completion, including Valley West Mall, which opened in 1975. West Des Moines' population jumped from 11,964 in 1960 to 31,702 in 1990. West Des Moines expanded into Dallas County during the 1990s and 2000s, once again placing the premier golf courses of the Des Moines Golf and Country Club in its city limits and punctuated by the opening of one of the best golf courses in Iowa at the Glen Oaks Country Club along with the West Glen Town Center and the largest in the state of Iowa, Jordan Creek Town Center and shopping mall in 2004. Major commercial construction is underway around the area, including the opening of many additional hotels, shopping centers, and office buildings, including a new Wells Fargo corporate campus. In 2007, construction started on the Village of Ponderosa, an urban-inspired and pedestrian-friendly community. In 2005, West Des Moines annexed land in Warren County for the first time. Seeing the land to the south of Des Moines as extremely valuable, especially with the completion of a major "South-Belt Freeway" system, the cities of Norwalk and West Des Moines are actively competing for land in the northern part of Warren County. From 1990 to 2015, West Des Moines is the fastest growing city in Iowa according to the landmass. During the 1990s, a new city/school campus opened near the intersection of South 35th Street and Mills Civic Parkway. West Des Moines' new police station opened in April 1992. This was followed by the opening of a new public library in 1996; the library served as a temporary home for West Des Moines' city hall until a new building was dedicated in late 2002. The campus also features a new stadium for Valley High School that also opened in 2002. On the same property, the West Des Moines School district operates Valley Southwoods, a freshman high school with over 600 students that opened in 1996. Turning the West Des Moines Community Schools into a two high school district was not acceptable. In 2004, August Hillside Elementary opened on the former site of Hillside Junior High and Old Valley Stadium, which was demolished in 2001. In 2012, Clegg Park Elementary was renovated and opened as the new Walnut Creek Campus which is the district's alternative high school. Major renovation and additions were completed at Valley High in 2007 and again in 2015. Government West Des Moines uses the mayor-council