Washington Terrace is a city in Weber County, Utah, United States. The population was 9,067 at the 2010 census. It is part of the Ogden–Cle…Washington Terrace is a city in Weber County, Utah, United States. The population was 9,067 at the 2010 census. It is part of the Ogden–Clearfield, Utah Metropolitan Statistical Area. Washington Terrace had its foundings when it was developed in 1948 from a war time housing project. George Herman Van Leeuwen was instrumental in securing the land from the federal government and acted as the President of the Board of Directors. Due to his role in the organizing of the community, it was proposed to be named VanLeeuwenville, which was voted down for a variety of reasons.