St. Marys Flag

St. Marys

County:
Auglaize County
County Seat:
No
Area (mi²):
4.668
State:
Ohio

St. Marys is a city located in Auglaize County, Ohio. St. Marys has a 2025 population of 8,358. St. Marys is currently declining at a rate of -0.11% annually and its population has decreased by -0.56% since the most recent census, which recorded a population of 8,405 in 2020.

The average household income in St. Marys is $76,379 with a poverty rate of 9.69%.The median age in St. Marys is 36.2 years: 36.4 years for males, and 35.8 years for females.

8.4K
Total Population
1,791
Density (mi²)
-9 -0.11%
Growth

St. Marys Population

St. Marys Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of St. Marys includes 94.92% White, and smaller percentages for Black or African American, Asian, other race and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White7,89694.92%
Two or more races2573.09%
Black or African American1171.41%
Asian430.52%
Other race60.07%

St. Marys Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

St. Marys' average per capita income is $46,661. Household income levels show a median of $72,056. The poverty rate stands at 9.69%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Married Families$89,974-
Families$86,568$91,567
Households$72,056$76,379
Non Families$43,885$47,464

$46,661

Average Income

$72,056

Median Household Income

9.69%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)