Silver Lake RV Park is on Silver Lake with over 100 sites equipped with water, sewer and electric hookup. It is located in Angola, Indiana. Angola is a city in Pleasant Township, Steuben County, Indiana, United States. The population was 8,612 at the 2010 census. The city is the county seat of Steuben County. Angola was founded by Thomas Gale and Cornelius Gilmore on June 28, 1838, and is home to Trine University.