What EPA's radon map says about Suwannee County

EPA places Suwannee County in Zone 3 - Low Potential — a predicted county-wide average indoor radon level below 2 pCi/L, based on the geology, soil and aerial radioactivity data behind EPA's national map. Rank it against the rest of the country and Suwannee County lands in the 22nd percentile for radon potential.

Suwannee County by the numbers

About 47,536 people live in Suwannee County, Florida, spread over 688.586 square miles. Population density there runs about 69 people per square mile. Among counties sharing Suwannee County's EPA zone, it outranks 66% of them by population. Suwannee County falls in EPA Radon Region 4, one of 736 counties nationally EPA assigns to that same geologic province.

Zone vs. an actual test

At Zone 3, Suwannee County's predicted county average is under the national indoor average (~1.3 pCi/L) and well below EPA's 4 pCi/L action level — outdoor air nationally runs about 0.4 pCi/L for comparison. A Zone 3 label describes Suwannee County's average, not any one basement or slab in it — testing is still the only way an individual homeowner actually finds out.

Next steps for a home in Suwannee County

Mitigation cost doesn't depend on Suwannee 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 Florida's state radon program

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

Suwannee County's zone, rank and region all trace back to named EPA and Census sources — the methodology guide lists exactly which ones. If you're unsure why a low zone still deserves a test, the zone explainer covers that directly.