
Derby
- County:
- Sedgwick County
- County Seat:
- No
- Area (mi²):
- 10.412
- State:
- Kansas
Derby is a city located in Sedgwick County, Kansas. Derby has a 2025 population of 26,580. Derby is currently growing at a rate of 0.66% annually and its population has increased by 3.38% since the most recent census, which recorded a population of 25,712 in 2020.
The average household income in Derby is $96,696 with a poverty rate of 6.2%. The median age in Derby is 35.2 years: 33.9 years for males, and 36.3 years for females.