Derby is a city located in Sedgwick County Kansas. With a 2020 population of 25,413, it is the 16th largest city in Kansas and the 1520th largest city in the United States . Derby is currently growing at a rate of 0.93% annually and its population has increased by 14.69% since the most recent census, which recorded a population of 22,158 in 2010. Derby reached it's highest population of 25,413 in 2021. Spanning over 10 miles, Derby has a population density of 2,477 people per square mile.
The average household income in Derby is $89,860 with a poverty rate of 5.13%. The median rental costs in recent years comes to $951 per month, and the median house value is $165,200. The median age in Derby is 35.5 years, 35.3 years for males, and 35.7 years for females.