Demographics in St. Marys, KS
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
2,795
Male
1,433
51.3%
Female
1,362
48.7%
Median Age
25.8
Race & Ethnicity
Source: U.S. Census Bureau ACS (2023)White88.5%
Black0.7%
Hispanic8.2%
Asian1.0%
Two or More6.8%
Other2.7%
Education & Household
Source: U.S. Census Bureau ACS (2023)Bachelor's or Higher
11.3%
High School or Higher
28.7%
Foreign Born
2.1%
Veterans
7.0%
Married
37.9%
Avg Household Size
3.3
Marital Status by Age
Source: U.S. Census Bureau ACS (2023)St. Marys, KS has a population of 2,795 with a median age of 25.8. The racial makeup is 88.5% White, 8.2% Hispanic, 0.7% Black, 1.0% Asian. About 11.3% of residents hold a bachelor's degree or higher. The foreign-born population is 2.1%.