Sumner township

County:: Bremer County
County Seat:: No
Area (mi²):: 36.412
State:: Iowa

Sumner township is located in Bremer County, Iowa. Sumner township has a 2025 population of 442. Sumner 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 Sumner township is $100,689 with a poverty rate of 3.17%.The median age in Sumner township is 47.5 years: 44.7 years for males, and 48.6 years for females.

Demographics

The racial composition of Sumner township includes 97.74% White, and smaller percentages for Two or more races and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	432	97.74%
Two or more races	10	2.26%

Sumner township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Sumner township's average per capita income is $46,642. Household income levels show a median of $87,574. The poverty rate stands at 3.17%.

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	$89,485	-
Families	$89,301	$114,693
Households	$87,574	$100,689
Non Families	$68,080	$64,371

$46,642

Average Income

$87,574

Median Household Income

3.17%

Poverty Rate