Casselberry is a medium-sized city located in the state of Florida. With a population of 29,901 people and ten associated neighborhoods, Casselberry is the 111th largest community in Florida.

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

Telecommuters are a relatively large percentage of the workforce: 11.88% of people work from home. While this number may seem small overall, as a fraction of the total workforce it is high relative to the nation. 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 overall education level of Casselberry citizens is substantially higher than the typical US community, as 32.97% of adults in Casselberry have at least a bachelor's degree, and the average American community has 21.84%.

The per capita income in Casselberry in 2022 was $31,064, which is lower middle income relative to Florida, and middle income relative to the rest of the US. This equates to an annual income of $124,256 for a family of four. However, Casselberry contains both very wealthy and poor people as well.

Casselberry is an extremely ethnically-diverse city. The people who call Casselberry home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Casselberry residents report their race to be White, followed by Black or African-American. Casselberry also has a sizeable Hispanic population (people of Hispanic origin can be of any race). People of Hispanic or Latino origin account for 32.39% of the city’s residents. Important ancestries of people in Casselberry include German, Irish, English, Italian, and Haitian.

Foreign born people are also an important part of Casselberry's cultural character, accounting for 20.61% of the city’s population.

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