Demographics in St. Marys, PA

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

12,612

Male

6,014

47.7%

Female

6,598

52.3%

Median Age

50.3

Race & Ethnicity

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

White

94.2%

Black

1.7%

Hispanic

1.6%

Asian

0.3%

Two or More

3.5%

Other

0.3%

Education & Household

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

Bachelor's or Higher

15.6%

High School or Higher

54.1%

Foreign Born

2.2%

Veterans

5.7%

Married

43.1%

Avg Household Size

2.2

Marital Status by Age

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

St. Marys, PA has a population of 12,612 with a median age of 50.3. The racial makeup is 94.2% White, 1.6% Hispanic, 1.7% Black. About 15.6% of residents hold a bachelor's degree or higher. The foreign-born population is 2.2%.