Queen Anne's County, MD Radon Zone Data

Queen Anne's County, MD radon potential

EPA's own radon map rates Queen Anne's County zone 3 - low potential, predicting a county-wide average indoor level below 2 pCi/L. Queen Anne's County sits at the 23rd percentile nationally for radon potential — above 23 of every 100 rated counties.

How Queen Anne's County compares

Queen Anne's County, Maryland is home to about 53,688 people across 371.669 square miles. Averaged across its land area, Queen Anne's County runs about 144 people per square mile. Within its own EPA zone, Queen Anne's County is bigger by population than 69% of the counties that share it. Geologically, Queen Anne's County is grouped into EPA Region 3 alongside 244 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, Queen Anne's County's Zone 3 prediction is the low end of the scale. A Zone 3 rating means Queen Anne's County'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 Queen Anne's County

A short-term test kit is the standard first step and typically costs far less than mitigation itself. If a test comes back at or above 4 pCi/L, a radon mitigation system for a typical home runs roughly $800–$2,500 (around $1,200 for a common single-family install), driven mainly by foundation type, not by county.

Find Maryland's state radon program

For Queen Anne's County, an ongoing number beats a one-time test - a Airthings radon monitor tracks Queen Anne's County's levels over time. RadonZoneCheck earns a commission there, at no extra cost to you. Code RADONZONE-10OFF takes 10% off at checkout.

Where Queen Anne's County's figures come from

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