New Mexico Cities Ranked by Indoor Radon Levels
Measured averages from Airthings devices across New Mexico, USA. Action level: 4 pCi/L — the threshold at which remediation is recommended.
Taos has the highest measured indoor radon in New Mexico at 6.3 pCi/L, based on Airthings measurements across 21 cities.
Updated August 16, 2026
Highest city
6.3pCi/L
Taos
New Mexico city average
2.9pCi/L
across 21 cities
Above action level
3/ 21
cities
| # | Location | Avg level | Monitors | vs action level |
|---|---|---|---|---|
| 1 | Taos | 6.3 pCi/L | 17 | 1.6× over |
| 2 | Sandia Heights | 4.2 pCi/L | 125 | 1.1× over |
| 3 | Eldorado at Santa Fe | 4.2 pCi/L | 14 | 1.1× over |
| ✓ Below EPA action level (4 pCi/L) | ||||
| 4 | Arroyo Seco | 3.8 pCi/L | 10 | 0.9× under |
| 5 | Santa Fe | 3.6 pCi/L | 96 | 0.9× under |
| 6 | Agua Fria | 3.5 pCi/L | 31 | 0.9× under |
| 7 | Artesia | 3.5 pCi/L | 6 | 0.9× under |
| 8 | Ponderosa Pine | 3.2 pCi/L | 9 | 0.8× under |
| 9 | Sandia Knolls | 3.2 pCi/L | 22 | 0.8× under |
| 10 | North Valley | 3.1 pCi/L | 17 | 0.8× under |
| 11 | Los Alamos | 3.1 pCi/L | 23 | 0.8× under |
| 12 | Carnuel | 2.7 pCi/L | 54 | 0.7× under |
| 13 | Albuquerque | 2.7 pCi/L | 85 | 0.7× under |
| 14 | Placitas | 2.7 pCi/L | 11 | 0.7× under |
| 15 | White Rock | 2.2 pCi/L | 9 | 0.5× under |
| 16 | Corrales | 1.8 pCi/L | 6 | 0.5× under |
| 17 | Paradise Hills | 1.3 pCi/L | 8 | 0.3× under |
| 18 | Rio Rancho | 1.3 pCi/L | 16 | 0.3× under |
| 19 | Lee Acres | 1.3 pCi/L | 6 | 0.3× under |
| 20 | Dona Ana | 1.2 pCi/L | 7 | 0.3× under |
| 21 | Sunland Park | 0.9 pCi/L | 6 | 0.2× under |