Located in the historic Crabapple community in the northwestern corner of Fulton County, Northwestern Middle School (NMS) was established in 1996. It was named for Northwestern Elementary School, which served area students from 1933 until its closing in 1992. The newest Northwestern opened with a sense of tradition as well as a vision toward the future.
The school serves sixth, seventh, and eighth graders who live in the communities of Roswell, Alpharetta, and Milton. The school was designed for a capacity of 1325 and it opened with 1282 students. Northwestern now has a student body of approximately 1340.