Derby is a somewhat small city located in the state of Connecticut. With a population of 12,358 people and two associated neighborhoods, Derby is the 86th largest community in Connecticut.

Also of interest is that Derby has more people living here who work in computers and math than 95% of the places in the US.

A relatively large number of people in Derby telecommute to their jobs. Overall, about 12.65% 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 substantially higher than the typical US community, as 29.39% of adults in Derby have at least a bachelor's degree.

The per capita income in Derby in 2022 was $40,298, which is low income relative to Connecticut, and upper middle income relative to the rest of the US. This equates to an annual income of $161,192 for a family of four. However, Derby contains both very wealthy and poor people as well.

Derby is an extremely 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 23.05% of the city’s residents. Important ancestries of people in Derby include Italian, Irish, Polish, English, and German.

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