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Lafayette, LA · Lafayette Parish County

Water Risk Profile — ZIP 70503

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

Flood Risk

High

Cost Range

$2,400–$14,000

Avg Response

44 min

NFIP

State participates

Local Climate & Risk Factors

Lafayette sits in the heart of Cajun country in south-central Louisiana, 50 miles north of the Gulf Coast. The city lies in the flat coastal plain of the Vermilion and Bayou Teche watersheds. August 2016 flooding — the 'unnamed storm' — caused catastrophic flooding across the Lafayette metropolitan area, damaging 140,000+ homes with no federal disaster declaration initially. Hurricane Ida (2021) and Delta (2020) also caused significant damage. Louisiana's extreme heat and humidity (summer feels like 110°F+) means any water intrusion triggers rapid mold growth within 24 hours. The city sits on former marshland with minimal natural drainage relief.

Flood-prone areas: Freetown-Port Rico and south Lafayette have highest flood risk. River Ranch and Youngsville (south suburb) have newer elevation and better drainage. Acadiana Mall corridor has commercial construction stock.

Insurance tip: Lafayette homeowners with federally-backed mortgages in Zone AE are required to carry NFIP flood insurance. The 2016 unnamed storm expanded flood zone awareness significantly — even properties outside Zone AE flooded. Private flood insurance may offer better rates than NFIP for lower-risk properties.

Water Category Cost Table — Lafayette, LA

Extraction & drying cost per square foot by IICRC water category

Water Category$/sq ft
Category 1 — Clean

Burst supply line, clean appliance overflow

$4.08–$10.83
Category 2 — Gray

Dishwasher, washing machine, toilet bowl (no feces)

$10.83–$13.11
Category 3 — Black

Sewage backup, floodwater, toilet overflow with feces

$15.39–$19.8

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 Lafayette market (4.818/sq ft range).

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