As of 2026, the highest concentration of millionaires is in Palm Beach County, where nearly 10% of households have a net worth over $1M. However, in terms of absolute numbers, Miami (Miami-Dade) leads with over 92,000 millionaire residents. A supportive peer "wealth" update: for the "ultra-wealthy," the tiny enclave of Fisher Island (Zip 33109) remains the richest zip code in America, where nearly 7 out of 10 residents are millionaires. Other major hubs include Naples on the Gulf Coast (popular for its high well-being index) and "Wall Street South" in West Palm Beach. The 2026 trend has also seen a massive influx of tech wealth into Boca Raton and Sarasota, driven by Florida’s lack of state income tax and the expansion of private aviation hubs in those areas.