Map-style illustration of high-humidity U.S. regions prone to indoor mold

Mold by Region

Mold by Region & Finding Help Near You

Mold risk is largely a moisture story, and moisture varies by climate. These guides cover the states and regions where indoor mold is most common, plus how to find and vet trustworthy testing, remediation and mold-literate medical help near you — without falling for hype. Wherever you live, the response starts the same way: find the water and fix it.

Regional guide 8 min

Mold in Florida

Why Florida’s heat, humidity, rain and hurricanes make it one of the highest mold-risk states — and the year-round steps that actually keep homes dry.

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Regional guide 8 min

Mold in Texas

From the humid Gulf Coast to flood-prone cities and the dry west, Texas has several mold climates. Here is what raises risk in each and how to stay dry.

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Regional guide 7 min

Mold in Louisiana

Louisiana’s heat, humidity, hurricanes and low elevation make mold a constant concern. Here is what drives it and how to protect historic and modern homes.

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Regional guide 7 min

Mold in Georgia

Georgia’s humid summers, red-clay soils and basements create distinct mold risks. Here is what to watch and how to keep homes across the state dry.

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Regional guide 6 min

Mold in Alabama

Alabama’s humid climate, heavy rainfall and storm activity keep mold risk high. Here is what drives it and how to keep homes dry year-round.

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Regional guide 6 min

Mold in Mississippi

Mississippi’s high humidity, heavy rain and Gulf exposure make it a top mold-risk state. Here is what drives it and how to keep homes dry.

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Regional guide 7 min

Mold in California

California’s many climates — coastal marine layer, rainy north, dry inland — create very different mold risks. Here is what matters where you live.

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Regional guide 6 min

Mold in Arizona

Arizona’s dry desert climate keeps everyday mold risk low, but AC condensation, monsoon storms and evaporative coolers create real exceptions.

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How to find help 6 min

Finding Mold Testing Near You

How to find, compare and choose mold testing near you — what the different tests do, what to ask, and how to avoid conflicts of interest.

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How to find help 6 min

Finding a Mold-Literate Doctor Near You

How to find and evaluate a clinician who takes mold and environmental exposures seriously — what to look for, what to ask, and what red flags to avoid.

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How to find help 6 min

Finding Mold Remediation Near You

How to find and vet a mold remediation contractor near you — when you need one, what a proper job looks like, and how to avoid being oversold.

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