What EPA's radon map says about Pemiscot County

Pemiscot County is mapped as Zone 3 - Low Potential by EPA — meaning the county-wide average indoor level is predicted below 2 pCi/L. Nationally, Pemiscot County ranks higher in radon potential than 10% of rated counties (the 10th percentile).

Pemiscot County by the numbers

About 14,407 people live in Pemiscot County, Missouri, spread over 492.605 square miles. Averaged across its land area, Pemiscot County runs about 29 people per square mile. Among counties sharing Pemiscot County's EPA zone, it outranks 30% of them by population. Geologically, Pemiscot County is grouped into EPA Region 7 alongside 411 other counties that share its rock and soil setting.

Why the zone isn't the answer by itself

Well clear of both the 1.3 pCi/L national indoor average and EPA's 4 pCi/L action level, Pemiscot County's Zone 3 prediction is the low end of the scale. Low doesn't mean zero: EPA's own data shows homes in Zone 3 counties like Pemiscot County testing above the action level often enough that skipping a test isn't the safe assumption.

Testing and mitigation in Pemiscot County

Mitigation cost doesn't depend on Pemiscot 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 Missouri's state radon program

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

More on how this number was built

Every figure on this page traces to EPA's own Map of Radon Zones and Census data, documented in the methodology guide. Whatever zone Pemiscot County carries, the zone explainer covers what it does and doesn't tell you about any one house.