| Place Name | Declo |
| Place Type | City |
| ZIP Code(s) | 83323 |
| County | Cassia County |
| Area Code(s) | 208 |
| Timezone | Mountain Daylight Time (MDT) |
| Population (2022) | 332 |
| Population Growth Rate (2010-19) | -1.46% |
| Majority Ethnicity | White 86.54% |
| Metro/Micro Stats Area | Burley, ID |
| US Congressional District(s) | Idaho 2nd |
| State House Districts | 27 |
| State Senate Districts | 27 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 86.54% |
| African American | 0.7% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 12.76% |