Nassau township

County:: Sioux County
County Seat:: No
Area (mi²):: 36.193
State:: Iowa

Nassau township is located in Sioux County, Iowa. Nassau township has a 2025 population of 2,066. Nassau 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 Nassau township is $116,643 with a poverty rate of 2.81%. The median age in Nassau township is 31.4 years: 32.4 years for males, and 31.2 years for females.

Demographics

The racial composition of Nassau township includes 84.03% White, and smaller percentages for other race, Asian, Black or African American, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Other race

Asian

Black or African American

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	1,736	84.03%
Two or more races	174	8.42%
Other race	55	2.66%
Asian	47	2.27%
Black or African American	38	1.84%
Native American	16	0.77%
Native Hawaiian or Pacific Islander	0	0%

Nassau township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Nassau township's average per capita income is $53,925. Household income levels show a median of $85,227. The poverty rate stands at 2.81%.

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	$129,766	-
Families	$121,625	$143,367
Households	$85,227	$116,643
Non Families	$52,981	$60,142

$53,925

Average Income

$85,227

Median Household Income

2.81%

Poverty Rate