St. Marys Flag

St. Marys

County:
Auglaize County
County Seat:
No
Area (mi²):
36.844
State:
Ohio

St. Marys is located in Auglaize County, Ohio. St. Marys has a 2025 population of 10,959. St. Marys is currently declining at a rate of -0.23% annually and its population has decreased by -1.3% since the most recent census, which recorded a population of 11,103 in 2020.

The average household income in St. Marys is $77,075 with a poverty rate of 8.9%.The median age in St. Marys is 40.1 years: 38.7 years for males, and 41.6 years for females.

11K
Total Population
297
Density (mi²)
-25 -0.23%
Growth

St. Marys Population

Demographics

Economics and Income Statistics

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)