Is Tippah County, MS a radon risk area?

EPA's own radon map rates Tippah County zone 3 - low potential, predicting a county-wide average indoor level below 2 pCi/L. That puts Tippah County in the 14th percentile nationally for radon potential — higher than 14% of the counties EPA has rated.

How Tippah County compares

About 21,423 people live in Tippah County, Mississippi, spread over 457.822 square miles. Averaged across its land area, Tippah County runs about 47 people per square mile. Rank 592 by population within its EPA zone puts Tippah County at the 43rd percentile among zone peers. Geologically, Tippah County is grouped into EPA Region 4 alongside 735 other counties that share its rock and soil setting.

Zone vs. an actual test

Tippah County's Zone 3 prediction undercuts the roughly 1.3 pCi/L most US homes average, nowhere near EPA's 4 pCi/L threshold for recommending mitigation. Don't read Zone 3 as a pass for Tippah County — EPA's guidance to test every home makes no exception for counties predicted low.

Testing and mitigation in Tippah County

Nothing about Tippah County's EPA zone changes the mitigation number: $800–$2,500 nationally (around $1,200 typical), set by the house's foundation rather than the county it sits in — and only relevant once a test actually clears 4 pCi/L.

Find Mississippi's state radon program

Tippah County's test kit answers today; a Airthings radon monitor keeps answering for Tippah County over time. Affiliate link, RadonZoneCheck earns a commission there, at no extra cost to you. Code RADONZONE-10OFF takes 10% off at checkout.

More on how this number was built

The methodology guide shows exactly which EPA and Census sources feed Tippah County's numbers. If you're unsure why a low zone still deserves a test, the zone explainer covers that directly.