Des Moines includes a Metropolitan area known as the Des Moines-West Des Moines Metropolitan Statistical Area, and the suburban area. The metropolitan area is made up of five central Iowa counties: Polk, Dallas, Warren, Madison, and Guthrie. This combined area had an estimated population of 534 230 in 2006. The suburbs of Des Moines include: Altoona, Ankeny, Bondurant, Carlisle, Clive, Grimes, Indianola, Johnston, Norwalk, Pleasant Hill, Polk City, Urbandale, Waukee, West Des Moines, and Windsor Heights |