Satin is an unincorporated community in Falls County, Texas, United States. Its elevation is 400 feet (122 m), and it is located at 31°20′48″N 97°1′54″W / 31.34667°N 97.03167°W / 31.34667; -97.03167 (31.3465629, -97.0316610). Although Satin is unincorporated, it has a post office, with the ZIP code of 76685; the ZCTA for ZIP Code 76685 had a population of 109 at the 2000 census.