St. Johns County · Residential desk · September 13, 2026
St. Johns County has three municipalities and a county index
Last updated:
These notes are about St. Johns County as a whole. Only three places are incorporated: St. Augustine, St. Augustine Beach, and Marineland. Nocatee, Fruit Cove, and World Golf Village are unincorporated. The house-price number we cite is a county index.
What the cited tape move does to a $400,000 30-year shape
Principal and interest only, from 6.71% as of Aug 14 to 6.81% as of Aug 28. That is about $27 more per month before tax and insurance. Run the calculator. Not an approval.
The cities, and the places that are not cities
The 2020 Census lists three incorporated places in St. Johns County: Marineland town, St. Augustine city, and St. Augustine Beach city. Marineland also appears in Flagler County in the same file. St. Augustine Beach is not the same city as St. Augustine.
Named unincorporated communities include Butler Beach, Crescent Beach, Flagler Estates, Fruit Cove, Hastings, Nocatee, Palm Valley, St. Augustine Shores, St. Augustine South, Sawgrass, Vilano Beach, and World Golf Village. We will not invent a sale price for Nocatee.
What the county house-price number is
The Federal Housing Finance Agency publishes an annual house-price index for St. Johns County, FL. On FRED that series is ATNHPIUS12109A. The index was 346.50 in 2025, 340.44 in 2024, and 342.04 in 2023 (2000 equals 100; last updated March 31, 2026). That number is for the whole county. It is not a sale price for one city.
The last official daily 30-year rate on this site is 6.81% as of August 28. That is a national rate, not a local lock. Use the payment calculator only as a payment shape. The result is not an approval.
What Census vacancy can say
The Census Bureau’s 2024 American Community Survey 1-year estimates, released September 11, 2025, give St. Johns County, FL a homeowner vacancy rate of 1.2% and a rental vacancy rate of 4.6%. 10.2% of housing units were vacant, which includes seasonal and occasional-use homes. The 2023 1-year estimates were a 1.4% homeowner vacancy rate and a 4.6% rental vacancy rate. Those are housing-unit rates for the whole county. They are not an office or retail vacancy rate, and they are not a vacancy print for one city.
FAQ
Does this page publish a sale price for every city in St. Johns County, FL?
No. The house-price figure here is the FHFA annual county index via FRED ATNHPIUS12109A: 346.50 in 2025 versus 340.44 in 2024. We do not invent a median sale price or days on market for each town.
Is that county index a mortgage rate?
No. The last official daily 30-year cited on this site is 6.81% as of August 28, 2026. That is a national survey, not a personal APR.
Does this page publish an office or storefront vacancy rate for St. Johns County, FL?
No. The vacancy figures here are Census ACS 2024 1-year housing rates for the county: homeowner vacancy 1.2% and rental vacancy 4.6%. That table is about housing units, not commercial space.
Sources: FRED ATNHPIUS12109A (FHFA all-transactions St. Johns County, FL annual index 346.50 (2025), 340.44 (2024), 342.04 (2023); 2000=100; updated March 31, 2026); Census 2020 Florida place-by-county file (Incorporated places named for St. Johns County, FL); Mortgage News Daily daily rate index (30-year 6.81% as of August 28, 2026); Freddie Mac PMMS (weekly 30-year 6.66% as of August 27, 2026); Census ACS 2024 1-year DP04 (St. Johns County, FL homeowner vacancy 1.2%, rental vacancy 4.6%, vacant housing units 10.2%; released September 11, 2025); Census ACS 2023 1-year DP04 (St. Johns County, FL homeowner vacancy 1.4%, rental vacancy 4.6%, vacant housing units 10.7%; released September 12, 2024).