What EPA's radon map says about Suffolk city

EPA's own radon map rates Suffolk city zone 3 - low potential, predicting a county-wide average indoor level below 2 pCi/L. Nationally, Suffolk city ranks higher in radon potential than 26% of rated counties (the 26th percentile).

How Suffolk city compares

About 103,105 people live in Suffolk city, Virginia, spread over 399.17 square miles. That works out to roughly 258 people per square mile. Among counties sharing Suffolk city's EPA zone, it outranks 79% of them by population.

Why the zone isn't the answer by itself

A Zone 3 county like Suffolk city is predicted closer to the 0.4 pCi/L typical outdoors than to EPA's 4 pCi/L action level. A Zone 3 rating means Suffolk city'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 Suffolk city

Mitigation cost doesn't depend on Suffolk city'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 Virginia's state radon program

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

More on how this number was built

Suffolk city's zone, rank and region all trace back to named EPA and Census sources — the methodology guide lists exactly which ones. Whatever zone Suffolk city carries, the zone explainer covers what it does and doesn't tell you about any one house.