Story County's 2026 population is estimated at 101,164, reflecting a -0.13% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Story County is the 8th largest county in Iowa. The 2010 population was 89,661 and has grown 12.83% since 2010.
Overall: 26.9 years
Female: 28 years
Male: 26.2 years
There are 84,190 adults, (13,275 of whom are seniors) in Story County.
Female: 47,879 (47.7%)
Male: 52,587 (52.3%)
The racial composition of Story County includes 82.45% White, 6.61% Asian, and smaller percentages for Black or African American, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 82,831 | 82.45% |
| Asian | 6,641 | 6.61% |
| Two or more races | 5,804 | 5.78% |
| Black or African American | 2,796 | 2.78% |
| Other race | 1,819 | 1.81% |
| Native American | 465 | 0.46% |
| Native Hawaiian or Pacific Islander | 110 | 0.11% |
Story County 's average per capita income is $52,884. Household income levels show a median of $69,685. The poverty rate stands at 18.24%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $130,013 | $156,383 |
| Families | $119,541 | $141,307 |
| Households | $69,685 | $96,851 |
| Non Families | $44,616 | $54,769 |
Average Income
Median Household Income
Poverty Rate
