You may have already found the requested information but just in case you didn't, here are some figures from the Waterloo School District website for the 2011-2012 year:
Middle (core subjects) 21.6
High School (core subjects) 23
Student-toProfessional Ratio are:
Hope this answers your question. If you have any questions, call me at 319.231.8640.
Carole Deeds, Broker Associate
Century21 LSB Real Estate
Licensed Realtor in the Great State of Iowa!