| Name | Greene County |
| State | Iowa |
| FIPS Code | 19073 |
| County Seat | Jefferson |
| Timezone | Central Daylight Time (CDT) |
| Population (2024) | 8,597 |
| Population Growth Rate(2020-2024) | -1.92% |
| Majority Ethnicity | White 95.67% |
| Public School Majority Ethnicity | White 88% |
| Partisan Voting Index | Republican:+17 |
| Unemployment Rate (May 2026) | 3.5% |
| Sales Tax Rate (2025) | 7% |
| Area Code(s) | 515 / 712 / 641 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 95.67% |
| African American | 0.14% |
| Hispanic | 3.32% |
| Asian | 0.6% |
| Native American | 0.27% |
| Hawaiin/Pacific Islander | 0% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 88.18% |
| African American | 0.62% |
| Hispanic | 7.33% |
| Asian | 0.28% |
| Native American | 0.07% |
| Hawaiin/Pacific Islander | 0.07% |