Nassau County Florida map — This map places Amelia Island and Fernandina Beach in the east, Yulee on the mainland, and Callahan and Hilliard along the western U.S. 1 corridor. Reading those places together reveals a county shaped by Atlantic beaches, tidal waterways, suburban growth, forests, and the Florida–Georgia line.
The guide goes beyond labels by explaining the St. Marys and Nassau river systems, the roles of I-95, U.S. 17, SR 200/A1A, and U.S. 1, and the county’s relationship to Baker and Duval counties. It provides practical reference points for trip planning, local research, and comparing the coast with inland communities.
Download the Nassau County map
- Map file: County reference map
- File format: ZIP
Table of Contents
Quick Facts
- State: Florida
- County: Nassau County
- County seat: Fernandina Beach
- 2020 population: 90,352
- 2020 land area: 648.68 square miles
- County FIPS code: 12089
- Mapped places: Fernandina Beach, Yulee, Callahan, Hilliard, Bryceville
- Natural features: Amelia Island, St. Marys River, Amelia River, Nassau River and tidal marshes
- Main highways: I-95, U.S. 1, U.S. 17, SR 200/A1A
- Neighbors: Georgia to the north, Baker County to the west, Duval County to the south, and the Atlantic Ocean to the east
What the Map Shows
At the eastern edge of the map, Amelia Island runs north to south beside the Atlantic. Fernandina Beach occupies the island’s northern part, framed by St. Marys Inlet to the north and the Amelia River to the west. Nassau Sound lies beyond the island’s southern end, showing why the county’s coast is a system of barrier-island shores, inlets, and tidal channels rather than one simple line.
Yulee is the principal mainland reference point west of the island, near SR 200/A1A, U.S. 17, and I-95. It is a census-designated place, not an incorporated city, but its location makes it essential for explaining travel between Amelia Island and northern Jacksonville. Plotting Yulee and Fernandina Beach together makes the island–mainland relationship easy to understand.
Farther west, Callahan sits on the U.S. 1 and SR 200 side of the county, while Hilliard lies north along U.S. 1 near Georgia. Bryceville helps orient the rural southwest. This pattern highlights the contrast between the more developed eastern corridor and the county’s broad interior of small communities, timberlands, and wetlands.
County Layout and Location
Nassau County occupies Florida’s far northeastern corner. The St. Marys River traces the state line with Georgia along the north and drains east to the Atlantic. Baker County borders the west, Duval County borders the south, and the ocean opens along the east, placing Nassau at the meeting point of the Jacksonville region and the Georgia coast.
The eastern landscape is organized around Amelia Island, the Amelia River, Nassau Sound, and extensive tidal marsh. The Nassau River and its marsh system are key landmarks along the county’s southeastern side near northern Duval County. Because channels and wetlands interrupt direct routes, bridge crossings and highway approaches matter more than straight-line distance when estimating travel.
Inland Nassau is generally low and forested, with wetlands following creeks and river corridors. Fernandina Beach has island, port, and visitor-oriented landscapes; Yulee has expanding residential and commercial corridors; and Callahan and Hilliard retain a stronger small-town and forest-country setting. Those differences explain why places within one county can have distinct travel patterns and land uses.
Local Context
Transportation is the clearest way to read the county’s east–west structure. I-95 crosses the eastern mainland north to south, with Exit 373 for SR 200/SR A1A and Exit 380 for U.S. 17. U.S. 17 serves the coastal-mainland side and reaches Georgia, while U.S. 1 links Callahan and Hilliard through the western corridor.
SR 200/A1A is the main cross-county route from the Callahan side through Yulee toward Amelia Island. East of Yulee it crosses the Amelia River to enter the island, making it the most straightforward route to follow from I-95 toward Fernandina Beach. Actual conditions near the island approaches and beaches can vary, so travelers should check current traffic separately.
Fort Clinch State Park at the northern end of Fernandina Beach includes Atlantic shore as well as shoreline along St. Marys Inlet and the Amelia River, making it a useful place to observe the island’s geography. Yulee and western Nassau, by contrast, are organized around mainland commercial, residential, forest, and rural landscapes; the best access route therefore depends on which part of the county is the destination.
Ways to Use This Map
- Compare Fernandina Beach on Amelia Island with mainland Yulee
- Trace the Florida–Georgia line along the St. Marys River
- Orient the Nassau River, Amelia River, Nassau Sound, and surrounding marshes
- Plan an island approach using I-95, U.S. 17, and SR 200/A1A
- Follow U.S. 1 through Callahan and Hilliard to compare western communities
- Study northeastern Florida with the adjacent Baker and Duval county maps
Frequently Asked Questions
Is Yulee an incorporated city?
No. Yulee is a census-designated place and an unincorporated community. Its position near I-95, U.S. 17, and SR 200/A1A, together with county offices and commercial growth, nevertheless makes it one of the most important map references in Nassau County.
Which road connects I-95 with Amelia Island?
Use I-95 Exit 373 and follow SR 200/A1A east through Yulee. The route crosses the Amelia River onto the island; Fernandina Beach is then reached by continuing toward the island’s northern end.
What forms Nassau County’s boundary with Georgia?
The St. Marys River forms the northern state boundary. It flows east toward St. Marys Inlet between the north end of Amelia Island and Georgia’s Cumberland Island.
Sources
- U.S. Census Bureau: Nassau County QuickFacts
- Nassau County official website: communities and districts
- Florida Department of Transportation: I-95 exit numbers
- Florida State Parks: Beaches of Fort Clinch
Related County Maps
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