Newport News city, VA: EPA's radon zone, explained

Newport News city is mapped as Zone 3 - Low Potential by EPA — meaning the county-wide average indoor level is predicted below 2 pCi/L. Nationally, Newport News city ranks higher in radon potential than 29% of rated counties (the 29th percentile).

How Newport News city compares

Newport News city, Virginia is home to about 183,056 people across 68.996 square miles. That works out to roughly 2,653 people per square mile. By population, Newport News city is the 139th largest of every county sharing its EPA zone — the 87th percentile by population within that zone.

Why the zone isn't the answer by itself

At Zone 3, Newport News city'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 Newport News city'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 Newport News city

For a Newport News city homeowner, the order is simple: test first, since a kit costs a small fraction of what mitigation would. Only if the result clears 4 pCi/L does a system — typically $800–$2,500, about $1,200 for a common install — become worth pricing out.

Find Virginia's state radon program

For Newport News city, an ongoing number beats a one-time test - a Airthings radon monitor tracks Newport News city'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 Newport News city's figures come from

The methodology guide shows exactly which EPA and Census sources feed Newport News city's numbers. If you're unsure why a low zone still deserves a test, the zone explainer covers that directly.