904 Area Code: Jacksonville & the First Coast

Area code 904

The 904 area code is one of the most recognisable in the United States, primarily serving northeastern Florida. It is strongly associated with the Jacksonville metropolitan region and surrounding communities. Below is a complete, SEO-optimised guide covering its location, history, time zone, cities, and key details.

What is the 904 area code?

The area code 904​ is a North American telephone codes that covers northeastern Florida. It includes major cities, suburban areas, and coastal regions along the Atlantic Ocean.
Most importantly, it serves Jacksonville, which stands as the largest city in Florida in both population and land area.

Where is the 904 Area Code Located?

904 area code location​ covers most of the First Coast region of northeastern Florida. Its territory includes all of Duval County (home to Jacksonville), St. Johns County (including historic St. Augustine), Nassau County, Baker County, and most of Clay County. This gives the area code a broad geographic footprint that stretches from the Georgia border in the north, through coastal resort communities and inland towns, to the south and west.

Major cities covered

The area code 904 location​ includes some of its most notable cities and communities, such as:

  • Jacksonville (largest city and economic hub)
  • St. Augustine (historic tourism center)
  • Orange Park
  • Fernandina Beach
  • Ponte Vedra Beach
  • Yulee
  • Green Cove Springs

These cities make the 904 area code a mix of urban development, tourism, and coastal living.

A brief history of area code 904

The 904 area code where​ was created in 1965, when it split from the original 305 areas codes that once covered the entire state of Florida.

  • 1965: Area code 904 introduced for northern Florida
  • 1995: Split occurred when 352 area code was created
  • 2001: Another split created the 386 area code
  • After splits, 904 became concentrated around Jacksonville and nearby regions

Today, it remains one of Florida’s most established area codes.

904 area code

Who lives in the 904 area code?

The location of 904 area code​ serves a diverse and growing population across northeast Florida. The region’s median age is approximately 40 years, with a fairly even gender split of about 49% male and 51% female. The area has seen sustained growth over recent decades, driven largely by Jacksonville’s expanding economy, military presence, and quality of life.

Time Zone

The entire area code 904 florida​ region operates in the:

Eastern Time Zone (ET)

  • Standard Time: UTC -5
  • Daylight Saving: UTC -4

Jacksonville: the city behind the 904

Jacksonville, known locally as “Jax”, is the dominant city in the 904 phone area code​ and one of the most significant economic centres in Florida. The city is home to several Fortune 500 and Fortune 1000 companies, making it an attractive destination for business expansion. Industries including finance, healthcare, logistics, defence, and technology all have strong footholds in the region. Jacksonville’s deep-water port, major military installations (NAS Jacksonville and Mayport Naval Station), and extensive highway infrastructure make it a critical hub for trade and transportation along the southeastern US corridor.

Is 904 Still in Use?

Yes, the 904 area code florida​ is still active and widely used. Unlike overlay regions, 904 does not currently require multiple area codes in the same geographic area, making it easier for local dialing within the region.

Frequently Asked Questions (FAQs)

It is located in northeastern Florida, mainly covering Jacksonville and surrounding areas.

Yes, it is a Florida-based area code serving the northeast region.

The primary city is Jacksonville.

It was created in 1965.

It follows the Eastern Time Zone (ET).

Conclusion

The 904 area code is a historically important and economically strong region in Florida, centred around Jacksonville and the First Coast. With a blend of coastal beauty, urban development, and business growth, it remains a key part of Florida’s telecommunications and regional identity.

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