Registration for ALL Returning Hayden-Winkelman Students will be on Wednesday, July 23, 2025 & Thursday, July 24, 2025 - 12-00 - 6:00 pm - Hayden High School District Lobby - Bring in updated immunizations, proof of residence and insurance health card. Any questions, Call Leonor Hambly K-8, Kindergarten - 8th Grades at 520-356-7876, Ex. 2202 and Hayden High School, 9th - 12th Grades - 520-356-7876, Ex. 1300.