Where Is Area Code 904?
Area code 904 serves Jacksonville and northeastern Florida. Its core service area includes Duval, Baker, Clay, Nassau, and St. Johns counties, along with communities in nearby Bradford County. The region is part of the U.S. Census South Atlantic region and borders Georgia to the north.
Jacksonville is the primary city in the area code. Other major communities include St. Augustine, Fernandina Beach, Orange Park, Green Cove Springs, Macclenny, and the Jacksonville Beaches. Notable geographic features include the St. Johns River, the Atlantic Ocean, Amelia Island, and the coastal area known as Florida’s First Coast.
Cities and Communities in the 904 Area Code
- Jacksonville, Duval County
- Atlantic Beach, Duval County
- Baldwin, Duval County
- Jacksonville Beach, Duval County
- Neptune Beach, Duval County
- Macclenny, Baker County
- Glen St. Mary, Baker County
- Green Cove Springs, Clay County
- Middleburg, Clay County
- Orange Park, Clay County
- Penney Farms, Clay County
- Fernandina Beach, Nassau County
- Callahan, Nassau County
- Hilliard, Nassau County
- Yulee, Nassau County
- St. Augustine, St. Johns County
- St. Augustine Beach, St. Johns County
- Hastings, St. Johns County
- Ponte Vedra Beach, St. Johns County
- Starke, Bradford County
- Lawtey, Bradford County
History of Area Code 904
Area code 904 was established in 1965 as a split from Florida’s original 305 area code. It initially covered a much larger portion of northern Florida than the Jacksonville-centered region it covers today.
Florida created area code 352 from part of 904 in 1995 and area code 850 from part of 904 in 1997. Area code 386 was created in 2001 from portions of 904 and 407. As demand for telephone numbers continued to grow, area code 324 was added as an overlay for the 904 region in 2024. Existing 904 numbers did not need to change because of the overlay.
Key Facts About Area Code 904
- Area code 904 is a geographic telephone area code in Florida, and Jacksonville is its primary city.
- Area code 904 is located in the U.S. Census South Atlantic region.
- Area code 904 uses the Eastern Time Zone.
- The 2020 U.S. Census counted 1,606,733 residents in Baker, Clay, Duval, Nassau, and St. Johns counties combined. This figure is a regional estimate, not an exact count of 904 telephone subscribers.
- Area code 904 began in 1965 as a split from area code 305.
- Area code 324 overlays area code 904 in the Jacksonville region and provides additional telephone numbers.
- The area includes the University of North Florida, Jacksonville University, Naval Air Station Jacksonville, and Castillo de San Marcos National Monument.
- Area code 904 is geographic, so it is different from toll-free codes such as 800, 888, and 877.
Frequently Asked Questions
What state is area code 904 in?
Area code 904 is in Florida.
What major cities use area code 904?
Major cities and communities include Jacksonville, St. Augustine, Fernandina Beach, Orange Park, Green Cove Springs, Macclenny, and Jacksonville Beach.
What time zone is area code 904 in?
Area code 904 is in the Eastern Time Zone, which uses Eastern Standard Time in winter and Eastern Daylight Time in summer.
Is area code 904 a toll-free number?
No, area code 904 is a geographic area code, not a toll-free code.