From the city of Ames website:
"Based on the 2010 census, the population for Ames, Iowa, is 58,965. This number includes students attending Iowa State University who reside in Ames during the school year or longer."
City of Ames : Quick Facts About Ames
Yep, but only those who filled out the census and claimed Ames. Population without the students (besides those who actually are permanent residents) is really unknown, just speculating I would say around 50,000 though.