chigger range there should be a section on which areas of the world are plagued by chiggers and which aren't i know here in the u s they are prevalent in the hot and humid parts of the country mostly in the south east the south and the midwest and they're not present in northern areas or the high mountains and deserts of the west i don't think the west coast has much of a chigger problem either anyhow quite awful animals right up there with ticks as some of the worst