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Myrtle Beach, SC · Horry County

Water Risk Profile — ZIP 29581

Flood risk, local cost data, climate factors, and insurance context for your ZIP code.

Flood Risk

High

Cost Range

$1,725–$9,775

Avg Response

42 min

NFIP

State participates

Local Climate & Risk Factors

Myrtle Beach area water damage risk includes South Carolina's Atlantic hurricane exposure and intense subtropical rainfall. The Lowcountry and coastal plain face dual threats from storm surge and hurricane rainfall flooding. Midlands communities face river flooding from tributaries of the Congaree, Wateree, and Pee Dee Rivers. Upstate SC (Greenville, Spartanburg) receives 50+ inches of annual rainfall with thunderstorm-driven flash floods in summer. South Carolina's clay-rich soils create hydrostatic pressure challenges for basement and crawl space construction.

Flood-prone areas: The Market Common neighborhood, built on the former Myrtle Beach Air Force Base, sits on relatively flat land with limited natural drainage and has experienced significant flooding during tropical systems including Hurricane Florence. Atlantic Beach and the low-lying sections of Ocean Drive in North Myrtle Beach are especially exposed to combined storm surge and Intracoastal backwater flooding, with many properties having flooded in multiple named storm events.

Insurance tip: In Horry County, private flood insurance carriers have begun withdrawing or dramatically increasing premiums in high-risk coastal zones — get competing quotes from at least two private flood insurers alongside the NFIP before your renewal date, as one may offer substantially lower rates for your specific elevation certificate.

Water Category Cost Table — Myrtle Beach, SC

Extraction & drying cost per square foot by IICRC water category

Water Category$/sq ft
Category 1 — Clean

Burst supply line, clean appliance overflow

$3.15–$7.74
Category 2 — Gray

Dishwasher, washing machine, toilet bowl (no feces)

$7.74–$9.37
Category 3 — Black

Sewage backup, floodwater, toilet overflow with feces

$11–$13.86

Estimates exclude reconstruction (drywall, flooring replacement). National benchmarks: Cat 1 $3.75–$4.25, Cat 2 $4.10–$6.50, Cat 3 $7–$7.50/sq ft — adjusted for Myrtle Beach market (3.712.6/sq ft range).

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