The Jacksonville Metropolitan Area, also called the First Coast, Metro Jacksonville, or Northeast Florida, is the metropolitan area centered on the principal city of Jacksonville, Florida and including the First Coast of North Florida. As of the 2020 United States census, the total population was 1,605,848. The Jacksonville–Kingsland–Palatka, FL–GA Combined Statistical Area (CSA) had a population of 1,733,937 in 2020 and was the 34th largest CSA in the United States. The Jacksonville metropolitan area is the 40th largest in the country and the fourth largest in the State of Florida, behind the Miami, Tampa, and Orlando metropolitan areas.

Florida's First Coast, or simply the First Coast, is a region of the U.S. state of Florida, located on the Atlantic coast of North Florida. The First Coast refers to the same general area as the directional region of Northeast Florida. It consists roughly of the counties abutting Jacksonville—Duval, Baker, Clay, Nassau, and St. Johns—and nearby Flagler County and Putnam County. The name originated in a marketing campaign in the 1980s, and has become part of Florida's regional vernacular.