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, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Asian

Black or African American

Other race

Native American

Native Hawaiian or Pacific Islander

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%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%

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