Duval County

Atlantic Beach
Baldwin
Jacksonville
Jacksonville Beach
Neptune Beach
HASC code :US-FL-DU
FIPS 6-4 code :12031
Capital :Jacksonville
Largest city :Jacksonville
Elevation :High : Baldwin 86 ft
Low : Neptune Beach 10 ft
Population :778,879
Land Area :774 sq mi
(2,005 km²)
Density :1,006.30/sq mi
(388.54/km²)
Time zone :UTC -5