What EPA's radon map says about Lexington city

EPA places Lexington city in Zone 1 - Highest Potential — a predicted county-wide average indoor radon level above 4 pCi/L, based on the geology, soil and aerial radioactivity data behind EPA's national map. Lexington city sits at the 74th percentile nationally for radon potential — above 74 of every 100 rated counties.

Lexington city by the numbers

About 7,802 people live in Lexington city, Virginia, spread over 2.499 square miles. Population density there runs about 3,122 people per square mile. Among counties sharing Lexington city's EPA zone, it outranks 23% of them by population.

Zone vs. an actual test

Where the national indoor average runs about 1.3 pCi/L, Lexington city's Zone 1 rating puts its predicted county average above EPA's 4 pCi/L action level itself. EPA's guidance doesn't change because of a Zone 1 label: test the house. What changes is the reason to not put it off in Lexington city specifically.

Testing and mitigation in Lexington city

Mitigation cost doesn't depend on Lexington 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

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

Lexington city'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.