Greene County's 2026 population is estimated at 8,792, reflecting a 0.74% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Greene County is the 83rd largest county in Iowa. The 2010 population was 9,362 and has grown -6.09% since 2010.
Data after 2023 is projected based on recent change
Overall: 44.6 years
Female: 46.1 years
Male: 43.2 years
There are 6,799 adults, (2,119 of whom are seniors) in Greene County.
Female: 4,275 (49.2%)
Male: 4,413 (50.8%)
The racial composition of Greene County includes 93.65% White, and smaller percentages for Asian, other race, Native American, Black or African American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 8,136 | 93.65% |
| Two or more races | 421 | 4.85% |
| Asian | 55 | 0.63% |
| Other race | 43 | 0.49% |
| Native American | 23 | 0.26% |
| Black or African American | 10 | 0.12% |
Greene County 's average per capita income is $47,527. Household income levels show a median of $63,409. The poverty rate stands at 9.76%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $96,582 | - |
| Families | $86,496 | $102,490 |
| Households | $63,409 | $83,360 |
| Non Families | $41,584 | $51,541 |
Average Income
Median Household Income
Poverty Rate
