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Gulfport, MS · Harrison County

Water Risk Profile — ZIP 39501

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

Gulfport area water damage risks include Mississippi's tropical weather season and the state's high annual rainfall. The Mississippi River corridor (Natchez, Vicksburg, Greenville) faces river flooding from snowmelt events far upstream in the Missouri-Mississippi watershed — spring floods reach Zone AE designations in many river communities. Mississippi's humidity creates conditions where pipe leaks that go undetected for even 24 hours can establish mold colonies. Central heating failures during rare Mississippi cold events (below 20°F) can cause rapid pipe freeze damage in homes built without the freeze-resistance measures common in northern states.

Flood-prone areas: The beachfront corridor along US-90 from Pass Road to Veterans Avenue represents Gulfport's highest storm surge exposure zone, and many structures rebuilt post-Katrina remain vulnerable to future major storms with surge exceeding their base flood elevation. The Sunkist Country Club neighborhood, located along Bayou Bernard several miles inland, experienced significant flooding from both bayou overflow and stormwater backflow during Katrina and has recorded subsequent flooding during moderate tropical events.

Insurance tip: Gulfport homeowners must carry both NFIP flood insurance and a separate windstorm policy through the Mississippi Windstorm Underwriting Association (MWUA), because standard homeowners policies in Harrison County explicitly exclude both wind and flood, and the two coverages must be purchased separately to be fully protected against a single hurricane event.

Water Category Cost Table — Gulfport, MS

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 Gulfport market (3.712.6/sq ft range).

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