Derby is a medium-sized city located in the state of Kansas. With a population of 26,604 people and six associated neighborhoods, Derby is the 16th largest community in Kansas.

Derby real estate is some of the most expensive in Kansas, although Derby house values don't compare to the most expensive real estate in the U.S.

Derby is home to a number of people employed in the armed forces. When you visit or walk around Derby, some of the people you will bump into will be military people In and out of uniform, jogging, shopping and generally out and about town.

A relatively large number of people in Derby telecommute to their jobs. Overall, about 7.61% of the workforce works from home. While this may seem like a small number, as a fraction of the total workforce it ranks among the highest in the country. These workers are often telecommuters who work in knowledge-based, white-collar professions. For example, Silicon Valley has large numbers of people who telecommute. Other at-home workers may be self-employed people who operate small businesses out of their homes.

The education level of Derby citizens is very high relative to the national average among all cities (21.84%): 37.64% of adults in Derby have a bachelor's degree or even advanced degree.

The per capita income in Derby in 2022 was $40,661, which is wealthy relative to Kansas, and upper middle income relative to the rest of the US. This equates to an annual income of $162,644 for a family of four. However, Derby contains both very wealthy and poor people as well.

Derby is a very ethnically-diverse city. The people who call Derby home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Derby residents report their race to be White, followed by Black or African-American. Derby also has a sizeable Hispanic population (people of Hispanic origin can be of any race). People of Hispanic or Latino origin account for 12.87% of the city’s residents. Important ancestries of people in Derby include German, English, Irish, European, and Italian.

The most common language spoken in Derby is English. Other important languages spoken here include Spanish and German/Yiddish.