Marion township

County:: Linn County
County Seat:: No
Area (mi²):: 73.23
State:: Iowa

Marion township is located in Linn County, Iowa. Marion township has a 2025 population of 44,658. Marion 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 Marion township is $111,534 with a poverty rate of 7.09%. The median age in Marion township is 40.9 years: 40 years for males, and 42.1 years for females.

Demographics

The racial composition of Marion township includes 89.4% White, and smaller percentages for Black or African American, Asian, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Black or African American

Asian

Other race

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	39,926	89.4%
Two or more races	1,993	4.46%
Black or African American	1,144	2.56%
Asian	868	1.94%
Other race	378	0.85%
Native American	322	0.72%
Native Hawaiian or Pacific Islander	27	0.06%

Marion township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Marion township's average per capita income is $56,349. Household income levels show a median of $88,936. The poverty rate stands at 7.09%.

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	$123,838	-
Families	$111,911	$133,175
Households	$88,936	$111,534
Non Families	$48,705	$59,808

$56,349

Average Income

$88,936

Median Household Income

7.09%

Poverty Rate