School Calendar 2025 Polk County. The district school calendar for polk county in 2025 and 2026 is an important resource for parents, students, and teachers to plan ahead. 1100 red devil way, lakeland, fl 33815 phone:
801 scenic hwy, haines city, fl 33844 phone: Get the dates for the first and last day of school, christmas break, spring break, and more.