St. Marys

County:: Elk County
County Seat:: No
Area (mi²):: 99.316
State:: Pennsylvania

St. Marys is a city located in Elk County, Pennsylvania. St. Marys has a 2025 population of 12,183. St. Marys is currently declining at a rate of -0.88% annually and its population has decreased by -4.24% since the most recent census, which recorded a population of 12,722 in 2020.

The average household income in St. Marys is $80,127 with a poverty rate of 8.43%. The median age in St. Marys is 50.3 years: 51.2 years for males, and 49.8 years for females.

Demographics

The racial composition of St. Marys includes 94.18% White, and smaller percentages for Black or African American, other race, Asian, Native Hawaiian or Pacific Islander, Native American and multiracial populations.

Population by Race

White

Two or more races

Black or African American

Other race

Asian

Native Hawaiian or Pacific Islander

Native American

Race	Population	Percentage (of total)
White	11,878	94.18%
Two or more races	435	3.45%
Black or African American	218	1.73%
Other race	36	0.29%
Asian	35	0.28%
Native Hawaiian or Pacific Islander	10	0.08%
Native American	0	0%

St. Marys Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

St. Marys' average per capita income is $41,787. Household income levels show a median of $64,471. The poverty rate stands at 8.43%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Married Families	$92,192	-
Families	$85,034	$103,673
Households	$64,471	$80,127
Non Families	$32,264	$42,750

$41,787

Average Income

$64,471

Median Household Income

8.43%

Poverty Rate