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Phoenix Mold Data & Charts — Free to Republish

These are original charts we built about mold in the Phoenix metro, drawn from public federal data (NOAA, FEMA, and the U.S. Census Bureau’s American Housing Survey) plus EPA and CDC guidance. They are free for journalists, bloggers, and homeowners to republish in an article, post, or report. We just ask for a visible credit with a link back to the source page. No permission needed, no cost.

Compiled by Nik Crawley, editor and researcher at Mold Pros Phoenix · Updated June 29, 2026

How to use these charts

These charts are free to republish in your article, blog post, or report. We just ask for a visible credit with a link back to the source page. No permission needed, no cost. Each chart below has a one-line description of what it shows and where the data comes from, a preview, and a ready-made embed code. Paste the embed code into your page and the chart and credit go in together.

Prefer to cite the underlying numbers in your own words? Every figure is laid out and sourced on the chart’s linked page, so you can read the method and the original federal source there. Browse all of our free Phoenix mold guides for the full write-ups.

Bar chart comparing Phoenix-area vs. U.S. household mold-report rates, from the American Housing Survey.

Phoenix vs. U.S. mold prevalence

How often Phoenix-area homes report mold compared with the U.S. as a whole.

Data source: U.S. Census Bureau / American Housing Survey (AHS)

Source page: https://moldprosphoenix.com/guides/phoenix-mold-statistics/

Bar chart of Phoenix-area household mold reports broken down by room, from the American Housing Survey.

Phoenix mold reports by room

Which rooms Phoenix-area households report mold in most often.

Data source: U.S. Census Bureau / American Housing Survey (AHS)

Source page: https://moldprosphoenix.com/guides/phoenix-mold-statistics/

Diagram of the five indoor-moisture drivers behind Phoenix mold: AC condensate, monsoon intrusion, slab leaks, over-watering, and evaporative coolers.

The five Phoenix indoor-moisture drivers

The specific moisture sources that let mold grow in desert homes.

Data source: Mold Pros Phoenix, built on EPA moisture guidance

Source page: https://moldprosphoenix.com/guides/phoenix-mold-risk-2026/

Chart of Maricopa County flood-insurance claims by month, from FEMA National Flood Insurance Program data.

Maricopa County flood-insurance claims by month

When Maricopa County flood-insurance claims cluster across the year.

Data source: FEMA (National Flood Insurance Program)

Source page: https://moldprosphoenix.com/guides/desert-mold-paradox/

Chart of modeled monthly air-conditioner condensate output for a Phoenix home, built on NOAA climate data.

Modeled AC condensate output by month

How much water a Phoenix air conditioner is modeled to pull from the air each month.

Data source: Mold Pros Phoenix model, built on NOAA climate normals

Source page: https://moldprosphoenix.com/guides/desert-mold-paradox/

Chart of household plumbing-leak rates by home age, from the American Housing Survey.

Plumbing-leak rate by home age

How reported plumbing-leak rates rise with the age of the home.

Data source: U.S. Census Bureau / American Housing Survey (AHS)

Source page: https://moldprosphoenix.com/guides/older-phoenix-homes-mold-risk/

Chart showing the monsoon season’s share of total annual Phoenix rainfall, from National Weather Service data.

Monsoon share of annual Phoenix rainfall

How much of Phoenix’s yearly rain falls during the monsoon season.

Data source: NOAA / National Weather Service (NWS)

Source page: https://moldprosphoenix.com/guides/mold-in-the-desert/

Timeline diagram of how quickly mold grows on a wet surface, marking the EPA 24 to 48 hour window.

Mold growth timeline

How quickly mold can start to grow on a wet surface, including the EPA 24–48 hour window.

Data source: EPA guidance

Source page: https://moldprosphoenix.com/how-long-does-it-take-for-mold-to-grow/

A note on the data

Each chart is built from public data we name on its page: the U.S. Census Bureau’s American Housing Survey, FEMA’s flood-insurance records, and NOAA / National Weather Service climate data, alongside published EPA and CDC guidance. We do the chart-making; the underlying numbers are public. The figures, methods, and full citations live on each chart’s linked page, not here, so you can check the original source before you publish.

If a chart helped your story, a link back is all we ask. Questions about a chart, the method, or a format you need? Get in touch.