| Place Name | Dennis |
| Place Type | Census Designated Place |
| ZIP Code(s) | 67341 |
| County | Labette County |
| Area Code(s) | 620 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 222 |
| Majority Ethnicity | White 91.91% |
| Metro/Micro Stats Area | Parsons, KS |
| US Congressional District(s) | Kansas 2nd |
| State House Districts | 7 |
| State Senate Districts | 15 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 91.91% |
| African American | 8.09% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |