Concord School District sees spike in CRTC applications, drop in AP course enrollment Published: 3/14/2021 2:09:43 PM The number of students at Concord High School at the Concord Regional Technical Center is on track to increase next year, but the numbers show fewer students are planning to take advanced classes, following a difficult year for academic learning. In a Concord School Board meeting Wednesday, Concord High School principal Mike Reardon and Concord Regional Technical Center (CRTC) director Steve Rothenberg presented enrollment data to the board. District data projects there will be 1,530 students enrolled at Concord High in the 2021-2022 school year, an increase of 19 students from this school year, with 1,511 students. Some of that is due to an influx of first-years entering from the middle school, but it’s also because some students may not leave.