Grinnell

County:: Poweshiek County
County Seat:: No
Area (mi²):: 5.689
State:: Iowa

Grinnell is a city located in Poweshiek County, Iowa. Grinnell has a 2025 population of 9,429. Grinnell is currently declining at a rate of -0.23% annually and its population has decreased by -1.14% since the most recent census, which recorded a population of 9,538 in 2020.

The average household income in Grinnell is $89,907 with a poverty rate of 10.94%.The median age in Grinnell is 37.9 years: 35.3 years for males, and 38.7 years for females.

Demographics

The racial composition of Grinnell includes 87.91% White, 3.94% Asian, and smaller percentages for Black or African American, other race and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	8,375	87.91%
Two or more races	440	4.62%
Asian	375	3.94%
Black or African American	220	2.31%
Other race	117	1.23%

Grinnell Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Grinnell's average per capita income is $49,941. Household income levels show a median of $64,426. The poverty rate stands at 10.94%.

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	$107,098	-
Families	$102,527	$133,515
Households	$64,426	$89,907
Non Families	$34,198	$42,335

$49,941

Average Income

$64,426

Median Household Income

10.94%

Poverty Rate