Demographics in St. Mary, MO
Population, age, race, ethnicity, and household statistics — 2023 ACS Data
Where is St. Mary?
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Population
Source: U.S. Census Bureau ACS (2023)Total Population
255
Male
119
46.7%
Female
136
53.3%
Median Age
52.2
Race & Ethnicity
Source: U.S. Census Bureau ACS (2023)White81.2%
Black8.6%
Hispanic0.8%
Two or More10.2%
Education & Household
Source: U.S. Census Bureau ACS (2023)Bachelor's or Higher
7.8%
High School or Higher
36.1%
Foreign Born
0.0%
Veterans
9.8%
Married
31.4%
Avg Household Size
2.6
Marital Status by Age
Source: U.S. Census Bureau ACS (2023)St. Mary, MO has a population of 255 with a median age of 52.2. The racial makeup is 81.2% White, 0.8% Hispanic, 8.6% Black. About 7.8% of residents hold a bachelor's degree or higher. The foreign-born population is 0.0%.