EPA Zone Data 2026
MS Radon Levels
View EPA radon zone classifications for every county in MS. Select your county to see detailed risk data, testing recommendations, and mitigation cost estimates.
0
Zone 1
High Risk
High Risk
8
Zone 2
Moderate
Moderate
74
Zone 3
Low Risk
Low Risk
Adams
Zone 3
Alcorn
Zone 2
Amite
Zone 3
Attala
Zone 3
Benton
Zone 3
Bolivar
Zone 3
Calhoun
Zone 3
Carroll
Zone 3
Chickasaw
Zone 2
Choctaw
Zone 3
Claiborne
Zone 3
Clarke
Zone 3
Clay
Zone 2
Coahoma
Zone 3
Copiah
Zone 3
Covington
Zone 3
DeSoto
Zone 3
Forrest
Zone 3
Franklin
Zone 3
George
Zone 3
Greene
Zone 3
Grenada
Zone 3
Hancock
Zone 3
Harrison
Zone 3
Hinds
Zone 3
Holmes
Zone 3
Humphreys
Zone 3
Issaquena
Zone 3
Itawamba
Zone 3
Jackson
Zone 3
Jasper
Zone 3
Jefferson
Zone 3
Jefferson Davis
Zone 3
Jones
Zone 3
Kemper
Zone 3
Lafayette
Zone 3
Lamar
Zone 3
Lauderdale
Zone 3
Lawrence
Zone 3
Leake
Zone 3
Lee
Zone 2
Leflore
Zone 3
Lincoln
Zone 3
Lowndes
Zone 2
Madison
Zone 3
Marion
Zone 3
Marshall
Zone 3
Monroe
Zone 3
Montgomery
Zone 3
Neshoba
Zone 3
Newton
Zone 3
Noxubee
Zone 2
Oktibbeha
Zone 3
Panola
Zone 3
Pearl River
Zone 3
Perry
Zone 3
Pike
Zone 3
Pontotoc
Zone 2
Prentiss
Zone 3
Quitman
Zone 3
Rankin
Zone 3
Scott
Zone 3
Sharkey
Zone 3
Simpson
Zone 3
Smith
Zone 3
Stone
Zone 3
Sunflower
Zone 3
Tallahatchie
Zone 3
Tate
Zone 3
Tippah
Zone 3
Tishomingo
Zone 3
Tunica
Zone 3
Union
Zone 2
Walthall
Zone 3
Warren
Zone 3
Washington
Zone 3
Wayne
Zone 3
Webster
Zone 3
Wilkinson
Zone 3
Winston
Zone 3
Yalobusha
Zone 3
Yazoo
Zone 3
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