| Place Name | Atascadero |
| Place Type | City |
| ZIP Code(s) | 93422 |
| County | San Luis Obispo County |
| Area Code(s) | 805,820 |
| Timezone | Pacific Standard Time (PST) |
| Population (2022) | 28,441 |
| Population Growth Rate (2010-19) | 5.17% |
| Majority Ethnicity | White 79.48% |
| Metro/Micro Stats Area | San Luis Obispo-Paso Robles, CA |
| US Congressional District(s) | California 24th |
| State Assembly Districts | 35 |
| State Senate Districts | 17 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 79.48% |
| African American | 0.91% |
| Hispanic | 0.9% |
| Asian | 1.57% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 17.14% |