City Schools of Decatur, which serves only students within the city limits, holds pre-school to grade twelve, and consists of a pre-K early childhood learning center, five lower elementary schools, two upper elementary schools (the second of which is opening in August 2019), a middle school, and a high school.
Decatur High School is the district's sole high school.
The Decatur City district has 224 full-time teachers and over 4,400 students from pre-K through grade 12.

The DeKalb County School District serves unincorporated DeKalb County.

The Roman Catholic Archdiocese of Atlanta operates St. Thomas More School in Decatur; it opened on September 1, 1950.
At first it only had elementary grades and its initial enrollment was 150.
A dedicated elementary building opened in 1955, and an addition for kindergarten classes with two rooms was placed in 1994.
St. Peter Claver Regional School has a Decatur mailing address but is in nearby Candler-McAfee CDP.
City Schools of Decatur, which serves only students within the city limits, holds pre-school to grade twelve, and consists of a pre-K early childhood learning center, five lower elementary schools, two upper elementary schools (the second of which is opening in August 2019), a middle school, and a high school. Decatur High School is the district's sole high school. The Decatur City district has 224 full-time teachers and over 4,400 students from pre-K through grade 12.
The DeKalb County School District serves unincorporated DeKalb County.
The Roman Catholic Archdiocese of Atlanta operates St. Thomas More School in Decatur; it opened on September 1, 1950. At first it only had elementary grades and its initial enrollment was 150. A dedicated elementary building opened in 1955, and an addition for kindergarten classes with two rooms was placed in 1994. St. Peter Claver Regional School has a Decatur mailing address but is in nearby Candler-McAfee CDP.
Decatur, Georgia