Grinnell Flag

Grinnell

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

Grinnell is a city located in Poweshiek County, Iowa. Grinnell has a 2025 population of 9,484 . Grinnell is currently declining at a rate of -0.12% annually and its population has decreased by -0.56% since the most recent census, which recorded a population of 9,537 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. For every 100 females there are 87.5 males.

9.5K
Total Population
1,667
Density (mi²)
-11 -0.12%
Growth

Grinnell Population

Grinnell Population

Data after 2023 is projected based on recent change

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

White (87.91%)

Two or more races (4.62%)

Asian (3.94%)

Black or African American (2.31%)

Other race (1.23%)

Race
Population
Percentage (of total)
White8,37587.91%
Two or more races4404.62%
Asian3753.94%
Black or African American2202.31%
Other race1171.23%

Grinnell Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

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

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)