Fleming Island cost of living score 100.1 More expensive 0.1% higher than the US average 2.9% lower than the Florida average Fleming Island (zip 32003), Florida gets a BestPlaces Cost of Living score of 100.1, which means the total cost of housing, food, childcare, transportation, healthcare, taxes, and other necessities is 0.1% higher than the U.S. average and 2.9% higher than the average for Florida.