| Name | Cass County |
| State | Iowa |
| FIPS Code | 19029 |
| County Seat | Atlantic |
| Timezone | Central Daylight Time (CDT) |
| Population (2024) | 13,131 |
| Population Growth Rate(2020-2024) | 0.04% |
| Majority Ethnicity | White 95.77% |
| Public School Majority Ethnicity | White 87% |
| Partisan Voting Index | Strongly Republican:+21 |
| Unemployment Rate (May 2026) | 3.4% |
| Sales Tax Rate (2025) | 7% |
| Area Code(s) | 712 / 641 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 95.77% |
| African American | 0.85% |
| Hispanic | 2.59% |
| Asian | 0.34% |
| Native American | 0.11% |
| Hawaiin/Pacific Islander | 0.33% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 86.99% |
| African American | 1.49% |
| Hispanic | 5.98% |
| Asian | 0.64% |
| Native American | 0.38% |
| Hawaiin/Pacific Islander | 2.39% |