Forest Grove, Milam County, TexasForest Grove is an unincorporated community located in Milam County, Texas, United States. According to the Handbook of Texas, the community had a population of 60 in 2000.HistoryThere is little history of Forest Grove, other than its being a rural church community. It had a population of 40 in 1966 and 60 from 1990 through 2000.GeographyForest Grove is located on U.S. Highway 77, south of Rockdale in southern Milam County.EducationToday, the community is served by the Rockdale Independent School District.