Which county has the highest heat vulnerability rate?

Kusilvak Census Area, Alaska ranks #1 with 81.4% (2022 American Community Survey).

What are the top 5 counties by heat vulnerability rate?

Kusilvak Census Area, Alaska, Bethel Census Area, Alaska, Northwest Arctic, Alaska, Nome Census Area, Alaska, Aleutians East, Alaska.

How many counties are in this ranking?

3,144 counties qualify after filtering for population minimums and data availability. The ranking covers 2022 ACS 5-year data.

How is heat vulnerability rate measured?

Share of people estimated to have three or more of the risk factors that make it hardest to prepare for and recover from extreme heat, from the Census Bureau's experimental Community Resilience Estimates for Heat. Source: US Census Bureau, American Community Survey 5-year estimates (2022).

RANKING · 2022 ACS · 144 SHOWN OF 3,144

Most vulnerable to extreme heat, US counties

US counties ranked by the share of people with three or more risk factors that make it hardest to cope with extreme heat in 2022, from the Census Bureau's experimental Community Resilience Estimates for Heat (experimental, modeled data).

All statesAll rankings

SAME RANKING BYStates

RANKPLACESTATEPOPHEAT VULNERABILITY RATEVS –

3001Boone County, ILIL53,56818.0%–

3002Kenton County, KYKY175,77918.0%–

3003Prince George County, VAVA43,93618.0%–

3004Charles County, MDMD176,59318.0%–

3005Radford, VAVA17,24318.0%–

3006St. Croix County, WIWI98,27618.0%–

3007Onslow County, NCNC217,17518.0%–

3008Montgomery County, TNTN249,93518.0%–

3009Deuel County, SDSD4,40818.0%–

3010Tooele County, UTUT87,46118.0%–

3011Putnam County, OHOH34,38018.0%–

3012Jefferson County, WIWI86,50518.0%–

3013Stevens County, MNMN9,74717.9%–

3014Bryan County, GAGA52,06217.9%–

3015Ozaukee County, WIWI94,34617.9%–

3016Cedar County, IAIA18,35917.9%–

3017Olmsted County, MNMN166,73117.9%–

3018Stanton County, NENE5,74417.9%–

3019York County, SCSC306,88717.9%–

3020Mahaska County, IAIA21,88017.8%–

3021Ottawa County, MIMI308,45917.8%–

3022Clermont County, OHOH216,97717.8%–

3023Mercer County, NDND8,44117.8%–

3024McLeod County, MNMN36,63117.8%–

3025Spotsylvania County, VAVA155,38817.7%–

3026Henry County, GAGA264,92217.6%–

3027Campbell County, KYKY95,44117.6%–

3028Wilson County, TNTN175,03317.6%–

3029Ward County, NDND68,23317.6%–

3030Burleigh County, NDND103,25117.6%–

3031Lincoln County, MOMO66,67617.6%–

3032Dane County, WIWI590,37517.6%–

3033Outagamie County, WIWI195,89417.6%–

3034Linn County, IAIA232,02817.5%–

3035Christian County, MOMO96,72517.5%–

3036Calumet County, WIWI53,98217.5%–

3037Boone County, IAIA26,79917.5%–

3038Chambers County, TXTX57,59417.5%–

3039Powhatan County, VAVA32,59117.5%–

3040St. Johns County, FLFL346,32817.5%–

3041Putnam County, NYNY99,02817.4%–

3042Will County, ILIL712,25317.4%–

3043Cass County, NDND201,79417.4%–

3044Tazewell County, ILIL130,04917.4%–

3045Hillsborough County, NHNH433,41517.4%–

3046Madison County, IAIA17,27017.4%–

3047Hanover County, VAVA116,42317.3%–

3048Cobb County, GAGA793,34517.3%–

3049Golden Valley County, NDND1,80817.3%–

3050Green County, WIWI37,22717.3%–

3051Kearney County, NENE6,79017.2%–

3052Houston County, MNMN18,40017.2%–

3053Bremer County, IAIA25,29617.1%–

3054Livingston County, MIMI197,31517.1%–

3055Anoka County, MNMN381,60517.1%–

3056Minnehaha County, SDSD212,69117.1%–

3057Williamson County, TXTX752,82717.0%–

3058Johnson County, ININ174,26217.0%–

3059Rockingham County, NHNH324,07716.9%–

3060Rockwall County, TXTX140,73816.9%–

3061Hartley County, TXTX4,90416.9%–

3062Monroe County, ILIL34,84016.9%–

3063Medina County, OHOH185,02516.9%–

3064El Paso County, COCO757,04016.9%–

3065Foster County, NDND3,21216.8%–

3066Washington County, WIWI139,23816.8%–

3067Denton County, TXTX1,069,34616.8%–

3068Pierce County, WIWI43,51916.8%–

3069Warrick County, ININ66,80316.8%–

3070Anne Arundel County, MDMD603,38016.8%–

3071Union County, NCNC267,67416.7%–

3072Ada County, IDID546,14116.7%–

3073Sussex County, NJNJ148,06316.6%–

3074Frederick County, MDMD302,88316.6%–

3075Union County, SDSD17,40216.6%–

3076Chesterfield County, VAVA397,14816.6%–

3077Boone County, KYKY145,31616.4%–

3078Arlington County, VAVA243,93116.4%–

3079Cass County, NENE27,65716.4%–

3080Clay County, MOMO265,03216.4%–

3081Fairfax County, VAVA1,167,87316.3%–

3082Cherokee County, GAGA299,27316.3%–

3083Wake County, NCNC1,257,23516.3%–

3084Grundy County, IAIA12,36116.1%–

3085Paulding County, GAGA190,99616.1%–

3086Chester County, PAPA557,11616.1%–

3087Jasper County, IAIA38,15316.1%–

3088Saunders County, NENE23,70216.0%–

3089McHenry County, ILIL317,75116.0%–

3090Chisago County, MNMN59,14216.0%–

3091Andrew County, MOMO18,24116.0%–

3092Prince William County, VAVA502,96615.9%–

3093Pulaski County, MOMO54,44215.9%–

3094Platte County, MOMO114,40015.9%–

3095Carroll County, MDMD176,67715.9%–

3096Howard County, MDMD339,18315.8%–

3097Dakota County, MNMN457,71015.8%–

3098Calvert County, MDMD94,48415.8%–

3099Salt Lake County, UTUT1,220,91615.7%–

3100Dodge County, MNMN21,37615.6%–

3101Isanti County, MNMN44,38615.6%–

3102Davis County, UTUT381,22715.6%–

3103Gray County, KSKS5,65215.6%–

3104Le Sueur County, MNMN29,45315.5%–

3105Lyon County, IAIA12,35415.5%–

3106Oconee County, GAGA44,89315.4%–

3107Waukesha County, WIWI417,21015.3%–

3108Colfax County, NENE10,93415.3%–

3109Hendricks County, ININ193,51015.3%–

3110Collin County, TXTX1,297,17915.3%–

3111St. Charles County, MOMO426,49915.3%–

3112Turner County, SDSD9,31415.2%–

3113Fairfax, VAVA26,77215.2%–

3114Logan County, NENE66915.1%–

3115Washington County, MNMN286,89515.1%–

3116Hancock County, ININ90,96914.9%–

3117Grundy County, ILIL54,05214.9%–

3118Union County, OHOH73,44614.9%–

3119Douglas County, COCO399,39614.8%–

3120Wright County, MNMN157,55914.8%–

3121York County, VAVA71,37414.7%–

3122Sarpy County, NENE208,30314.7%–

3123Johnson County, KSKS636,90614.7%–

3124Warren County, IAIA57,33114.7%–

3125Williamson County, TNTN272,06114.4%–

3126Kendall County, ILIL145,47014.4%–

3127Sherburne County, MNMN104,19414.3%–

3128Hunterdon County, NJNJ131,78114.3%–

3129Boone County, ININ80,68914.3%–

3130Warren County, OHOH257,18114.1%–

3131Morgan County, UTUT13,38314.1%–

3132Scott County, MNMN159,01713.8%–

3133Delaware County, OHOH242,03213.6%–

3134Utah County, UTUT759,85913.5%–

3135Lincoln County, SDSD77,14513.4%–

3136Stafford County, VAVA170,80313.1%–

3137Chattahoochee County, GAGA8,46513.1%–

3138Falls Church, VAVA15,15913.0%–

3139Dallas County, IAIA118,45712.9%–

3140Oldham County, KYKY70,98612.9%–

3141Hamilton County, ININ387,03612.5%–

3142Forsyth County, GAGA282,80512.1%–

3143Carver County, MNMN114,37912.0%–

3144Loudoun County, VAVA449,74912.0%–

SHOWING 3,001–3,144 OF 3,144

1 2 3 4 5 6 7

Download CSV (full list, 3,144 rows)

UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES