St. Marys, OH Population

Overview

8,311

Total Population

38.5

Median age

54.45%

Female population %

83.7:100

Gender ratio (M:F)

20-24 years

Largest age group

55.3

Total dependency ratio

White

Largest racial group

159

Hispanic population

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

TABLE OF CONTENTS

Age

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

The median age in St. Marys is 38.5, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
St. Marys's population under 18 was 23.62%, compared to the 22.51% nationwide.
St. Marys's elderly or the senior population (over 65 age) was 15.83% as compared to 16.04% nationwide.
Of the total population in St. Marys, 19.76% were under the age of 15, 20.70% aged 15 to 29, 43.71% aged 30 to 64, 13.92% aged 65 to 84, and 1.91% were 85 years of age and older.

There are 739 more females than males in St. Marys:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 54.45% females and 45.55% males in St. Marys, OH.
The St. Marys, OH gender ratio is 83.7:100 i.e. 83.7 men to 100 women (0.837).
For male population, the largest age group is 25-29 years with a population of 306.
For the female population, the largest age group is 20-24 years with a population of 534.

St. Marys's population has become increasingly diverse:

Racial distribution of St. Marys population: 95.24% are White, 0.39% are Black or African American, 0.48% are Asian, 0.22% are some other race and 3.68% are multiracial.
St. Marys's racial breakdown clearly shows that there is an absolute majority of White population in the city.
By ethnicity, 159 is Hispanic or Latino (of any race), and 8,152 (98.09% of the total population) is Non-Hispanic.
The largest racial group in St. Marys is White with a population of 7,915 (95.24% of the total population).

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

The peak population was 8,425 in the year 2021
From 2000 to 2010, St. Marys's population increased by 2 (0.02%), as compared to the national growth of 9.63%.
From 2010 to 2020, St. Marys's population increased by 93 (1.12%), 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. Marys's population was lowest in year 2007 at 8,132.