Eureka township

County:: Sac County
County Seat:: No
Area (mi²):: 36.07
State:: Iowa

Eureka township is located in Sac County, Iowa. Eureka township has a 2025 population of 892. Eureka 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 Eureka township is $85,309 with a poverty rate of 11.66%. The median age in Eureka township is 39 years: 40.6 years for males, and 34.7 years for females.

Demographics

The racial composition of Eureka township includes 79.48% White, 10.65% other race, 4.93% Native Hawaiian or Pacific Islander, and smaller percentages for Asian, Black or African American, Native American and multiracial populations.

Population by Race

White

Other race

Native Hawaiian or Pacific Islander

Two or more races

Asian

Black or African American

Native American

Race	Population	Percentage (of total)
White	709	79.48%
Other race	95	10.65%
Native Hawaiian or Pacific Islander	44	4.93%
Two or more races	38	4.26%
Asian	6	0.67%
Black or African American	0	0%
Native American	0	0%

Eureka township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Eureka township's average per capita income is $46,583. Household income levels show a median of $67,273. The poverty rate stands at 11.66%.

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	$91,250	-
Families	$71,379	$98,332
Households	$67,273	$85,309
Non Families	$37,500	$50,919

$46,583

Average Income

$67,273

Median Household Income

11.66%

Poverty Rate