Sumner township

County:: Bremer County
County Seat:: No
Area (mi²):: 34.057
State:: Iowa

Sumner township is located in Bremer County, Iowa. Sumner township has a 2025 population of 3,389. 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 $91,613 with a poverty rate of 3.72%. The median age in Sumner township is 38.3 years: 35.9 years for males, and 41.5 years for females.

Demographics

The racial composition of Sumner township includes 93.66% White, 3.04% Black or African American, and smaller percentages for Two or more races, Asian, Native American, Native Hawaiian or Pacific Islander, other race and multiracial populations.

Population by Race

White

Black or African American

Two or more races

Asian

Native American

Native Hawaiian or Pacific Islander

Other race

Race	Population	Percentage (of total)
White	3,174	93.66%
Black or African American	103	3.04%
Two or more races	76	2.24%
Asian	34	1%
Native American	2	0.06%
Native Hawaiian or Pacific Islander	0	0%
Other race	0	0%

Sumner township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Sumner township's average per capita income is $44,739. Household income levels show a median of $82,698. The poverty rate stands at 3.72%.

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	$92,135	-
Families	$91,927	$103,480
Households	$82,698	$91,613
Non Families	$43,929	$67,871

$44,739

Average Income

$82,698

Median Household Income

3.72%

Poverty Rate