What Fleming Island is actually like
Fleming Island takes its name from Irish immigrant George Fleming, who received a 1,000-acre Spanish land grant and established the “Hibernia” plantation on the site in 1790 — one of the area's earliest European settlements along the St. Johns River. Unlike neighboring Orange Park, Fleming Island has never incorporated as its own municipality; it remains an unincorporated census-designated place governed as part of Clay County.
That hasn't slowed its growth — the 2020 Census recorded 29,142 residents, up from 27,126 in 2010. The community spans roughly 23 square miles, nearly a third of it water, reflecting its geography as a peninsula wrapped by the St. Johns River, Doctors Lake, Black Creek, and Swimming Pen Creek.
Fleming Island today is known as one of the Jacksonville metro's wealthier and more sought-after addresses, driven substantially by large master-planned communities like Eagle Harbor and Fleming Island Plantation, and by consistently well-regarded Clay County schools. Its recreational amenities and 7-mile island-length multi-use path give it a suburban, amenity-rich character distinct from Orange Park's more historic town-center feel just across the water.
Home values in Fleming Island
Zillow tracks home values city-by-city, not for every neighborhood within a city — Fleming Island is one of the pockets that doesn't get its own figure. Rather than publish a citywide number that might not reflect this specific part of town, we're leaving pricing out of this particular guide for now.
Getting around
Primary access is via US-17, running the length of the island and connecting north through Orange Park to I-295. An 8-foot-wide multi-use path runs roughly 7 miles along the island for pedestrian and bike traffic.
Fleming Island FAQ
Is Fleming Island a city, or is it part of Clay County?
It's unincorporated — there's no separate city government; residents are governed directly by Clay County, though the community has a strong, distinct identity.
What utility serves water and sewer on Fleming Island?
Most likely Clay County Utility Authority, consistent with unincorporated Clay County service — confirm for the specific address via CCUA's own lookup tool.
Who provides electric on Fleming Island?
Clay Electric Cooperative, confirmed via the co-op's own service-area documentation, which covers Clay County.
How far is Fleming Island from downtown Jacksonville?
About 21 miles via US-17 and I-295, roughly 30-40 minutes outside peak traffic.
Is Fleming Island prone to flooding since it's surrounded by water?
The island borders the St. Johns River, Doctors Lake, Black Creek, and Swimming Pen Creek, and Clay County saw significant flooding along these waterways during Hurricane Irma in 2017. Always check FEMA flood maps for the exact address.