Sumner township

County:: Bremer County
County Seat:: No
Area (mi²):: 3.748
State:: Iowa

Sumner township is located in Bremer County, Iowa. Sumner township has a 2025 population of 350. 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 $99,410 with a poverty rate of 16%.The median age in Sumner township is 42.2 years: 42.9 years for males, and 35.4 years for females.

Demographics

The racial composition of Sumner township includes 99.43% White, and smaller percentages for Native American, Two or more races and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	348	99.43%
Native American	1	0.29%
Two or more races	1	0.29%

Sumner township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Sumner township's average per capita income is $57,600. Household income levels show a median of $59,779. The poverty rate stands at 16%.

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	$108,281	-
Families	$101,250	$153,830
Households	$59,779	$99,410
Non Families	-	$43,895

$57,600

Average Income

$59,779

Median Household Income

16%

Poverty Rate