Home › Georgia › Cobb County
Cobb County Schools
Schools graded
110
Cities served
8
Students
106,358
Students per teacher
14.2
Grades
Pre-K to 12
Area
316 sq mi
State
GA
Cobb County is a public school district in Georgia, based in Cobb County (Marietta). SchoolGrade grades 110 of its schools on actual versus projected test scores; every school below has its own page.
Cobb County on the map
Click a type to show or hide its schools.
District boundary from the NCES EDGE composite school district file. Each marker is a graded school; click it for its grade and scores.
SchoolGrade summary for Cobb County
Average SchoolGrade
C+
Meeting or exceeding expectations
64%
Exceeding
26%
Avg actual scores
38.4%
Avg projected
40.2%
107 of 110 schools in Cobb County carry a SchoolGrade (3 have too little test data to grade). Grade distribution:
A: 21B: 27C: 26D: 31F: 2
Best schools in Cobb County
Statewide rankings: all 436 high schools in Georgia · all 452 middle schools in Georgia · all 1219 elementary schools in Georgia
The ten highest SchoolGrades in the district. Grades reward actual test performance against the projection for each school's student context, so a B in a high-poverty school can outrank an A- elsewhere on impact.
- A+ Dickerson Middle School (Middle school, greatly exceeds expectations)
- A+ Mount Bethel Elementary School (Elementary school, exceeds expectations)
- A+ Tritt Elementary School (Elementary school, greatly exceeds expectations)
- A+ Sope Creek Elementary School (Elementary school, exceeds expectations)
- A+ Dodgen Middle School (Middle school, greatly exceeds expectations)
- A+ Murdock Elementary School (Elementary school, greatly exceeds expectations)
- A+ East Side Elementary School (Elementary school, exceeds expectations)
- A+ Mabry Middle School (Middle school, greatly exceeds expectations)
- A+ Timber Ridge Elementary School (Elementary school, exceeds expectations)
- A Mountain View Elementary School (Elementary school, greatly exceeds expectations)
Every school in Cobb County
High schools (17)
- C+ Allatoona High School, Acworth
- C- Campbell High School, Smyrna
- D Cobb Horizon High School, Atlanta
- B+ Harrison High School, Kennesaw
- B+ Hillgrove High School, Powder Springs
- C+ Kell High School, Marietta
- B- Kennesaw Mountain High School, Kennesaw
- B+ Lassiter High School, Marietta
- C- Mceachern High School, Powder Springs
- C+ North Cobb High School, Kennesaw
- D- Osborne High School, Marietta
- C- Pebblebrook High School, Mableton
- A- Pope High School, Marietta
- C- South Cobb High School, Austell
- C+ Sprayberry High School, Marietta
- A Walton High School, Marietta
- B- Wheeler High School, Marietta
Middle and junior high schools (26)
- C- Acworth Intermediate School, Acworth
- C+ Awtrey Middle School, Kennesaw
- C Barber Middle School, Acworth
- D Campbell Middle School, Smyrna
- C Cooper Middle School, Austell
- C Daniell Middle School, Marietta
- A+ Dickerson Middle School, Marietta
- A+ Dodgen Middle School, Marietta
- A- Durham Middle School, Acworth
- C- East Cobb Middle School, Marietta
- D+ Floyd Middle School, Mableton
- D- Garrett Middle School, Austell
- D Griffin Middle School, Smyrna
- A Hightower Trail Middle School, Marietta
- D- Lindley Middle School, Mableton
- A- Lost Mountain Middle School, Kennesaw
- B+ Lovinggood Middle School, Powder Springs
- A+ Mabry Middle School, Marietta
- B- Mccleskey Middle School, Marietta
- B+ Mcclure Middle School, Kennesaw
- B Palmer Middle School, Kennesaw
- Pearson Middle School, Marietta
- C Pine Mountain Middle School, Kennesaw
- A Simpson Middle School, Marietta
- D+ Smitha Middle School, Marietta
- C- Tapp Middle School, Powder Springs
Elementary and primary schools (65)
- B+ Addison Elementary School, Marietta
- D Argyle Elementary School, Smyrna
- D+ Austell Elementary School, Austell
- C Baker Elementary School, Acworth
- C Bells Ferry Elementary School, Marietta
- D Belmont Hills Elementary School, Smyrna
- C Big Shanty Elementary School, Kennesaw
- D- Birney Elementary School, Marietta
- C- Blackwell Elementary School, Marietta
- F Brumby Elementary School, Marietta
- D- Bryant Elementary School, Mableton
- B Bullard Elementary School, Kennesaw
- B- Chalker Elementary School, Kennesaw
- B+ Cheatham Hill Elementary School, Marietta
- D- City View Elementary School, Mableton
- D+ Clarkdale Elementary School, Austell
- D Clay Harmony Leland Elementary School, Mableton
- D- Compton Elementary School, Powder Springs
- B+ Davis Elementary School, Marietta
- C- Dowell Elementary School, Marietta
- B+ Due West Elementary School, Marietta
- A+ East Side Elementary School, Marietta
- B- Eastvalley Elementary School, Marietta
- D Fair Oaks Elementary School, Marietta
- A- Ford Elementary School, Acworth
- B+ Frey Elementary School, Acworth
- A Garrison Mill Elementary School, Marietta
- D Green Acres Elementary School, Smyrna
- C Hayes Elementary School, Kennesaw
- D Hendricks Elementary School, Powder Springs
- D Hollydale Elementary School, Marietta
- B- Keheley Elementary School, Marietta
- A- Kemp Elementary School, Powder Springs
- Kennesaw Elementary School, Kennesaw
- B+ Kincaid Elementary School, Marietta
- B+ King Springs Elementary School, Smyrna
- F Labelle Elementary School, Marietta
- C+ Lewis Elementary School, Kennesaw
- D Mableton Elementary School, Mableton
- Mccall Primary School, Acworth
- D Milford Elementary School, Marietta
- A+ Mount Bethel Elementary School, Marietta
- A Mountain View Elementary School, Marietta
- A+ Murdock Elementary School, Marietta
- B- Nicholson Elementary School, Marietta
- B- Nickajack Elementary School, Smyrna
- D- Norton Park Elementary School, Smyrna
- B Picketts Mill Elementary School, Acworth
- B- Pitner Elementary School, Acworth
- D Powder Springs Elementary School, Powder Springs
- D Powers Ferry Elementary School, Marietta
- D- Riverside Elementary School, Mableton
- A- Rocky Mount Elementary School, Marietta
- D Russell Elementary School, Smyrna
- D+ Sanders Elementary School, Austell
- C- Sedalia Park Elementary School, Marietta
- A Shallowford Falls Elementary School, Marietta
- C- Smyrna Elementary School, Smyrna
- A+ Sope Creek Elementary School, Marietta
- B- Still Elementary School, Powder Springs
- B- Teasley Elementary School, Smyrna
- A+ Timber Ridge Elementary School, Marietta
- A+ Tritt Elementary School, Marietta
- C- Varner Elementary School, Powder Springs
- B Vaughan Elementary School, Powder Springs
Other schools and academies (2)
- D- Devereux Ackerman Academy, Kennesaw
- D- Lindley 6th Grade Academy, Mableton
Where Cobb County schools are
About this district
- State: Best schools in Georgia
- County: Cobb County
- Type: regular local school district
- Setting: large suburb (NCES locale of the district office)
- Enrollment: 106,358 students with 7,468 full-time-equivalent teachers and 13,789 total staff FTE (NCES CCD, 2023-24)
- NCES district ID: 1301290
- Grades are the 2025-26 SchoolGrade model: each school's actual proficiency against the level projected for its student context. How SchoolGrade works
Nearby school districts
- Marietta City (13 schools, 3 mi)
- Atlanta Public Schools (86 schools, 13 mi)
- Paulding County (33 schools, 17 mi)
- City Schools of Decatur (9 schools, 18 mi)
- Douglas County (35 schools, 19 mi)
- DeKalb County (131 schools, 22 mi)
- Fulton County (108 schools, 22 mi)
- Cartersville City (4 schools, 22 mi)
Questions about Cobb County
How many schools are in Cobb County?
SchoolGrade grades 110 public schools in Cobb County, across 8 cities and towns. Every one of them is listed on this page with a link to its own report.
Which cities does Cobb County serve?
The largest by graded schools: Marietta, Kennesaw, Smyrna, Powder Springs, Acworth and 3 more.
How good are the schools in Cobb County?
Across the 107 graded schools, the average SchoolGrade is C+, with 38.4% of tested students meeting the state bar against a projected 40.2%. 64% of schools meet or exceed the expectation for their student context.
How many students attend Cobb County?
106,358 students were enrolled in Cobb County in the 2023-24 school year, about 14.2 students per full-time teacher (NCES Common Core of Data).
Where is Cobb County?
Cobb County is in Georgia, based in Cobb County, with its district office in Marietta. Its boundary covers about 316 sq mi.