Delaware Radon Levels
0Zone 1 (High)
1Zone 2 (Moderate)
2Zone 3 (Low)
No counties in Delaware are classified as Zone 1 (highest risk), but 1 counties are Zone 2 (moderate potential). The EPA recommends testing all homes regardless of zone classification, as elevated radon can occur in any zone.
| County | EPA Zone | Risk Level |
|---|---|---|
| Kent County | Zone 3 | Lowest Potential |
| New Castle County | Zone 2 | Moderate Potential |
| Sussex County | Zone 3 | Lowest Potential |