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 and multiracial populations.

Population by Race

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%

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