Lauderdale County, TN radon potential

Lauderdale County is mapped as Zone 3 - Low Potential by EPA — meaning the county-wide average indoor level is predicted below 2 pCi/L. Nationally that's the 16th percentile for radon potential — Lauderdale County outranks 16% of every county EPA has rated.

Lauderdale County by the numbers

Lauderdale County, Tennessee is home to about 24,630 people across 471.895 square miles. Averaged across its land area, Lauderdale County runs about 52 people per square mile. Within its own EPA zone, Lauderdale County is bigger by population than 47% of the counties that share it. Lauderdale County falls in EPA Radon Region 4, one of 736 counties nationally EPA assigns to that same geologic province.

Why the zone isn't the answer by itself

Lauderdale 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. A Zone 3 rating means Lauderdale County's county-wide average is predicted low, but EPA is explicit that a meaningful share of homes in low-potential zones still test above the action level — a low zone is not a reason to skip testing.

Testing and mitigation in Lauderdale County

A short-term test kit is the standard first step and typically costs far less than mitigation itself. If a test comes back at or above 4 pCi/L, a radon mitigation system for a typical home runs roughly $800–$2,500 (around $1,200 for a common single-family install), driven mainly by foundation type, not by county.

Find Tennessee's state radon program

For Lauderdale County, an ongoing number beats a one-time test - a Airthings radon monitor tracks Lauderdale County's levels over time. RadonZoneCheck earns a commission there, at no extra cost to you. Use code RADONZONE-10OFF at checkout for 10% off.

Where Lauderdale County's figures come from

Every figure on this page traces to EPA's own Map of Radon Zones and Census data, documented in the methodology guide. If you're unsure why a low zone still deserves a test, the zone explainer covers that directly.