Grinnell Flag

Grinnell

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

Grinnell is a city located in Poweshiek County, Iowa. Grinnell has a 2026 population of 9,474. Grinnell is currently declining at a rate of -0.11% annually and its population has decreased by -0.66% since the most recent census, which recorded a population of 9,537 in 2020.

The median household income in Grinnell is $65,320 with a poverty rate of 11.13%. The median age in Grinnell is 36.5 years: 33.7 years for males, and 37 years for females. For every 100 females there are 88.5 males.

9.5K
Total Population
1,665
Density (mi²)
-10 -0.11%
Growth

Grinnell Population

Grinnell Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20269,474-10-0.11%
20259,484-11-0.12%
20249,49520.02%
20239,493-29-0.3%
20229,522-34-0.36%
20219,55640.04%
20209,5374054.43%
20199,132160.18%
20189,116780.86%
20179,038670.75%
20168,971-58-0.64%
20159,029-42-0.46%
20149,071150.17%
20139,056-53-0.58%
20129,109-94-1.02%
20119,203-18-0.2%
20109,22130.03%
20009,1052032.28%
19908,902340.38%
19808,8684665.55%
19708,4021,03514.05%
19607,3675397.89%
19506,8281,61831.06%
19405,2102615.27%
19304,949-413-7.7%
19205,3623266.47%
19105,0361,17630.47%
19003,86052815.85%
18903,33200%

Median Age

Overall: 36.5 years
Female: 37 years
Male: 33.7 years

Grinnell Adults

There are 7,734 adults, (2,034 of whom are seniors) in Grinnell.

Sex Ratio

Female: 5,043 (53.1%)
Male: 4,462 (46.9%)

Demographics

The racial composition of Grinnell includes 86.95% White, 3.91% Asian, and smaller percentages for Black or African American, other race and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White8,26586.95%
Two or more races6116.43%
Asian3723.91%
Black or African American1661.75%
Other race910.96%
Race
Population ↓
Percentage (of total)
Two or more races1231.29%
White790.83%
Other race770.81%
Black or African American180.19%
Race
Population ↓
Percentage (of total)
White8,18686.12%
Two or more races4885.13%
Asian3723.91%
Black or African American1481.56%
Other race140.15%

Grinnell Marital Status

Economics and Income Statistics

Grinnell 's average per capita income is $47,682. Household income levels show a median of $65,320. The poverty rate stands at 11.13%.

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$117,833-
Families$105,322$131,129
Households$65,320$92,817
Non Families$35,455$43,689

$47,682

Average Income

$65,320

Median Household Income

11.13%

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)