 The 2010 United States Census reported that Oak Glen had a population of 638.The population density was 42.2 people per square mile (16.3/km²).The racial makeup of Oak Glen was 545 (85.4%) White (68.5% Non-Hispanic White), 50 (7.8%) African American, 13 (2.0%) Native American, 2 (0.3%) Asian, 1 (0.2%) Pacific Islander, 14 (2.2%) from other races, and 13 (2.0%) from two or more races.