City summary
What the indexed records say
Jacksonville has 34 published ZIP profiles across Duval County. The indexed median is 238 PPM, compared with 280 PPM across Florida.
Among the 290 Floridacities with an indexed median, Jacksonville ranks #179from highest to lowest. Across all 603 state ZIP profiles, available estimates run from 20to 374.5 PPM.
The 232.5–241.5 PPM range shows how much the available ZIP estimates vary within the city label.