Grimes is a city located in Polk County, Iowa. Grimes has a 2025 population of 17,653 . Grimes is currently growing at a rate of 2.24% annually and its population has increased by 12.31% since the most recent census, which recorded a population of 15,718 in 2020.
The average household income in Grimes is $114,884 with a poverty rate of 6.83%. The median age in Grimes is 34.3 years: 30.7 years for males, and 39.2 years for females. For every 100 females there are 106.9 males.
Data after 2023 is projected based on recent change
The racial composition of Grimes includes 87.88% White, 3.56% Asian, and smaller percentages for Black or African American, other race and multiracial populations.
White (87.88%)
Two or more races (5.19%)
Asian (3.56%)
Black or African American (2.33%)
Other race (1.04%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 13,894 | 87.88% |
| Two or more races | 821 | 5.19% |
| Asian | 563 | 3.56% |
| Black or African American | 368 | 2.33% |
| Other race | 164 | 1.04% |
Married
Widowed
Divorced
Separated
Never Married
Grimes' average per capita income is $64,151. Household income levels show a median of $104,497. The poverty rate stands at 6.83%.
Name | Median | Mean |
|---|---|---|
| Married Families | $136,109 | - |
| Families | $125,929 | $134,687 |
| Households | $104,497 | $114,884 |
| Non Families | $62,915 | $80,448 |
Average Income
Median Household Income
Poverty Rate