At a Glance

ISD is a suburban school district with 22 schools. For the 2026-2027 school year, classes begin September 8 and end June 8. This calendar includes 2 early-release or half days, 2 remote/asynchronous days — useful to know when planning childcare. Standardized testing windows: ACT Day (March 9).

Also known as ISD.

Schools in Lakeville Area Schools

Lakeville Area Schools 2026-2027 School Calendar

All schools