Black Oak township

County:: Mahaska County
County Seat:: No
Area (mi²):: 32.837
State:: Iowa

Black Oak township is located in Mahaska County, Iowa. Black Oak township has a 2025 population of 583. Black Oak 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 Black Oak township is $111,108 with a poverty rate of 0.17%. The median age in Black Oak township is 48.1 years: 46.2 years for males, and 52.1 years for females.

Demographics

The racial composition of Black Oak township includes 98.97% White, and smaller percentages for Two or more races, Asian, Black or African American, Native American, Native Hawaiian or Pacific Islander, other race and multiracial populations.

Population by Race

White

Two or more races

Asian

Black or African American

Native American

Native Hawaiian or Pacific Islander

Other race

Race	Population	Percentage (of total)
White	577	98.97%
Two or more races	4	0.69%
Asian	2	0.34%
Black or African American	0	0%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%
Other race	0	0%

Black Oak township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Black Oak township's average per capita income is $41,071. Household income levels show a median of $82,353. The poverty rate stands at 0.17%.

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	$93,438	-
Families	$92,734	$133,942
Households	$82,353	$111,108
Non Families	$36,141	$44,513

$41,071

Average Income

$82,353

Median Household Income

0.17%

Poverty Rate