Columbia township

County:: Marion County
County Seat:: No
Area (mi²):: 30.223
State:: Iowa

Columbia township is located in Marion County, Iowa. Columbia township has a 2025 population of 1,031. Columbia 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 Columbia township is $176,329 with a poverty rate of 18.5%. The median age in Columbia township is 32.9 years: 42 years for males, and 30.8 years for females.

Demographics

The racial composition of Columbia township includes 98.74% White, and smaller percentages for other race, Two or more races, Black or African American, Native American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Other race

Two or more races

Black or African American

Native American

Asian

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	1,018	98.74%
Other race	8	0.78%
Two or more races	5	0.48%
Black or African American	0	0%
Native American	0	0%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%

Columbia township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Columbia township's average per capita income is $41,202. Household income levels show a median of $69,901. The poverty rate stands at 18.5%.

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	$95,500	-
Families	$85,850	$220,168
Households	$69,901	$176,329
Non Families	$51,250	$55,249

$41,202

Average Income

$69,901

Median Household Income

18.5%

Poverty Rate