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McKinney, TX · Collin County

Water Risk Profile — ZIP 75072

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

Flood Risk

Medium

Cost Range

$1,500–$8,500

Avg Response

42 min

NFIP

State participates

Local Climate & Risk Factors

McKinney area water damage risk includes Texas's variable climate threats. Dallas-Fort Worth's Blackland Prairie clay soils create the highest slab leak frequency in the country — clay expansion and contraction stress post-tension slab foundations, causing supply line failures. Houston and coastal Texas face hurricane flooding (Harvey deposited 60 inches in Harris County in 2017), bayou system flooding, and combined sewer overflow. Texas homeowners should document any water damage event carefully — insurers in Texas have specific prompt-pay obligations and the state has one of the strongest homeowner enforcement mechanisms through the Texas Insurance Code.

Flood-prone areas: Stonebridge Ranch's extensive lake and pond network creates flooding risk for adjacent homes when the interconnected water features overflow during McKinney's intense spring storm season — the system was designed for average rainfall, not the 4–6 inch events that DFW supercells regularly produce. Old Town McKinney's historic homes retain original early 1900s supply and drain lines, while the Blackland Prairie clay beneath every neighborhood in the city drives slab leak rates that rank among the highest in the nation.

Insurance tip: Texas homeowner policies vary widely by carrier on clay-soil slab leak coverage — many contain an 'earth movement' exclusion insurers use to deny slab leak claims in McKinney's Blackland Prairie conditions; homeowners should add a plumbing endorsement and a foundation coverage rider to their policy before a claim occurs, and review the policy language carefully at renewal.

Water Category Cost Table — McKinney, TX

Extraction & drying cost per square foot by IICRC water category

Water Category$/sq ft
Category 1 — Clean

Burst supply line, clean appliance overflow

$2.72–$6.74
Category 2 — Gray

Dishwasher, washing machine, toilet bowl (no feces)

$6.74–$8.16
Category 3 — Black

Sewage backup, floodwater, toilet overflow with feces

$9.59–$12.1

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 McKinney market (3.211/sq ft range).

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