The Real Cost of Owning Property in Edisto Beach, South Carolina

The Headline Price, and Why It Moved Fast Then Cooled

Redfin's Edisto Beach city page reports a $719,000 median sale price over its most recent reporting month, down 4.1% year-over-year, at a median $500 per square foot (also down slightly year-over-year). Zillow's separate ZHVI (Zillow Home Value Index) for Edisto Beach puts the average home value at $734,201, down 2.1% over the trailing year. Both of those current, cooling numbers sit well below where the market was pointing in early 2025: Redfin/Rocket Homes market reporting cited a $750,000 median sold price for January 2025, up 23.8% year-over-year from January 2024. Read together, that's a small, thin-inventory market (Edisto Beach recorded only 1,033 residents at the 2020 Census, and total annual sale counts here are low relative to a Myrtle Beach or Hilton Head) that ran up sharply into early 2025 and has since pulled back modestly -- exactly the kind of volatility a low-transaction-count market shows more of than a large one. See the investment-outlook page for how this compares to South Carolina's statewide price trend over the same period.

One important scope note: some listing platforms blend results for "Edisto Beach" the incorporated town with "Edisto Island" more broadly, which includes a much larger area of unincorporated Colleton and Charleston county land beyond the town's oceanfront core. This page uses figures specifically labeled for Edisto Beach; confirm which boundary any given statistic actually covers before comparing it to a specific listing.

Property Tax: SC's 4%/6% Assessment Split Is the Single Biggest Lever Here

South Carolina assesses real property at one of several fixed ratios of fair market value, and the two that matter for almost any Edisto Beach buyer are 4% for an owner-occupied legal (primary) residence and 6% for everything else residential -- second homes, investment property, and straight rentals (S.C. Code Section 12-43-220, confirmed via SC Department of Revenue's September 2025 policy manual). Because Edisto Beach is overwhelmingly a second-home and vacation-rental town rather than a town of primary residences, its effective tax base skews hard toward the 6% rate -- which shows up directly in the numbers: Ownwell's own published effective property-tax-rate data for Edisto Island (Colleton County) runs 1.84%, well above Colleton County's overall average effective rate, which multiple sources put in the roughly 0.43%-0.65% range. That gap between the Edisto-specific figure and the countywide average is not noise -- it's the 4%/6% assessment split showing up in aggregate, because most of the rest of Colleton County is inland, owner-occupied, primary-residence property taxed at the lower ratio, while Edisto's tax base is disproportionately non-owner-occupied.

On a $719,000 property (Redfin's current Edisto Beach median), that 1.84% Edisto-specific effective rate works out to roughly $13,230 per year -- a reasonable planning number for a second home or investment purchase, since that's the assessment ratio and rate mix that figure already reflects. For an owner-occupied primary residence, the math is meaningfully different in the buyer's favor, for two compounding reasons this page states separately rather than blending into one soft estimate: first, the assessed value itself is 4% of fair market value instead of 6% -- two-thirds the assessment base, all else equal; second, South Carolina's 2006 Act 388 exempts a qualifying owner-occupied primary residence from the school district's operating millage entirely (only school bond/debt-service millage still applies), and school operating millage is typically one of the largest single components of a total South Carolina property tax bill. Scaling the 1.84% figure down by the 4/6 assessment ratio alone gives a rough floor of about 1.23% (roughly $8,850/year on a $719,000 home); the Act 388 school-operating exemption on top of that would push a genuine owner-occupied bill lower still. This page states that floor as a derived estimate, not a directly published owner-occupied rate for Edisto Beach specifically -- get an actual Colleton County Assessor estimate using the property's real fair market value and confirm current eligibility for the 4% legal-residence rate (SC Code 12-43-220) and the Act 388 exemption before budgeting a number.

One more mechanic worth knowing before buying: South Carolina reassesses real property countywide on a 5-year cycle, and any resulting increase in a parcel's fair market value from that reassessment is capped at 15% within that 5-year window (the cap applies to the assessed value, not directly to the tax bill, and does not apply to the jump in value at the point of an actual sale -- a property is reassessed to full current market value at transfer, then the cap applies going forward from there). A seller's current, capped tax bill is not a reliable predictor of what a buyer's bill will be after purchase.

Flood Insurance: The Whole Town Is in a Mapped Flood Zone

FEMA's Flood Insurance Rate Maps place the entire Town of Edisto Beach within a Special Flood Hazard Area, predominantly Zone AE -- the mapped 1%-annual-chance ('100-year') floodplain determined by detailed study methods. That means flood insurance here is a near-universal fact of ownership rather than a risk that applies only to some parcels, and any mortgaged purchase will require it. Community-level National Flood Insurance Program data aggregated by insurance-industry sources puts Edisto Beach's average flood premium around $885 per year across roughly 1,600 active policies town-wide -- a useful planning baseline, though any specific property's actual premium depends on its individual elevation certificate, base flood elevation, foundation type, and construction date relative to the current flood maps. Get an elevation-specific NFIP or private-market flood quote for any real parcel before relying on the town average.

Wind and Hail: A Designated State Wind-Pool Territory, Not Standard-Market Coverage by Default

Edisto Beach sits inside the South Carolina Wind and Hail Underwriting Association's designated coastal territory -- the state-created insurer-of-last-resort wind pool covering specifically described zones within five coastal counties (Beaufort, Charleston, Colleton, Georgetown, and Horry, per S.C. Code Section 38-75-310). Inside that designated territory, standard homeowners policies frequently exclude wind and hail coverage outright, requiring either a private carrier willing to underwrite coastal wind risk or a separate policy through the Wind and Hail Underwriting Association itself. On top of that, SC coastal homeowners policies typically carry a separate named-storm or hurricane deductible expressed as a percentage of the dwelling's insured value -- commonly in the 1%-5% range -- rather than a flat dollar amount; industry guides give the example of an $8,000 out-of-pocket deductible on a $400,000 dwelling at a 2% named-storm deductible before that coverage responds at all. None of these figures substitute for an actual quote on a specific property; they establish that 'get a wind/hail quote before you budget a flat homeowners-insurance number' is not optional advice in this market the way it might be for an inland SC purchase.

Water, Sewer, and Town Utilities: Small System, Published Rates

Unlike the insurance and tax figures above, this is one line item with a genuinely precise, town-published number: per the 2023 South Carolina Municipal Water & Sewer Rate Survey, an inside-town residential customer's standard monthly water service charge in Edisto Beach is $46.53 and the monthly sewer service charge is $56.86 -- a combined roughly $103/month baseline before usage-based tiers, which the survey does not fully detail here. The Town of Edisto Beach's own Utilities Department serves approximately 2,300 water customers and operates a 350,000-gallon-per-day wastewater treatment lagoon, 13 individual sewer lift stations, and roughly 13 miles of sewer piping -- a small, town-run system rather than a large regional utility, which is worth factoring into any due-diligence conversation about capacity and future rate increases. For electricity and gas, this research did not find an Edisto Beach-specific figure; South Carolina's statewide 2026 average utility-cost estimates run roughly $170/month for electric and $113/month for gas for a typical home, which this page states as general SC context, not an Edisto-specific number.

If Rental Income Is Part of the Plan

The Town of Edisto Beach maintains what several industry sources describe as a business-friendly regulatory environment permitting both short-term and long-term rentals, and Edisto Island draws an estimated 200,000 visitors a year with a summer peak season (June-August). Short-term-rental data aggregators disagree meaningfully on the exact revenue picture, which this page states rather than blending into one number: one source (Edge by Teeco) puts average trailing-twelve-month revenue for an active listing around $33,800/year with occupancy and rate data suggesting a lower-performing average; another source describes an average 62% occupancy rate at roughly $349-$403 average daily rate, and a separate market-data provider cites median revenue around $62,500 across a large active-listing sample. That spread -- roughly $34K to $62K in cited 'average' or 'median' annual revenue depending on the source and methodology -- reflects real variation in property type, location (oceanfront and marsh-view command materially higher rates than inland), and management quality, not a single reliable number a buyer should anchor to. Full-service short-term-rental management fees in this market commonly run 15%-30% of gross revenue, with full-service packages typically landing in the 22%-30% range. This page does not attempt a full short-term-rental-regulation deep dive -- confirm current town ordinance requirements, business-license rules, and any recent policy changes directly with the Town of Edisto Beach before underwriting a purchase around rental income.

Putting the Real Number Together

For a second-home or investment purchase at the Redfin median ($719,000), a realistic sourced annual-cost floor looks roughly like: about $13,230 in property tax at Edisto Island's 1.84% Ownwell-sourced effective rate; an average of roughly $885/year in flood insurance (town-wide average, not a property-specific quote); a separate, property-specific wind/hail policy plus a percentage-based named-storm deductible; and roughly $1,240/year in baseline town water and sewer charges before usage tiers ($103.39/month combined base rate). For a genuinely owner-occupied primary residence, the property-tax line drops meaningfully -- to roughly $8,850/year or lower once the 4% assessment ratio and the Act 388 school-operating-millage exemption are both applied -- though qualifying for that rate requires the property to actually be the owner's legal residence under SC Code 12-43-220, not simply a lightly-used vacation home. None of these figures substitutes for an actual county tax estimate, actual insurance quotes, and an actual town utility-account setup for a specific parcel, but together they give a far more honest starting budget than the bare purchase-price headline alone.