Cuba
- County:
- Republic County
- County Seat:
- No
- Area (mi²):
- 0.288
- State:
- Kansas
Cuba is a city located in Republic County, Kansas. Cuba has a 2026 population of 137. Cuba is currently growing at a rate of 0.74% annually but its population has decreased by -1.44% since the most recent census, which recorded a population of 139 in 2020.