Henry County's 2026 population is estimated at 18,937, reflecting a -1.11% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Henry County is the 36th largest county in Iowa. The 2010 population was 20,112 and has grown -5.84% since 2010.
Data after 2023 is projected based on recent change
Overall: 41.1 years
Female: 43.4 years
Male: 38.8 years
There are 15,826 adults, (4,031 of whom are seniors) in Henry County.
Female: 9,514 (47.6%)
Male: 10,490 (52.4%)
The racial composition of Henry County includes 88.17% White, and smaller percentages for Black or African American, other race, Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 17,637 | 88.17% |
| Two or more races | 1,160 | 5.8% |
| Black or African American | 510 | 2.55% |
| Other race | 379 | 1.89% |
| Asian | 205 | 1.02% |
| Native American | 106 | 0.53% |
| Native Hawaiian or Pacific Islander | 7 | 0.03% |
Henry County 's average per capita income is $43,657. Household income levels show a median of $67,436. The poverty rate stands at 11.97%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $93,508 | - |
| Families | $82,165 | $98,909 |
| Households | $67,436 | $83,722 |
| Non Families | $40,779 | $53,029 |
Average Income
Median Household Income
Poverty Rate