Island South
Homes for Sale in St. Augustine, FL
True comps, carrying-cost math, and listings before the portals.
Photo courtesy of WATSON REALTY CORP · via realMLS
As of September 2026, the MLS records 13 closed sales in Island South in St. Augustine, FL since 2009, the most recent in May 2026. Across St. Augustine as a whole, 2,667 homes closed in the last 12 months at a median of $454,157, 53 median days on market, with 685 homes for sale today. At that median and St. Johns County's FY2025-26 rate of 13.47 mills, annual property tax runs about $6,120 ($5,600 with the full homestead exemption).
Island South sits within the St. Augustine market in St. Johns County, and pricing here tends to be driven more by the condition and specifics of the individual home than by any single neighborhood benchmark. Because the spread can be wide, two homes on the same street can trade very differently depending on updates, layout, and how they show.
For a buyer, that means the work is in the comparison — reading each listing on its own merits rather than assuming a going rate. For a seller, it means condition and presentation carry real weight; a well-prepared home tends to separate itself, while deferred maintenance shows up quickly in buyer feedback and time on market.
The 60-Second Overview
Island South is a St. Augustine community in St. Johns County where the price you pay is tied closely to the specific home you choose rather than a flat neighborhood rate.
Pre-construction details are compiled from public records, builder announcements and builder listings, and are subject to change without notice; figures are deemed reliable but not guaranteed. Momentum Research figures are our own analysis. This page describes homes, pricing and community attributes, not residents.
The setting & the homes.
Aerial and on-site photos of Island South. Swipe to explore the community.
Swipe or use the arrows → tap any photo to enlarge
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Island SouthPhotos from realMLS listings in Island South; content deemed reliable but not guaranteed.
Who Island South is best for.
Best for
- Buyers who want a St. Augustine, St. Johns County location and are ready to shop home by home
- Buyers who will do the legwork to compare condition and finish rather than assume a set rate
- Sellers prepared to invest in presentation to stand out in a wide-spread market
Probably not for
- Buyers who want a tightly banded, predictable price for every home
- Buyers unwilling to evaluate condition differences before making an offer
- Sellers hoping to list as-is and still command top of the range
The market around Island South
Island South is too small for its own price trend, so here is the market around it.
In ZIP 32080, 219 homes are on the market and 17% are under contract — a slower corner of St. Augustine.
Across St. Johns County, 1,855 homes are active and 859 pending (32% under contract).
ZIP and county figures describe the wider market, not Island South specifically. Momentum Research analysis of MLS records.
The Island South buying strategy.
If we were buying in Island South today, this is the order of operations we would run for our clients.
Underwrite the condition first. Price the roof, HVAC, and systems honestly before judging any list price; condition swings value here more than square footage alone.
Match the home to real comps. Recent sales of similar condition and lot, not the asking price, tell you what a home is worth.
Move deliberately, not desperately. Neither side has a decisive edge, so a well-prepared, fairly-priced offer wins without overpaying.
Line up financing and inspection early. A pre-approval and an inspection plan let you act fast and negotiate from evidence.
Keep an agent in your corner. The listing agent works for the seller; we represent you and prepare a hand-built valuation before any offer in Island South.
How to read Island South
This is a community best understood home by home. Rather than a tight, predictable price band, you are looking at a range that reflects differences in size, condition, and finish. That rewards buyers who take the time to tour and compare, and it rewards sellers who invest in getting a home genuinely ready before it lists.
Location does the heavy lifting on lifestyle here: this is St. Augustine, in St. Johns County, with the coastal city's amenities within reach. Beyond that, we would rather point you to the specific home and its particulars than make sweeping claims we cannot back with the snapshot in front of us.
The location and the amenities are priced into every listing in Island South. The deal is won or lost on condition, the comps, and the renovation math.
Why work with Momentum here
In a community where value is condition-driven and the spread is wide, our job is to read each listing honestly and tell you where a home sits relative to what it's actually asking. We work Island South and the wider St. Augustine market closely, and we would rather talk you out of the wrong house than push you into it.
Island South in 15 seconds.
HOA, CDD & Fees
- HOA status not on record. Verify any dues before you offer
- Any club/amenity membership is billed separately
Confirm the current HOA dues, exactly what they cover, and any CDD bond or special assessment for a specific address before you offer.
Tools for a Island South buy.
Free calculators to pressure-test the real cost before you tour.
Selling here is won on condition and pricing to real comps, not an automated estimate. The right number comes from closed Island South sales matched to your home.
Price it to the comps and condition, not an automated estimate.
If you are thinking about selling in Island South, the right list price comes from recent comparable sales matched to your home's condition and location, not an automated estimate.
What is your Island South home worth?
Get a no-obligation home value based on real comparable sales in Island South, not an automated guess. Tell us about your home and we will personally prepare your numbers and a pricing strategy. No obligation, no spam.
See homes for sale in Island South on the map →
Should you buy in Island South?
An honest fit check. We will tell you when it is not your community.
Nearby Communities
Explore more neighborhoods near Island South with Momentum Realty’s local guides.
Data sources & freshness
| Live listings | realMLS, refreshed twice daily (last: August 30, 2026) |
| Under-contract shares | realMLS records, as of 2026-08-30 |
| Historical depth | Closed-sale records back to 2009 (13 transactions analyzed) |
Verify the primary sources yourself: Florida DOR · U.S. Census · FEMA flood maps · Citizens Property Insurance.
Momentum Research figures are our own analysis of realMLS records; MLS data is deemed reliable but not guaranteed. Methodology: how Momentum market scores are computed. Market metrics describe homes for sale and recent sales, not residents.
Own a home here?
You just read the data. Now see what your home is worth.
The numbers on this page move markets in the aggregate. The number that matters to you is what a buyer pays for your address. Momentum sells for 1.25% above the realMLS member average and 8 days faster, and we’ll price yours against live your area comps.
Looking to buy here? Search homes for sale →
What’s your home worth in your area?
A real valuation with real comps from a local listing agent, not an instant algorithm. Response within one business day.
See how Island South fits the bigger picture — live prices, inventory, and Momentum Scores:
The real cost & risk here
Before the list price, the Florida math the portals skip. These are St. Johns County typicals — your exact home, flood zone, and insurance quote will vary, so verify each before you offer.
Check it for your address: look up your flood zone (FEMA) · insurance by county · true-cost calculator · St. Johns County scorecard.
County typicals from Momentum’s Florida housing data (Zillow & Realtor.com aggregates, Census, FRED), updated monthly; insurance modeled. Flood zone is property-specific — always confirm via FEMA.
Island South Market Scorecard
Island South is currently a no active listings market. Limited supply, a median asking price of n/a.
Typical home value in the 32080 ZIP is $540,647, about 18.8% above the Florida norm (Zillow Home Value Index).
Go deeper: ZIP market scorecard · county scorecard · true cost calculator · affordability calculator.
Live data: realMLS, refreshed twice daily. Typical value: Zillow Research. Market metrics only; these describe homes for sale and recent sales, not residents.