<Tr> <Th> FIPS code </Th> <Td> 04 - 25300 </Td> </Tr> <Tr> <Th> Website </Th> <Td> Town of Fountain Hills, Arizona </Td> </Tr> <P> Fountain Hills is a town in Maricopa County, Arizona, United States . Known for its impressive fountain, once the tallest in the world, it borders on the Fort McDowell Yavapai Nation, Salt River Pima - Maricopa Indian Community, and Scottsdale, Arizona . The population is 22,489, as of the 2010 census . Between the 1990 and 2000 censuses it was the eighth - fastest - growing place among cities and towns in Arizona . </P> <P> Fountain Hills was developed by C.V. Wood, president of McCulloch Oil, and was named after the towering man - made fountain in the center of town . It was incorporated in 1989 . </P>

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