| Name | Montgomery County |
| State | Iowa |
| FIPS Code | 19137 |
| County Seat | Red Oak |
| Timezone | Central Daylight Time (CDT) |
| Population (2024) | 10,148 |
| Population Growth Rate(2020-2024) | -1.75% |
| Majority Ethnicity | White 96.19% |
| Public School Majority Ethnicity | White 90% |
| Partisan Voting Index | Strongly Republican:+21 |
| Unemployment Rate (May 2026) | 3.1% |
| Sales Tax Rate (2025) | 7% |
| Area Code(s) | 712 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 96.19% |
| African American | 0.59% |
| Hispanic | 1.78% |
| Asian | 0.57% |
| Native American | 0.32% |
| Hawaiin/Pacific Islander | 0.54% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 89.92% |
| African American | 0.25% |
| Hispanic | 6.55% |
| Asian | 0.13% |
| Native American | 0.06% |
| Hawaiin/Pacific Islander | 0% |