RANKING · 2022 ACS · 500 SHOWN OF 3,144

Most extreme-heat days, US counties

US counties ranked by the number of days in 2022 that reached at least 90°F, from the heat-exposure data (NOAA North American Regional Reanalysis) published with the Census Bureau's experimental Community Resilience Estimates for Heat.

All statesAll rankings

RELATEDMost socially vulnerable Least socially vulnerable Most socially vulnerable people Most homes without air conditioning Most homes without air conditioning (total)Most vulnerable to extreme heat

RANKPLACESTATEPOPEXTREME-HEAT DAYS (90°F+)VS –

1001Crawford County, IAIA16,23716–

1002Decatur County, IAIA7,65516–

1003Harrison County, IAIA14,62316–

1004Monona County, IAIA8,53916–

1005Page County, IAIA14,85616–

1006Pottawattamie County, IAIA92,99616–

1007Taylor County, IAIA5,83516–

1008Lafourche Parish, LALA95,50516–

1009Livingston Parish, LALA155,03616–

1010Orleans Parish, LALA362,15416–

1011St. Charles Parish, LALA50,58616–

1012St. John the Baptist Parish, LALA39,87516–

1013Washington Parish, LALA44,93716–

1014Rock County, MNMN9,52416–

1015Covington County, MSMS17,89816–

1016Grenada County, MSMS20,86816–

1017Hancock County, MSMS46,87316–

1018Jefferson Davis County, MSMS10,94116–

1019Jones County, MSMS66,49616–

1020Kemper County, MSMS8,60016–

1021Lafayette County, MSMS59,59716–

1022Lawrence County, MSMS11,81916–

1023Leake County, MSMS21,66216–

1024Leflore County, MSMS25,68616–

1025Neshoba County, MSMS28,73216–

1026Noxubee County, MSMS9,79816–

1027Oktibbeha County, MSMS51,89616–

1028Winston County, MSMS17,47316–

1029Yazoo County, MSMS22,94716–

1030Caldwell County, MOMO9,01216–

1031Chariton County, MOMO7,37716–

1032Daviess County, MOMO8,55816–

1033DeKalb County, MOMO9,79516–

1034Gentry County, MOMO6,38416–

1035Harrison County, MOMO8,28116–

1036Jasper County, MOMO127,42816–

1037Johnson County, MOMO56,67016–

1038Lawrence County, MOMO39,40116–

1039Livingston County, MOMO14,70816–

1040Mercer County, MOMO3,40416–

1041Newton County, MOMO62,26316–

1042Putnam County, MOMO4,54616–

1043Randolph County, MOMO24,51316–

1044Schuyler County, MOMO4,14016–

1045Scotland County, MOMO4,79616–

1046Stone County, MOMO32,50316–

1047Sullivan County, MOMO5,73816–

1048Worth County, MOMO1,91416–

1049Boone County, NENE5,35516–

1050Cedar County, NENE8,37316–

1051Grant County, NENE56116–

1052Holt County, NENE10,06716–

1053Otoe County, NENE16,53116–

1054Pierce County, NENE7,37816–

1055Sheridan County, NENE4,80916–

1056Thurston County, NENE6,75216–

1057Wayne County, NENE10,02016–

1058Wheeler County, NENE78916–

1059Adair County, OKOK19,82816–

1060Cherokee County, OKOK49,19616–

1061Lake County, SDSD10,99316–

1062McCook County, SDSD5,96416–

1063Minnehaha County, SDSD212,69116–

1064Moody County, SDSD6,63216–

1065Spink County, SDSD6,15516–

1066Fayette County, TNTN45,07116–

1067Hardeman County, TNTN25,27416–

1068Autauga County, ALAL61,92015–

1069Choctaw County, ALAL11,90415–

1070Hale County, ALAL15,19415–

1071Marengo County, ALAL18,31115–

1072Pickens County, ALAL18,22115–

1073Sumter County, ALAL11,58815–

1074Marion County, ARAR17,59315–

1075Searcy County, ARAR7,84815–

1076San Benito County, CACA70,08215–

1077Santa Cruz County, CACA258,85215–

1078Bay County, FLFL204,47915–

1079Orange County, FLFL1,528,00215–

1080Chattahoochee County, GAGA8,46515–

1081Stewart County, GAGA4,63115–

1082Adams County, ILIL64,26715–

1083Pike County, ILIL14,23115–

1084Plymouth County, IAIA25,69715–

1085Sioux County, IAIA36,77415–

1086Woodbury County, IAIA106,64915–

1087Terrebonne Parish, LALA104,16315–

1088Attala County, MSMS17,10015–

1089Calhoun County, MSMS12,64315–

1090Carroll County, MSMS9,22615–

1091Choctaw County, MSMS8,04815–

1092Clarke County, MSMS15,10215–

1093Copiah County, MSMS27,49715–

1094Harrison County, MSMS217,13615–

1095Holmes County, MSMS15,46515–

1096Jasper County, MSMS15,78515–

1097Lauderdale County, MSMS70,31715–

1098Madison County, MSMS116,29815–

1099Marion County, MSMS24,00115–

1100Marshall County, MSMS34,65415–

1101Montgomery County, MSMS9,35415–

1102Newton County, MSMS20,96015–

1103Panola County, MSMS32,69115–

1104Pearl River County, MSMS59,36315–

1105Pike County, MSMS38,71215–

1106Rankin County, MSMS162,18115–

1107Scott County, MSMS28,07315–

1108Simpson County, MSMS25,49815–

1109Smith County, MSMS13,99115–

1110Stone County, MSMS19,65415–

1111Tate County, MSMS28,72515–

1112Walthall County, MSMS13,92815–

1113Wayne County, MSMS19,80715–

1114Webster County, MSMS10,16715–

1115Yalobusha County, MSMS12,37515–

1116Adair County, MOMO25,68415–

1117Benton County, MOMO20,53615–

1118Boone County, MOMO191,74615–

1119Carter County, MOMO5,41815–

1120Cedar County, MOMO14,88815–

1121Dade County, MOMO7,80415–

1122Greene County, MOMO309,28615–

1123Grundy County, MOMO9,74415–

1124Henry County, MOMO22,67115–

1125Hickory County, MOMO9,04415–

1126Knox County, MOMO3,72815–

1127Lewis County, MOMO9,87915–

1128Linn County, MOMO11,81515–

1129Macon County, MOMO15,19015–

1130Marion County, MOMO28,52515–

1131Monroe County, MOMO8,95915–

1132Oregon County, MOMO8,70915–

1133Ozark County, MOMO9,17215–

1134St. Clair County, MOMO9,97615–

1135Shelby County, MOMO5,87015–

1136Dakota County, NENE21,68715–

1137Dixon County, NENE5,60215–

1138Loup County, NENE57015–

1139Otero County, NMNM70,36815–

1140Chatham County, NCNC85,11115–

1141Edgecombe County, NCNC49,12115–

1142Halifax County, NCNC46,53415–

1143Montgomery County, NCNC26,40315–

1144Northampton County, NCNC16,49115–

1145Randolph County, NCNC149,51615–

1146Warren County, NCNC18,89815–

1147Clay County, SDSD15,03115–

1148Haywood County, TNTN17,04215–

1149Iron County, UTUT67,14115–

1150Salt Lake County, UTUT1,220,91615–

1151Brunswick County, VAVA15,72715–

1152Greensville County, VAVA11,18115–

1153Nottoway County, VAVA15,79615–

1154Emporia, VAVA5,44715–

1155Mobile County, ALAL411,65814–

1156Shasta County, CACA181,64814–

1157Liberty County, FLFL8,03514–

1158Madison County, FLFL18,75914–

1159Osceola County, FLFL481,71814–

1160Polk County, FLFL874,79014–

1161Santa Rosa County, FLFL211,11514–

1162Suwannee County, FLFL48,14914–

1163Alexander County, ILIL4,57014–

1164Cherokee County, IAIA11,36914–

1165Henry County, IAIA19,34914–

1166George County, MSMS26,33114–

1167Lincoln County, MOMO66,67614–

1168St. Charles County, MOMO426,49914–

1169St. Louis County, MOMO990,91114–

1170Scott County, MOMO37,97514–

1171Blaine County, NENE45814–

1172Hertford County, NCNC19,01514–

1173Cache County, UTUT145,00014–

1174Amelia County, VAVA13,63214–

1175Appomattox County, VAVA17,17214–

1176Buckingham County, VAVA17,13714–

1177Campbell County, VAVA55,62914–

1178Charlotte County, VAVA11,40114–

1179Chesterfield County, VAVA397,14814–

1180Cumberland County, VAVA10,35214–

1181Dinwiddie County, VAVA28,89614–

1182Fluvanna County, VAVA28,97514–

1183Goochland County, VAVA29,18714–

1184Halifax County, VAVA33,44714–

1185Henrico County, VAVA342,77514–

1186Lunenburg County, VAVA12,05814–

1187Powhatan County, VAVA32,59114–

1188Prince Edward County, VAVA22,39114–

1189Prince George County, VAVA43,93614–

1190Southampton County, VAVA18,11014–

1191Sussex County, VAVA10,75514–

1192Colonial Heights, VAVA18,73814–

1193Danville, VAVA41,64714–

1194Franklin, VAVA8,47814–

1195Hopewell, VAVA23,26114–

1196Petersburg, VAVA33,73414–

1197Richmond, VAVA237,25714–

1198Baldwin County, ALAL267,76113–

1199Talladega County, ALAL81,60313–

1200Johnson County, ARAR26,22513–

1201Butte County, CACA209,21113–

1202Napa County, CACA132,94913–

1203Bradford County, FLFL28,30713–

1204Broward County, FLFL2,013,31713–

1205Charlotte County, FLFL217,21213–

1206Flagler County, FLFL140,36013–

1207Gulf County, FLFL15,94313–

1208Hamilton County, FLFL14,18013–

1209Lake County, FLFL456,06813–

1210Sarasota County, FLFL479,95813–

1211Taylor County, FLFL21,21013–

1212Clarke County, GAGA129,92113–

1213Echols County, GAGA3,68513–

1214Lowndes County, GAGA122,86713–

1215Morgan County, GAGA22,09513–

1216Newton County, GAGA125,58313–

1217Oconee County, GAGA44,89313–

1218Oglethorpe County, GAGA16,41513–

1219Rockdale County, GAGA98,41613–

1220Washington County, IDID11,58313–

1221Clarke County, IAIA9,57413–

1222Keokuk County, IAIA9,79713–

1223Lucas County, IAIA8,84713–

1224Mahaska County, IAIA21,88013–

1225Marion County, IAIA34,19213–

1226Monroe County, IAIA7,40613–

1227Polk County, IAIA516,54613–

1228Union County, IAIA11,82913–

1229Wapello County, IAIA35,21013–

1230Amite County, MSMS12,48713–

1231Big Horn County, MTMT12,75213–

1232Rosebud County, MTMT8,25313–

1233Treasure County, MTMT72813–

1234Yellowstone County, MTMT172,69213–

1235Iredell County, NCNC211,79813–

1236Yadkin County, NCNC38,32513–

1237Morrow County, OROR12,60213–

1238Horry County, SCSC427,55113–

1239Marion County, SCSC28,24213–

1240Butte County, SDSD10,85613–

1241McNairy County, TNTN26,23613–

1242Charles City County, VAVA6,62313–

1243Isle of Wight County, VAVA41,32113–

1244Surry County, VAVA6,60313–

1245Suffolk, VAVA104,69913–

1246Benton County, WAWA221,72213–

1247Grant County, WAWA105,72713–

1248Whitman County, WAWA48,51213–

1249Amador County, CACA41,87612–

1250Santa Clara County, CACA1,914,39112–

1251Ventura County, CACA830,85112–

1252Lincoln County, COCO5,64512–

1253Seminole County, FLFL491,88412–

1254Grady County, GAGA26,59012–

1255Lincoln County, GAGA8,11212–

1256Thomas County, GAGA46,36812–

1257Schuyler County, ILIL6,65712–

1258Adair County, IAIA7,40312–

1259Madison County, IAIA17,27012–

1260Ringgold County, IAIA4,64212–

1261Jackson County, MSMS147,66612–

1262Alamance County, NCNC186,17712–

1263Bertie County, NCNC17,08612–

1264Caswell County, NCNC22,56312–

1265Chowan County, NCNC14,08212–

1266Columbus County, NCNC50,48712–

1267Durham County, NCNC347,24012–

1268Forsyth County, NCNC401,71812–

1269Gates County, NCNC10,23412–

1270Granville County, NCNC61,42112–

1271Greene County, NCNC20,70012–

1272Johnston County, NCNC256,44812–

1273Martin County, NCNC21,60112–

1274Moore County, NCNC110,61912–

1275Orange County, NCNC152,49812–

1276Person County, NCNC40,63612–

1277Pitt County, NCNC182,93612–

1278Stokes County, NCNC46,12612–

1279Surry County, NCNC72,28712–

1280Vance County, NCNC42,63812–

1281Washington County, NCNC10,63812–

1282Wayne County, NCNC122,27812–

1283Wilson County, NCNC81,15012–

1284Bamberg County, SCSC12,79612–

1285Barnwell County, SCSC20,65312–

1286Calhoun County, SCSC14,18812–

1287Fairfield County, SCSC20,34012–

1288Florence County, SCSC138,50412–

1289Lancaster County, SCSC114,29612–

1290Lexington County, SCSC317,58812–

1291McCormick County, SCSC10,21512–

1292Newberry County, SCSC39,56112–

1293Orangeburg County, SCSC83,17712–

1294Beadle County, SDSD19,62412–

1295Buffalo County, SDSD1,80212–

1296Hand County, SDSD3,12112–

1297Kingsbury County, SDSD5,28412–

1298Miner County, SDSD2,28112–

1299Presidio County, TXTX5,43312–

1300Mecklenburg County, VAVA30,74712–

1301Adams County, WAWA21,48812–

1302Orange County, CACA3,149,50711–

1303San Diego County, CACA3,282,24811–

1304Duval County, FLFL1,062,96311–

1305St. Lucie County, FLFL402,44911–

1306Brantley County, GAGA18,93611–

1307Columbia County, GAGA169,18911–

1308Richmond County, GAGA206,55911–

1309Bingham County, IDID51,15311–

1310Jefferson County, IDID35,29711–

1311Brown County, ILIL6,40111–

1312Morgan County, ILIL32,51511–

1313Warren County, ILIL16,22211–

1314Cass County, IAIA12,96011–

1315Ida County, IAIA6,77711–

1316Jasper County, IAIA38,15311–

1317Sac County, IAIA9,52511–

1318Shelby County, IAIA11,68911–

1319Washington County, IAIA22,66711–

1320Calloway County, KYKY39,42111–

1321Fulton County, KYKY6,21811–

1322Hickman County, KYKY4,37211–

1323Marshall County, KYKY31,65911–

1324Ascension Parish, LALA135,10511–

1325Assumption Parish, LALA19,72011–

1326Iberville Parish, LALA29,57911–

1327Brown County, MNMN25,51711–

1328Lac qui Parle County, MNMN6,70411–

1329Le Sueur County, MNMN29,45311–

1330Lincoln County, MNMN5,58311–

1331Lyon County, MNMN25,68411–

1332Murray County, MNMN7,94211–

1333Nicollet County, MNMN34,27311–

1334Pipestone County, MNMN9,26011–

1335Redwood County, MNMN15,26511–

1336Renville County, MNMN14,35611–

1337Sibley County, MNMN15,35611–

1338Yellow Medicine County, MNMN9,47711–

1339Franklin County, MSMS7,49111–

1340Pontotoc County, MSMS32,09611–

1341Cooper County, MOMO17,13611–

1342Pettis County, MOMO44,25411–

1343Taney County, MOMO57,00111–

1344Custer County, MTMT12,03411–

1345Dawson County, MTMT8,69211–

1346Fallon County, MTMT2,95911–

1347Fergus County, MTMT11,82511–

1348Garfield County, MTMT1,14811–

1349Golden Valley County, MTMT84411–

1350Hill County, MTMT16,16711–

1351McCone County, MTMT1,72011–

1352Musselshell County, MTMT5,58211–

1353Petroleum County, MTMT54811–

1354Prairie County, MTMT1,11211–

1355Richland County, MTMT11,37711–

1356Roosevelt County, MTMT10,24211–

1357Sheridan County, MTMT3,43611–

1358Wibaux County, MTMT88511–

1359Humboldt County, NVNV17,26711–

1360Harding County, NMNM61711–

1361San Juan County, NMNM120,34011–

1362Alexander County, NCNC36,95811–

1363Anson County, NCNC21,75811–

1364Bladen County, NCNC30,00711–

1365Camden County, NCNC11,31511–

1366Perquimans County, NCNC13,49011–

1367Union County, NCNC267,67411–

1368Wake County, NCNC1,257,23511–

1369Adams County, NDND2,27511–

1370Billings County, NDND1,07111–

1371Bowman County, NDND2,76211–

1372Dunn County, NDND4,05811–

1373Emmons County, NDND3,21511–

1374Golden Valley County, NDND1,80811–

1375Grant County, NDND2,20611–

1376Hettinger County, NDND2,49211–

1377Logan County, NDND1,85911–

1378McIntosh County, NDND2,45111–

1379McKenzie County, NDND15,19211–

1380McLean County, NDND9,74011–

1381Mercer County, NDND8,44111–

1382Morton County, NDND34,60111–

1383Oliver County, NDND1,89811–

1384Sioux County, NDND3,66711–

1385Slope County, NDND62811–

1386Stark County, NDND34,01311–

1387Gilliam County, OROR1,97111–

1388Sherman County, OROR2,05111–

1389Umatilla County, OROR81,11911–

1390Clarendon County, SCSC31,04311–

1391Edgefield County, SCSC29,80811–

1392Greenwood County, SCSC70,37911–

1393Saluda County, SCSC19,68011–

1394Bennett County, SDSD3,30711–

1395Corson County, SDSD3,78111–

1396Custer County, SDSD9,43111–

1397Harding County, SDSD1,33111–

1398Perkins County, SDSD2,85311–

1399Chester County, TNTN17,99411–

1400Gibson County, TNTN51,77911–

1401Hardin County, TNTN27,98311–

1402Henry County, TNTN32,89611–

1403Madison County, TNTN100,79011–

1404Obion County, TNTN30,06711–

1405Stewart County, TNTN14,43911–

1406Weakley County, TNTN33,26111–

1407Brewster County, TXTX9,45811–

1408Gloucester County, VAVA40,09711–

1409James City County, VAVA83,32611–

1410Middlesex County, VAVA10,84111–

1411Chesapeake, VAVA255,33211–

1412Norfolk, VAVA231,01311–

1413Portsmouth, VAVA96,77711–

1414Williamsburg, VAVA15,86111–

1415Yakima County, WAWA259,18511–

1416Big Horn County, WYWY12,02411–

1417Campbell County, WYWY48,14511–

1418Weston County, WYWY6,84011–

1419Tallapoosa County, ALAL40,95310–

1420Apache County, AZAZ64,44510–

1421Greenlee County, AZAZ9,31210–

1422Yavapai County, AZAZ252,55210–

1423Santa Barbara County, CACA442,06510–

1424Hendry County, FLFL48,27610–

1425Martin County, FLFL166,27210–

1426Palm Beach County, FLFL1,575,72610–

1427Volusia County, FLFL606,57310–

1428Butts County, GAGA27,21810–

1429Chatham County, GAGA311,85510–

1430Clayton County, GAGA297,47110–

1431Coweta County, GAGA160,24010–

1432Henry County, GAGA264,92210–

1433Lamar County, GAGA20,94110–

1434Pike County, GAGA20,93210–

1435Spalding County, GAGA70,77510–

1436Cassia County, IDID26,39710–

1437Franklin County, IDID15,88910–

1438Gem County, IDID21,77310–

1439Lewis County, IDID3,70410–

1440Minidoka County, IDID22,91110–

1441Twin Falls County, IDID97,53910–

1442Calhoun County, ILIL4,30010–

1443Gallatin County, ILIL4,61610–

1444Hardin County, ILIL3,58810–

1445Henderson County, ILIL5,98410–

1446Jackson County, ILIL52,50110–

1447Johnson County, ILIL13,36310–

1448Massac County, ILIL13,50210–

1449Mercer County, ILIL15,22910–

1450Pope County, ILIL3,67210–

1451Pulaski County, ILIL4,82010–

1452Randolph County, ILIL29,92110–

1453Saline County, ILIL22,77210–

1454Union County, ILIL16,65610–

1455Williamson County, ILIL67,22510–

1456Des Moines County, IAIA38,07710–

1457Guthrie County, IAIA10,78210–

1458Hardin County, IAIA16,45510–

1459Iowa County, IAIA16,50410–

1460Johnson County, IAIA160,04410–

1461Louisa County, IAIA10,41610–

1462Marshall County, IAIA39,89010–

1463Muscatine County, IAIA41,85310–

1464Poweshiek County, IAIA18,36810–

1465Tama County, IAIA16,79610–

1466Ballard County, KYKY7,59410–

1467Caldwell County, KYKY12,60910–

1468Carlisle County, KYKY4,74710–

1469Crittenden County, KYKY8,80710–

1470Graves County, KYKY37,05010–

1471Hopkins County, KYKY45,12710–

1472Livingston County, KYKY8,86310–

1473Lyon County, KYKY9,12310–

1474McCracken County, KYKY67,55310–

1475Muhlenberg County, KYKY30,63410–

1476Union County, KYKY12,83910–

1477Webster County, KYKY12,92910–

1478St. Mary Parish, LALA46,55210–

1479Big Stone County, MNMN5,05410–

1480Carver County, MNMN114,37910–

1481Chippewa County, MNMN12,40610–

1482Cottonwood County, MNMN11,40510–

1483Dakota County, MNMN457,71010–

1484Hennepin County, MNMN1,284,78410–

1485McLeod County, MNMN36,63110–

1486Ramsey County, MNMN541,62310–

1487Rice County, MNMN69,93910–

1488Scott County, MNMN159,01710–

1489Traverse County, MNMN3,13010–

1490Wilkin County, MNMN6,28810–

1491Wright County, MNMN157,55910–

1492Chickasaw County, MSMS16,73010–

1493Lee County, MSMS83,73110–

1494Lincoln County, MSMS35,01210–

1495Prentiss County, MSMS25,28410–

1496Bollinger County, MOMO10,64610–

1497Camden County, MOMO44,04710–

1498Cape Girardeau County, MOMO83,99910–

1499Christian County, MOMO96,72510–

1500Cole County, MOMO77,90810–

SHOWING 1,001–1,500 OF 3,144

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES