Corvallis Middle School Claim Listing Return to Directory Rating (average) (0) Business Genre Education, Schools Business Website Address corvallis.k12.mt.us Business Address, City PO Box 700, Corvallis ZIP Code 59828 Business Phone Number 4069613007 Business Fax 4069618876 Ratings There are no reviews yet. Please login to leave a review. Please login to claim this listing. Username*: Email*: Password*: Log in | Lost your password?