EPA Zone Data 2026

VI Radon Levels

View EPA radon zone classifications for every county in VI. Select your county to see detailed risk data, testing recommendations, and mitigation cost estimates.

Zone 1
High Risk

Zone 2
Moderate

Zone 3
Low Risk

St. Croix Island Zone 0

St. John Island Zone 0

St. Thomas Island Zone 0

Already tested? Get your itemized mitigation cost estimate.

View VI Mitigation Cost Estimates →