ACSD is a suburban school district with 11 schools. For the 2026-2027 school year, classes begin September 8 and end June 24. Arlington Central School District, established in 1924 and serving Dutchess County's towns of LaGrange and Poughkeepsie, is one of thirteen public school districts in Dutchess County and enrolls approximately 8,300 students across 13 schools. The calendar sets aside 4 additional days (March 29–May 28) that may be used as weather makeup days if needed. This calendar includes 3 professional development days, 8 early-release or half days — useful to know when planning childcare.
Also known as ACSD.