The only 4 year school in the Des Moines Area is Grandview College. DMACC has quite a few campuses around Des Moines, but they only offer a 2 year degree (I'm going to DMACC). Iowa mainly has just 2 year schools with the exception of Allen, University of Iowa, and Grandview. The other two are on the eastern half of the state.

Hope this helps...Let me know if you need anything else!