Fleming Island is a community in Clay County, Florida, home to about 29,766 people across 16 square miles. Its ZIP code is 32003.
Homes sold for a median of $209 per square foot in the three months ending August 2026, a seller’s market.
Each card is that ZIP code’s whole market, including any part outside Fleming Island. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Fleming Island’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Jacksonville International Airport (JAX)28 miles away |
|---|---|
| Nearest city of 250,000+ | Jacksonville, FL17 miles away |
| Nearest city of 1 million+ | Philadelphia, PA779 miles away |
Straight-line distances from the center of Fleming Island; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Fleming Island had 29,142 residents in the 2020 census, up 7% since 2010.
It’s the 145th largest of 954 towns in Florida by population.
Clay County grew from 5,635 residents in 1900 to 218,245 in 2020.
Clay County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 92°F in summer, and winter lows average 47°F. About 47.7 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Jacksonville Nas, FL weather station (10 miles away).
48,303 jobs at 4,455 businesses in Clay County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
419 doctors and other health care providers list an office in Fleming Island.
Nearest hospitals
Providers with an office here
| Primary care doctors | 38 |
|---|---|
| Specialist doctors | 79 |
| Dentists | 33 |
| Nurse practitioners and physician assistants | 112 |
| Mental health providers | 62 |
| Physical and occupational therapists | 76 |
| Optometrists | 8 |
| Chiropractors | 11 |
| Pharmacies | 8 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (8 nearby)
Grocery stores (5 nearby)
Pharmacies (2 nearby)
Libraries (1 nearby)
Museums
Counts are within about 3 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Public schools here are run by Clay. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Fleming Island Elementary SchoolOrange Park | Pre-K–6 | 629 | Public | 1.5 mi |
| Robert M. Paterson ElementaryOrange Park | Pre-K–6 | 665 | Public | 1.2 mi |
| St Johns Classical AcademyFleming Island | Pre-K–12 | 978 | Charter | 0.7 mi |
| Thunderbolt Elementary SchoolFleming Island | Pre-K–6 | 756 | Public | 0.6 mi |
| St. Johns Classical Academy Orange ParkOrange Park | K–12 | 405 | Charter | 4.9 mi |
| Fleming Island High SchoolOrange Park | 9–12 | 1,765 | Public | 0.6 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Heritage Christian AcademyFleming Island | 1–11 | 12 | Christian (no specific denomination) | 2.0 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
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Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.