Mississippi climate zones
Mississippi’s 82 counties fall in 2 IECC 2021 climate zones: 2A (6), 3A (76).
Zone 2A: hot-humid
Attic target R49 (ENERGY STAR)George County (Hot-humid) · Hancock County (Hot-humid) · Harrison County (Hot-humid) · Jackson County (Hot-humid) · Pearl River County (Hot-humid) · Stone County (Hot-humid)
Zone 3A: warm-humid
Attic target R49 (ENERGY STAR)Adams County (Hot-humid) · Alcorn County (Mixed-humid) · Amite County (Hot-humid) · Attala County (Mixed-humid) · Benton County (Mixed-humid) · Bolivar County (Mixed-humid) · Calhoun County (Mixed-humid) · Carroll County (Mixed-humid) · Chickasaw County (Mixed-humid) · Choctaw County (Mixed-humid) · Claiborne County (Hot-humid) · Clarke County (Mixed-humid) · Clay County (Mixed-humid) · Coahoma County (Mixed-humid) · Copiah County (Hot-humid) · Covington County (Hot-humid) · DeSoto County (Mixed-humid) · Forrest County (Hot-humid) · Franklin County (Hot-humid) · Greene County (Hot-humid) · Grenada County (Mixed-humid) · Hinds County (Hot-humid) · Holmes County (Mixed-humid) · Humphreys County (Mixed-humid) · Issaquena County (Mixed-humid) · Itawamba County (Mixed-humid) · Jasper County (Mixed-humid) · Jefferson County (Hot-humid) · Jefferson Davis County (Hot-humid) · Jones County (Hot-humid) · Kemper County (Mixed-humid) · Lafayette County (Mixed-humid) · Lamar County (Hot-humid) · Lauderdale County (Mixed-humid) · Lawrence County (Hot-humid) · Leake County (Mixed-humid) · Lee County (Mixed-humid) · Leflore County (Mixed-humid) · Lincoln County (Hot-humid) · Lowndes County (Mixed-humid) · Madison County (Mixed-humid) · Marion County (Hot-humid) · Marshall County (Mixed-humid) · Monroe County (Mixed-humid) · Montgomery County (Mixed-humid) · Neshoba County (Mixed-humid) · Newton County (Mixed-humid) · Noxubee County (Mixed-humid) · Oktibbeha County (Mixed-humid) · Panola County (Mixed-humid) · Perry County (Hot-humid) · Pike County (Hot-humid) · Pontotoc County (Mixed-humid) · Prentiss County (Mixed-humid) · Quitman County (Mixed-humid) · Rankin County (Hot-humid) · Scott County (Mixed-humid) · Sharkey County (Mixed-humid) · Simpson County (Hot-humid) · Smith County (Hot-humid) · Sunflower County (Mixed-humid) · Tallahatchie County (Mixed-humid) · Tate County (Mixed-humid) · Tippah County (Mixed-humid) · Tishomingo County (Mixed-humid) · Tunica County (Mixed-humid) · Union County (Mixed-humid) · Walthall County (Hot-humid) · Warren County (Hot-humid) · Washington County (Mixed-humid) · Wayne County (Hot-humid) · Webster County (Mixed-humid) · Wilkinson County (Hot-humid) · Winston County (Mixed-humid) · Yalobusha County (Mixed-humid) · Yazoo County (Mixed-humid)