St. Johns County, Florida: The Numbers Behind the Move

Fast facts

Most residents live in unincorporated communities and master-planned developments (Nocatee, Ponte Vedra, Fruit Cove, SilverLeaf) rather than inside the two incorporated cities.

Cost of living and taxes

All figures above from Data USA and the Florida Department of Revenue. The homestead exemption is a flat deduction; the Save Our Homes cap is a separate, ongoing limit on how fast your assessed value can rise once you hold that exemption. New buyers pay tax on full market value the first year, then the cap applies starting the second year.

Master-planned communities add a further, non-optional line item most out-of-state buyers don’t expect. Nocatee’s Tolomato CDD assessment for the 2025-26 fiscal year runs roughly $2,000 to $3,200 a year, varying by village and lot width, according to a 2026 buyer’s guide to the community.

Figures per the Tolomato Community Development District and its published resident FAQ. HOA dues stack on top and vary by village and amenity level; get the specific figure for any address before writing an offer.

How long do I have to register my car and get a Florida driver’s license after moving here? Florida requires vehicle registration within 10 days of establishing residency and a Florida driver’s license within 30 days, both starting the day you become a resident, per the Florida Department of Highway Safety and Motor Vehicles.

Schools

St. Johns County School District ranked #1 among Florida school districts in Niche’s 2026 report, with 52,324 students and an overall A grade. That rank moves: in Niche’s late-2024 cycle, the district was #3, behind Seminole and Sarasota counties, despite the highest math and reading proficiency rates in the state at the time.

Where people live

Buyers choosing between communities are really choosing between CDD-funded infrastructure and none, and between school zones that can shift as the district grows. Families prioritizing a brand-new K-8 zone gravitate toward the newest phases of Nocatee or SilverLeaf; buyers who want to skip the CDD carrying cost look at older, established neighborhoods closer to St. Augustine that were built before the CDD financing model took hold locally.

What’s the real cost difference between a CDD home and a non-CDD home? A CDD home adds roughly $2,000 to $3,200 a year in assessments (using Nocatee’s Tolomato CDD as the reference point) plus a separate HOA fee; a non-CDD home skips that line but usually comes with an older, less amenity-heavy neighborhood and no shared infrastructure fund.

How does school enrollment and zoning work here? Assignment is based on home address; the district is opening two new K-8 academies for the 2026-2027 school year, so a home’s zone can change after purchase. Confirm the current assignment for a specific address with the district’s locator before buying.

Jobs and economy

Employment in the county grew 6.42% from 2023 to 2024, from 136,000 to 145,000 jobs, per Data USA. The largest employers by headcount, per the county’s own economic profile: the school district (6,438), UF Health St. Johns (1,564), county government (1,527), the Sheriff’s Office (816), the Florida School for the Deaf and Blind (689), and Carlisle Interconnect Technologies (650). The top three employment sectors for residents are health care and social assistance, professional and scientific services, and retail trade.

Climate, hurricanes, and flood risk

The 2026 Atlantic hurricane season runs June 1 through November 30, per NOAA. The county’s Alert St. Johns notification system and My Evacuation Zone tool are the two things residents are told to set up before a storm threatens, not during one. Ahead of the 2026 season, the county distributed roughly 14,000 free sandbags across five sites, from Butler Park West to the Vilano Boat Ramp, June 23 through 25.

Flood insurance isn’t required outside FEMA’s high-risk zones, but about 1 in 3 National Flood Insurance Program claims come from low- and moderate-risk zones, according to the NFIP’s own guidance.

Do I need flood insurance if I’m not in a high-risk zone? It isn’t required by federal law outside high-risk zones, but roughly a third of NFIP claims nationally come from those lower-risk zones, so a low-cost preferred-risk policy is usually worth carrying anyway.

How it compares to nearby counties

Figures per Data USA county profiles for Nassau, Flagler, Clay, and Duval counties. St. Johns County’s median home value runs $106,400 above Nassau, the next-highest of the four, and $185,700 above Duval, the lowest.

The downsides

Every source that profits from a sale describes this county in one direction. What they leave out: I-95 and US-1 traffic has thickened as growth outpaced road expansion; homeowners and flood insurance premiums have climbed statewide faster than incomes; St. Augustine’s historic district gets tourist-season congestion that residents plan trips around; and rapid growth means school zone lines move, sometimes mid-ownership.

Is St. Johns County really the 10th-fastest-growing county in the US? No single dated ranking supporting that specific figure turned up in this research. What’s confirmed is the raw growth: about 11,400 new residents in the twelve months to July 2025, part of a near-tripling of the county’s population since 2000.

Government and civic basics

Five elected commissioners, one per district, govern the county alongside five separately elected constitutional officers: the Clerk of Court, Property Appraiser, Sheriff, Supervisor of Elections, and Tax Collector. The Board of County Commissioners meets the first and third Tuesday of each month at 9 a.m. at the County Auditorium, 500 San Sebastian View in St. Augustine.