[2][3] Created in 1917 from portions of Saint Johns and Volusia Counties, it was named for Henry Flagler, who built the Florida East Coast Railway.

[4] The 2020 United States census counted 115,378 people, 48,450 households, and 34,022 families in Flagler County, Florida.

[15] The 2016-2020 5-year American Community Survey estimates show that the median household income was $57,536 (with a margin of error of +/- $2,337).

The County Commission has the following members:[28] Commissioners O'Brien and Sullivan are set to leave office following the 2024 general election, having both opted not to seek another term.

[30] The county is also served by the Flagler School Board, who are elected in non-partisan races to four-year terms in office.

[33] Conklin and Massaro are leaving office in 2024, having both opted not to seek additional terms.

[34] The District 1 seat will remain vacant until an appointment is made by the Governor of Florida.

The county is also served by five elected constitutional officers: Sheriff Rick Staly, Property Appraiser Jay Gardner, Clerk of Courts Tom Bexley, Tax Collector Suzanne Johnston, and Elections Supervisor Kaiti Lenhart.

[35] According to the Secretary of State's office, Republicans are a plurality of registered voters in Flagler County.

Flagler County Public Schools enroll approximately 13,000 students.

Flagler County schools are: In addition, Daytona State College maintains a branch campus in Palm Coast.

The library system will assist patrons in filing taxes, and applying for some government programs, as well as with passport applications.

The project mission states, "This collection of oral life histories seeks to sample the common themes and unique stories of selected local residents.