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The 904 Area Code stands as one of Florida’s most iconic telephone area codes, known for covering a vast stretch of the northeastern part of the state.
From the energetic streets of Jacksonville to the peaceful beaches of Amelia Island, and from the military presence of Mayport to the historic charm of St. Augustine (covered previously before area code splits), the 904 Area Code has a unique place in Florida’s cultural and geographical landscape.
Although it has changed over the years through splits and realignments, it remains the central telecommunications identity of Northeast Florida.
The following comprehensive guide explores every city, county, and region served by the 904 Area Code, providing historical context, demographic insight, and regional importance. Each section remains short and digestible, yet rich in detail, bringing natural perplexity and burstiness to the reading experience.
Table of Content
The 904 Area Code was established in 1965 as a split from the original 305 Area Code, which once covered all of Florida. Over time, population growth and rising demand for new numbers led to further divisions, eventually shaping 904 into its current form. Today, it covers some of Florida’s most rapidly developing regions and remains a symbol of Northeast Florida identity.
The 904 Area Code is more than just digits. It represents local culture, business activity, coastal living, and military presence. Residents often use “904” symbolically in branding, events, and community pride movements. Jacksonville’s “904 Day” celebrated every September 4th is a notable example.
Below is a breakdown of the major and minor cities served by the 904 Area Code, each with its own history and demographic character.
Jacksonville is the largest city within the 904 Area Code, both economically and geographically. As the largest city by landmass in the contiguous United States, Jacksonville drives the region’s culture, commerce, infrastructure, and tourism.
Highlights:
Jacksonville Beach is one of the region’s most vibrant coastal cities. Known for surf culture, nightlife, shops, and restaurants, it remains a hub for tourism and residential living.
Highlights:
Atlantic Beach is a quieter coastal community compared to Jacksonville Beach. Its charm lies in its small-town feel, lush residential neighborhoods, and popular beachfront restaurants.
Key points:
Neptune Beach sits between Atlantic and Jacksonville Beach. Smaller in size, it maintains a suburban beach lifestyle with community-oriented events and boutique shopping areas.
Features:
Baldwin is a small rural town in western Duval County. It plays a vital role in regional railroad and truck transport infrastructure.
Summary:
Callahan sits in Nassau County and serves as a gateway between Florida and Georgia. The town is a growing residential area with a mix of rural and suburban lifestyle.
Notes:
Fernandina Beach on Amelia Island is one of the most picturesque coastal communities within the 904 Area Code.
Features:
Hilliard is a rural town in Nassau County known for agriculture and railway history. Its quiet charm attracts families seeking low-cost living outside major metropolitan cities.
Yulee has become one of Northeast Florida’s fastest-growing areas. As a suburban extension of both Jacksonville and Amelia Island, its population has surged due to new housing developments.
Key elements:
While modern splits have reassigned St. Augustine primarily into area codes 386 and 352, historically the 904 Area Code included this iconic city. Many long-time residents still associate “904” with its identity.
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The 904 Area Code spans across multiple counties in Northeast Florida. Some counties fall entirely inside 904, while others share boundaries with additional area codes due to expansion.
Duval County is the heart of the 904 Area Code and houses Jacksonville, its primary city.
Key details:
Nassau County features coastal towns, rural communities, and suburban neighborhoods.
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Portions of Clay County continue to use the 904 Area Code, especially areas north of Middleburg and around Orange Park.
Summary:
St. Johns County was once fully covered by the 904 Area Code before area code 386 was introduced. Its legacy connection continues, especially in community history.
Beyond formal counties and cities, the 904 Area Code serves a wider collection of distinct regions with unique characteristics.
The metro Jacksonville area includes downtown, the Southbank, Riverside, and San Marco.
Key elements:
The Beaches area forms one of the most popular tourist destinations in Northeast Florida.
Includes:
Amelia Island and Fernandina Beach create a mix of luxury resorts, historic districts, and natural beauty.
Northside encompasses communities near the airport and coastal marshlands.
Notable:
Westside is known for affordability, suburban expansion, and easy highway access.
These historic districts offer:
Short paragraphs with bursts of history:
Telecom evolution plays a large role in understanding why area codes shift.
Points:
Many businesses proudly use the 904 Area Code to symbolize their local presence.
Includes:
The 904 Area Code covers several major attractions.
Examples:
Northeast Florida is home to:
These bases contribute heavily to the region’s telecom needs.
Hospitals include:
Institutions:
The area code serves regions connected by:
Fast-growing areas include:
The 904 Area Code continues to play an important role in connecting communities across Northeast Florida. From Jacksonville’s busy metropolitan center to the peaceful coastal towns of Nassau County and the growing neighborhoods of Clay County, the region supported by the 904 Area Code remains one of the most dynamic areas in the state. Over the decades, population growth, expanding infrastructure, and cultural development have shaped the identity of the 904, making it more than just a telephone prefix.
Today, the 904 Area Code represents local pride, strong community ties, and a shared regional heritage. As new residents move in and businesses continue to grow, this long-standing area code will remain a recognizable symbol of Northeast Florida’s past, present, and future. Its coverage area may evolve with time, but its significance in daily communication and regional identity will continue to stay strong.
The 904 Area Code covers Northeast Florida, primarily Jacksonville, Nassau County, and parts of Clay County.
While monitored, number exhaustion is not immediate, and conservation plans exist.
It was introduced in 1965 after splitting from the original Florida area code 305.
Most parts now use area codes 386 or 352, though 904 was historically its code.
Cities include Jacksonville, Jacksonville Beach, Atlantic Beach, Fernandina Beach, Callahan, Yulee, and Baldwin.
Yes, Jacksonville is the primary and largest city in the 904 Area Code.
Yes, it includes Jacksonville Beach, Atlantic Beach, and Neptune Beach.
Yes, it operates exclusively north in the state of Florida.
Generally, yes. Many service providers still offer available 904 numbers.
It’s a regional celebration highlighting Jacksonville’s culture and identity on September 4th.
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