| Place Name | Thornton |
| Place Type | City |
| ZIP Code(s) | 50479 |
| County | Cerro Gordo County |
| Area Code(s) | 641 |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 455 |
| Population Growth Rate (2010-19) | -5.21% |
| Majority Ethnicity | White 92.12% |
| Metro/Micro Stats Area | Mason City, IA |
| US Congressional District(s) | Iowa 4th |
| State House Districts | 54 |
| State Senate Districts | 27 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 92.12% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0.45% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 7.43% |