Is Harrisonburg city, VA a radon risk area?

EPA's own radon map rates Harrisonburg city zone 1 - highest potential, predicting a county-wide average indoor level above 4 pCi/L. Nationally that's the 90th percentile for radon potential — Harrisonburg city outranks 90% of every county EPA has rated.

How Harrisonburg city compares

About 51,164 people live in Harrisonburg city, Virginia, spread over 17.336 square miles. That works out to roughly 2,951 people per square mile. Rank 311 by population within its EPA zone puts Harrisonburg city at the 71st percentile among zone peers.

Zone vs. an actual test

Outdoor air nationally averages about 0.4 pCi/L, indoor air about 1.3 pCi/L — Harrisonburg city's Zone 1 prediction clears both of those and EPA's fix-it threshold besides. Some Harrisonburg city homes will test comfortably under the action level despite the county's Zone 1 rating — the only way to know which kind of home you have is an actual test.

Next steps for a home in Harrisonburg city

Nothing about Harrisonburg city's EPA zone changes the mitigation number: $800–$2,500 nationally (around $1,200 typical), set by the house's foundation rather than the county it sits in — and only relevant once a test actually clears 4 pCi/L.

Find Virginia's state radon program

Harrisonburg city's test kit answers today; a Airthings radon monitor keeps answering for Harrisonburg city 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

The methodology guide shows exactly which EPA and Census sources feed Harrisonburg city's numbers. The guide to what a radon zone actually means covers why testing matters in every zone, not just Zone 1.