Clayton County's estimated 2026 population is 16,707 with a growth rate of -0.82% in the past year according to the most recent United States census data. Clayton County is the 43rd largest county in Iowa. The 2010 population was 18,080 and has seen a growth of -7.59% since that time.
Data after 2023 is projected based on recent change
Overall: 46.4 years
Female: 46.5 years
Male: 46.1 years
There are 13,333 adults, (4,260 of whom are seniors) in Clayton County.
Female: 8,451 (49.7%)
Male: 8,562 (50.3%)
The racial composition of Clayton County includes 94.98% White, and smaller percentages for Black or African American, other race, Asian, Native American and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 16,159 | 94.98% |
| Two or more races | 581 | 3.42% |
| Black or African American | 112 | 0.66% |
| Other race | 95 | 0.56% |
| Asian | 56 | 0.33% |
| Native American | 10 | 0.06% |
Clayton County's average per capita income is $48,625. Household income levels show a median of $67,242. The poverty rate stands at 10.91%.
Name | Median | Mean |
|---|---|---|
| Married Families | $96,890 | - |
| Families | $82,522 | $102,405 |
| Households | $67,242 | $86,441 |
| Non Families | $42,610 | $57,378 |
Average Income
Median Household Income
Poverty Rate
