Big Grove township

County:: Johnson County
County Seat:: No
Area (mi²):: 30.737
State:: Iowa

Big Grove township is located in Johnson County, Iowa. Big Grove township has a 2025 population of 4,890. Big Grove 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 Big Grove township is $133,271 with a poverty rate of 1.11%. The median age in Big Grove township is 44.8 years: 45.3 years for males, and 44.5 years for females.

Demographics

The racial composition of Big Grove township includes 96.07% 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	4,698	96.07%
Two or more races	147	3.01%
Other race	24	0.49%
Asian	13	0.27%
Black or African American	8	0.16%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%

Big Grove township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Big Grove township's average per capita income is $60,942. Household income levels show a median of $117,622. The poverty rate stands at 1.11%.

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	$147,016	-
Families	$134,006	$148,341
Households	$117,622	$133,271
Non Families	$79,479	$83,227

$60,942

Average Income

$117,622

Median Household Income

1.11%

Poverty Rate