Silver Valley, TexasSilver Valley is an unincorporated community in Coleman County, Texas, United States. According to the Handbook of Texas, the community had a population of 20 in 2000.GeographySilver Valley is located on U.S. Highway 84 on the Santa Fe Railroad, north of Coleman in northwestern Coleman County.ClimateThe climate in this area is characterized by hot, humid summers and generally mild to cool winters. According to the Köppen climate classification system, Silver Valley has a humid subtropical climate, abbreviated Cfa on climate maps.EducationToday, Silver Valley is served by the Coleman Independent School District.