West Virginia Cities Ranked by Indoor Radon Levels
Measured averages from Airthings devices across West Virginia, USA. Action level: 4 pCi/L — the threshold at which remediation is recommended.
Moorefield has the highest measured indoor radon in West Virginia at 10.3 pCi/L, based on Airthings measurements across 27 cities.
Updated August 16, 2026
Highest city
10.3pCi/L
Moorefield
West Virginia city average
3.8pCi/L
across 27 cities
Above action level
12/ 27
cities
| # | Location | Avg level | Monitors | vs action level |
|---|---|---|---|---|
| 1 | Moorefield | 10.3 pCi/L | 7 | 2.6× over |
| 2 | Cheat Lake | 5.5 pCi/L | 13 | 1.4× over |
| 3 | Inwood | 5.5 pCi/L | 20 | 1.4× over |
| 4 | Kingwood | 5.3 pCi/L | 7 | 1.3× over |
| 5 | Bolivar | 5.3 pCi/L | 18 | 1.3× over |
| 6 | Shepherdstown | 5.0 pCi/L | 20 | 1.3× over |
| 7 | Charles Town | 4.9 pCi/L | 29 | 1.2× over |
| 8 | Martinsburg | 4.8 pCi/L | 60 | 1.2× over |
| 9 | Marlinton | 4.6 pCi/L | 7 | 1.2× over |
| 10 | Keyser | 4.3 pCi/L | 6 | 1.1× over |
| 11 | Berkeley Springs | 4.1 pCi/L | 11 | 1.0× over |
| 12 | Bethlehem | 4.1 pCi/L | 10 | 1.0× over |
| ✓ Below EPA action level (4 pCi/L) | ||||
| 13 | Brookhaven | 3.8 pCi/L | 17 | 1.0× under |
| 14 | Lewisburg | 3.8 pCi/L | 6 | 0.9× under |
| 15 | Ranson | 2.9 pCi/L | 8 | 0.7× under |
| 16 | Bridgeport | 2.9 pCi/L | 17 | 0.7× under |
| 17 | Pleasant Valley | 2.7 pCi/L | 9 | 0.7× under |
| 18 | Vienna | 2.6 pCi/L | 9 | 0.7× under |
| 19 | Morgantown | 2.6 pCi/L | 32 | 0.7× under |
| 20 | Bethany | 2.6 pCi/L | 14 | 0.6× under |
| 21 | Wheeling | 2.5 pCi/L | 6 | 0.6× under |
| 22 | Charleston | 2.5 pCi/L | 21 | 0.6× under |
| 23 | Shannondale | 2.4 pCi/L | 25 | 0.6× under |
| 24 | Elkins | 2.4 pCi/L | 8 | 0.6× under |
| 25 | Washington | 2.2 pCi/L | 6 | 0.5× under |
| 26 | South Charleston | 1.8 pCi/L | 7 | 0.5× under |
| 27 | Star City | 1.8 pCi/L | 9 | 0.4× under |