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 31 cities.
Updated September 28, 2026
Highest city
10.3pCi/L
Moorefield
West Virginia city average
3.7pCi/L
across 31 cities
Above action level
12/ 31
cities
| # | Location | Avg level | vs action level |
|---|---|---|---|
| 1 | Moorefield | 10.3 pCi/L | 2.6× over |
| 2 | Cheat Lake | 5.5 pCi/L | 1.4× over |
| 3 | Inwood | 5.4 pCi/L | 1.3× over |
| 4 | Kingwood | 5.3 pCi/L | 1.3× over |
| 5 | Bolivar | 5.3 pCi/L | 1.3× over |
| 6 | Charles Town | 4.9 pCi/L | 1.2× over |
| 7 | Martinsburg | 4.8 pCi/L | 1.2× over |
| 8 | Marlinton | 4.6 pCi/L | 1.2× over |
| 9 | Shepherdstown | 4.6 pCi/L | 1.1× over |
| 10 | Keyser | 4.3 pCi/L | 1.1× over |
| 11 | Bethlehem | 4.1 pCi/L | 1.0× over |
| 12 | Berkeley Springs | 4.0 pCi/L | 1.0× over |
| ✓ Below EPA action level (4 pCi/L) | |||
| 13 | Ranson | 4.0 pCi/L | 1.0× under |
| 14 | Brookhaven | 3.8 pCi/L | 1.0× under |
| 15 | Lewisburg | 3.8 pCi/L | 0.9× under |
| 16 | Weirton Heights | 3.5 pCi/L | 0.9× under |
| 17 | Bridgeport | 2.9 pCi/L | 0.7× under |
| 18 | Weirton | 2.9 pCi/L | 0.7× under |
| 19 | Pleasant Valley | 2.7 pCi/L | 0.7× under |
| 20 | Morgantown | 2.6 pCi/L | 0.7× under |
| 21 | Vienna | 2.6 pCi/L | 0.7× under |
| 22 | Bethany | 2.6 pCi/L | 0.6× under |
| 23 | Wheeling | 2.5 pCi/L | 0.6× under |
| 24 | Charleston | 2.5 pCi/L | 0.6× under |
| 25 | Shannondale | 2.4 pCi/L | 0.6× under |
| 26 | Elkins | 2.3 pCi/L | 0.6× under |
| 27 | Weston | 2.3 pCi/L | 0.6× under |
| 28 | Washington | 2.2 pCi/L | 0.5× under |
| 29 | Star City | 2.0 pCi/L | 0.5× under |
| 30 | Dunbar | 1.9 pCi/L | 0.5× under |
| 31 | South Charleston | 1.8 pCi/L | 0.5× under |