85 years of age and older.

There are 108 less females than males in St. Clair:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 48.87% females and 51.13% males in St. Clair, MO.
The St. Clair, MO gender ratio is 104.6:100 i.e. 104.6 men to 100 women (1.046).
For male population, the largest age group is 5-9 years with a population of 330.
For the female population, the largest age group is 55-59 years with a population of 359.

St. Clair's population has become increasingly diverse:

Racial distribution of St. Clair population: 94.59% are White, 0.86% are Black or African American, 1.76% are American Indian and Alaska Native, 0.40% are Asian and 2.39% are multiracial.
St. Clair's racial breakdown clearly shows that there is an absolute majority of White population in the city.
By ethnicity, 23 is Hispanic or Latino (of any race), and 4,747 (99.52% of the total population) is Non-Hispanic.
The largest racial group in St. Clair is White with a population of 4,512 (94.59% of the total population).

St. Clair's population has already reached its peak and is showing a trend of decline:

The peak population was 4,794 in the year 2020
From 2000 to 2010, St. Clair's population increased by 234 (5.21%), as compared to the national growth of 9.63%.
From 2010 to 2020, St. Clair's population increased by 70 (1.48%), 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, St. Clair's population was lowest in year 2006 at 4,462.