| Dennis, Kansas | |
| Settlement Type: | CDP |
| Image Map1: | Map of Labette Co, Ks, USA.png |
| Map Caption1: | KDOT map of Labette County (legend) |
| Pushpin Map: | Kansas#USA |
| Pushpin Label: | Dennis |
| Pushpin Label Position: | left |
| Coordinates: | 37.3469°N -95.4128°W |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Kansas |
| Subdivision Type2: | County |
| Subdivision Name2: | Labette |
| Subdivision Type3: | Township |
| Established Title: | Founded |
| Established Date: | 1880s |
| Established Title1: | Platted |
| Unit Pref: | Imperial |
| Elevation Ft: | 929 |
| Population As Of: | 2020 |
| Population Total: | 152 |
| Population Density Sq Mi: | auto |
| Population Density Km2: | auto |
| Timezone: | CST |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Postal Code Type: | ZIP code |
| Area Code Type: | Area code |
| Area Code: | 620 |
| Blank Name: | FIPS code |
| Blank Info: | 20-17675 |
| Blank1 Name: | GNIS ID |
| Blank1 Info: | 2804492 |
Dennis is a census-designated place (CDP) in Labette County, Kansas, United States. As of the 2020 census, the population was 152.[1]
Dennis had its start in the early 1880s by the building of the Memphis, Kansas and Colorado Railroad through that territory.[2] The first post office in Dennis was established in May 1881.[3]
The nearby Big Hill Archeological District is on the National Register of Historic Places.
The community is served by Labette County USD 506 public school district.