| Place Name | Olla |
| Place Type | Town |
| ZIP Code(s) | 71465 |
| County | La Salle Parish |
| Area Code(s) | 318 |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 1,546 |
| Population Growth Rate (2010-19) | -6.50% |
| Majority Ethnicity | White 98.07% |
| US Congressional District(s) | Louisiana 5th |
| State House Districts | 22 |
| State Senate Districts | 32 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 98.07% |
| African American | 1.33% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0.6% |