Demographics in St. Marys, IA

Population, age, race, ethnicity, and household statistics — 2023 ACS Data

Where is St. Marys?

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Population

Source: U.S. Census Bureau ACS (2023)

Total Population

112

Male

63

56.3%

Female

49

43.8%

Median Age

53.5

Race & Ethnicity

Source: U.S. Census Bureau ACS (2023)
White
100.0%

Education & Household

Source: U.S. Census Bureau ACS (2023)

Bachelor's or Higher

19.6%

High School or Higher

62.5%

Foreign Born

1.8%

Veterans

10.7%

Married

58.0%

Avg Household Size

2.2

Marital Status by Age

Source: U.S. Census Bureau ACS (2023)

St. Marys, IA has a population of 112 with a median age of 53.5. The racial makeup is 100.0% White, 0.0% Hispanic, 0.0% Black. About 19.6% of residents hold a bachelor's degree or higher. The foreign-born population is 1.8%.