Johnson township

County:: Plymouth County
County Seat:: No
Area (mi²):: 35.753
State:: Iowa

Johnson township is located in Plymouth County, Iowa. Johnson township has a 2025 population of 123. Johnson 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 Johnson township is $80,288 with a poverty rate of 8.94%. The median age in Johnson township is 36.8 years: 36.8 years for males, and 36.9 years for females.

Demographics

The racial composition of Johnson township includes 73.17% White, 13.01% Asian, and smaller percentages for 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	90	73.17%
Two or more races	17	13.82%
Asian	16	13.01%
Black or African American	0	0%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%
Other race	0	0%

Johnson township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Johnson township's average per capita income is $72,955. Household income levels show a median of $98,750. The poverty rate stands at 8.94%.

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	$121,818	-
Families	$120,455	$106,384
Households	$98,750	$80,288
Non Families	-	$30,104

$72,955

Average Income

$98,750

Median Household Income

8.94%

Poverty Rate