Carroll County's estimated 2026 population is 20,160 with a growth rate of -0.7% in the past year according to the most recent United States census data. Carroll County is the 32nd largest county in Iowa. The 2010 population was 20,823 and has seen a growth of -3.18% since that time.
Data after 2023 is projected based on recent change
Overall: 41.1 years
Female: 43.2 years
Male: 39.3 years
There are 15,574 adults, (4,361 of whom are seniors) in Carroll County.
Female: 10,295 (50%)
Male: 10,299 (50%)
The racial composition of Carroll County includes 92.91% White, and smaller percentages for other race, Black or African American, Asian, Native American and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 19,134 | 92.91% |
| Two or more races | 1,069 | 5.19% |
| Other race | 191 | 0.93% |
| Black or African American | 139 | 0.67% |
| Asian | 39 | 0.19% |
| Native American | 22 | 0.11% |
Carroll County's average per capita income is $50,792. Household income levels show a median of $72,930. The poverty rate stands at 7.93%.
Name | Median | Mean |
|---|---|---|
| Married Families | $109,426 | - |
| Families | $98,539 | $114,824 |
| Households | $72,930 | $93,964 |
| Non Families | $44,517 | $59,162 |
Average Income
Median Household Income
Poverty Rate
