What EPA's radon map says about Tipton County

EPA's own radon map rates Tipton County zone 3 - low potential, predicting a county-wide average indoor level below 2 pCi/L. That puts Tipton County in the 23rd percentile nationally for radon potential — higher than 23% of the counties EPA has rated.

Tipton County by the numbers

About 62,187 people live in Tipton County, Tennessee, spread over 455.611 square miles. Averaged across its land area, Tipton County runs about 136 people per square mile. Among counties sharing Tipton County's EPA zone, it outranks 71% of them by population. EPA's geology-based Region 4 groups Tipton County with 735 other counties nationally sharing its underlying rock and soil profile.

Zone vs. an actual test

Tipton 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 Tipton County — EPA's guidance to test every home makes no exception for counties predicted low.

Next steps for a home in Tipton County

Mitigation cost doesn't depend on Tipton County's zone — it depends on the house's foundation. A typical system runs $800–$2,500 (about $1,200 typical), and testing first is what tells you whether that's needed at all.

Find Tennessee's state radon program

Tipton County's test kit answers today; a Airthings radon monitor keeps answering for Tipton 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

Tipton County's zone, rank and region all trace back to named EPA and Census sources — the methodology guide lists exactly which ones. The guide to what a radon zone actually means covers why testing matters in every zone, not just Zone 1.