St. Marys

County:: Pottawatomie County
County Seat:: No
Area (mi²):: 1.178
State:: Kansas

St. Marys is a city located in Pottawatomie County, Kansas. St. Marys has a 2025 population of 2,747. St. Marys is currently declining at a rate of 0% annually and its population has decreased by -0.07% since the most recent census, which recorded a population of 2,749 in 2020.

The average household income in St. Marys is $86,152 with a poverty rate of 7.89%. The median age in St. Marys is 25.8 years: 25.9 years for males, and 25.6 years for females.

Demographics

The racial composition of St. Marys includes 88.55% White, and smaller percentages for other race, Asian, Black or African American, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Other race

Asian

Black or African American

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	2,475	88.55%
Two or more races	190	6.8%
Other race	76	2.72%
Asian	27	0.97%
Black or African American	20	0.72%
Native American	7	0.25%
Native Hawaiian or Pacific Islander	0	0%

St. Marys Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

St. Marys' average per capita income is $45,114. Household income levels show a median of $71,723. The poverty rate stands at 7.89%.

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	$83,661	-
Families	$81,750	$98,029
Households	$71,723	$86,152
Non Families	$37,813	$44,946

$45,114

Average Income

$71,723

Median Household Income

7.89%

Poverty Rate