Rio Frio is an unincorporated community in southeastern Real County, Texas, United States. It lies just off U.S. Route 83, south of the city of Leakey, the county seat of Real County.Rand McNally. The Road Atlas '06. Chicago: Rand McNally, 2006, p. 101. It has a post office, with the ZIP code 78879.USPS – Cities by ZIP Code The town is named after the Frio River, on which it is situated.
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External links Photos and information about Frio