RANKING · 2022 ACS · 51 SHOWN OF 51

Most people vulnerable to extreme heat, US states

US states ranked by the estimated number of people with three or more heat-related social-vulnerability risk factors in 2022, from the Census Bureau's experimental Community Resilience Estimates for Heat (experimental, modeled data). California leads at 11,397,743. 51 states qualify in total. The top 25 average 2,782,019, against an all-states median of 1,114,272.

All statesAll rankings

SAME RANKING BYCounties

RANKPLACESTATEPOPRESIDENTS VULNERABLE TO EXTREME HEATVS –

USUnited States331,097,5933,884,001–

01California, CACA39,287,37711,397,743–

02Texas, TXTX30,188,4247,489,787–

03New York, NYNY19,852,3665,875,856–

04Florida, FLFL22,416,0775,750,273–

05Pennsylvania, PAPA13,018,6393,119,304–

06Illinois, ILIL12,694,7982,874,162–

07Ohio, OHOH11,810,2932,621,313–

08North Carolina, NCNC10,730,4042,551,967–

09Georgia, GAGA10,940,4072,433,555–

10Michigan, MIMI10,077,7612,378,454–

11New Jersey, NJNJ9,343,8092,213,179–

12Washington, WAWA7,816,1162,140,481–

13Arizona, AZAZ7,378,8381,853,535–

14Virginia, VAVA8,705,1701,786,811–

15Tennessee, TNTN7,066,3831,713,957–

16Massachusetts, MAMA7,044,0561,556,725–

17Indiana, ININ6,851,0731,485,952–

18Alabama, ALAL5,086,7681,362,035–

19Missouri, MOMO6,191,8141,349,631–

20South Carolina, SCSC5,296,2251,304,333–

21Maryland, MDMD6,206,0111,301,924–

22Colorado, COCO5,862,1891,284,203–

23Louisiana, LALA4,611,9611,274,835–

24Wisconsin, WIWI5,914,8721,268,023–

25Oregon, OROR4,254,2931,162,439–

26Minnesota, MNMN5,739,4451,114,272–

27Kentucky, KYKY4,534,8241,111,067–

28Oklahoma, OKOK4,028,6341,020,692–

29Mississippi, MSMS2,946,779863,794–

30Nevada, NVNV3,184,612834,267–

31Arkansas, ARAR3,049,391829,851–

32Connecticut, CTCT3,624,508792,863–

33New Mexico, NMNM2,120,246683,831–

34Iowa, IAIA3,210,507627,710–

35Kansas, KSKS2,947,197615,529–

36Utah, UTUT3,392,331613,625–

37Idaho, IDID1,934,262492,866–

38West Virginia, WVWV1,778,373489,275–

39Hawaii, HIHI1,445,235426,025–

40Nebraska, NENE1,978,707392,520–

41Maine, MEME1,387,817367,990–

42Montana, MTMT1,116,875325,186–

43New Hampshire, NHNH1,394,868301,067–

44Alaska, AKAK735,706275,216–

45Rhode Island, RIRI1,101,801242,796–

46Delaware, DEDE1,021,191229,204–

47South Dakota, SDSD907,428199,565–

48Vermont, VTVT647,106166,094–

49District of Columbia, DCDC681,294161,459–

50Wyoming, WYWY582,397161,151–

51North Dakota, NDND784,841156,802–

SHOWING 1–51 OF 51

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

Frequently asked

Which state has the highest residents vulnerable to extreme heat?

California ranks #1 with 11,397,743 (2022 American Community Survey).

What are the top 5 states by residents vulnerable to extreme heat?

California, Texas, New York, Florida, Pennsylvania.

How many states are in this ranking?

51 states qualify after filtering for population minimums and data availability. The ranking covers 2022 ACS 5-year data.

How is residents vulnerable to extreme heat measured?

Estimated number of people with three or more heat-related social-vulnerability risk factors, from the Census Bureau's experimental Community Resilience Estimates for Heat. The raw-count companion to the heat-vulnerability rate. Source: US Census Bureau, American Community Survey 5-year estimates (2022).