| Place Name | Seffner |
| Place Type | Census Designated Place |
| ZIP Code(s) | 33584 |
| County | Hillsborough County |
| Area Code(s) | 813 |
| Timezone | Eastern Standard Time (EST) |
| Population (2022) | 8,188 |
| Population Growth Rate (2010-19) | 10.33% |
| Majority Ethnicity | White 61.45% |
| Metro/Micro Stats Area | Tampa-St. Petersburg-Clearwater, FL |
| US Congressional District(s) | Florida 15th |
| State House Districts | 58 |
| State Senate Districts | 19,2 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 61.45% |
| African American | 15.09% |
| Hispanic | 0.2% |
| Asian | 0.39% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 22.87% |