St. Marys township

County:: Warren County
County Seat:: No
Area (mi²):: 14.625
State:: Iowa

St. Marys township is located in Warren County, Iowa. St. Marys township has a 2025 population of 131. St. Marys township is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.

The average household income in St. Marys township is $40,397 with a poverty rate of 4.58%. The median age in St. Marys township is 56.4 years: 56.2 years for males, and 69.4 years for females.

Demographics

The racial composition of St. Marys township includes 87.02% White, and smaller percentages for Black or African American, Native American, Asian, Native Hawaiian or Pacific Islander, other race and multiracial populations.

Population by Race

White

Two or more races

Black or African American

Native American

Asian

Native Hawaiian or Pacific Islander

Other race

Race	Population	Percentage (of total)
White	114	87.02%
Two or more races	17	12.98%
Black or African American	0	0%
Native American	0	0%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%
Other race	0	0%

St. Marys township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

St. Marys township's average per capita income is $0. Household income levels show a median of $37,833. The poverty rate stands at 4.58%.

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
Families	$46,406	$52,591
Households	$37,833	$40,397
Non Families	$34,554	$32,383
Married Families	-	-

$0

Average Income

$37,833

Median Household Income

4.58%

Poverty Rate