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 and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	1,018	98.74%
Other race	8	0.78%
Two or more races	5	0.48%

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