In Florida, the 34950 zip code in Fort Pierce in St. Lucie County has the highest rate of heat illness. The area is about 17% white, non-rural and low-income. In contrast, ZIP code 33982 in Punta Gorda in Charlotte County, which has the second highest rate of heat illness, is 87% white, less populous, with a median household income of $ 47,000, nearly double that of Fort Pierce. .
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