Best high schools in DeKalb County (2025)
Schools classified as high schools by NCES. Ranked by the Success Index (US) from official American data; 23 schools in DeKalb County, Georgia. Rank positions shown on each profile are within United States and Georgia.
- Elementary Schools in DeKalb County
- Middle Schools in DeKalb County
- Traditional Public Schools in DeKalb County
- Charter Schools in DeKalb County
- Schools by Math Proficiency in DeKalb County
- Schools by Reading Proficiency in DeKalb County
- Lowest Student–Teacher Ratio in DeKalb County
- Largest Schools in DeKalb County
- 182DeKalb School of the ArtsAvondale Estates · Public High72% Math proficiency · 298 students
- 264Dekalb Early College AcademyStone Mountain · Public High87% Math proficiency · 314 students
- 359Chamblee High SchoolChamblee · Public High52% Math proficiency · 1,867 students
- 458Dunwoody High SchoolDunwoody · Public High43% Math proficiency · 2,012 students
- 553Lakeside High SchoolAtlanta · Public High43% Math proficiency · 2,234 students
- 648Tapestry Public Charter SchoolDoraville · Charter High22% Math proficiency · 300 students
- 745Druid Hills High SchoolAtlanta · Public High34% Math proficiency · 1,468 students
- 843Arabia Mountain High School - Academy of Engineering- MedicLithonia · Public High34% Math proficiency · 1,224 students
- 930Cross Keys High SchoolBrookhaven · Public High44% Math proficiency · 1,748 students
- 1026Tucker High SchoolTucker · Public High26% Math proficiency · 1,614 students
- 1120Clarkston High SchoolClarkston · Public High25% Math proficiency · 1,441 students
- 1220Stephenson High SchoolStone Mountain · Public High24% Math proficiency · 1,339 students
- 1319Southwest DeKalb High SchoolDecatur · Public High20% Math proficiency · 1,237 students
- 1419Cedar Grove High SchoolEllenwood · Public High26% Math proficiency · 1,121 students
- 1518Elizabeth Andrews High SchoolStone Mountain · Public High2.5% Math proficiency · 167 students
- 1616McNair High SchoolAtlanta · Public High7% Math proficiency · 779 students
- 1715Miller Grove High SchoolLithonia · Public High16% Math proficiency · 1,073 students
- 1813Stone Mountain High SchoolStone Mountain · Public High12% Math proficiency · 1,254 students
- 1912Lithonia High SchoolLithonia · Public High14% Math proficiency · 1,547 students
- 2012Columbia High SchoolDecatur · Public High7% Math proficiency · 877 students
- 2112Martin Luther King- Jr. High SchoolLithonia · Public High12% Math proficiency · 1,370 students
- 2212Redan High SchoolStone Mountain · Public High17% Math proficiency · 1,052 students
- 2311Towers High SchoolDecatur · Public High12% Math proficiency · 876 students
| # | School | Sector | Success Index (US) | Key result | Students |
|---|---|---|---|---|---|
| 1 | DeKalb School of the Arts Avondale Estates · High · Grades 8–12 | Public | 81.9 Top 10% | 72% Math proficiency | 298 |
| 2 | Dekalb Early College Academy Stone Mountain · High · Grades 9–12 | Public | 63.9 Top 50% | 87% Math proficiency | 314 |
| 3 | Chamblee High School Chamblee · High · Grades 9–12 | Public | 58.6 Top 50% | 52% Math proficiency | 1,867 |
| 4 | Dunwoody High School Dunwoody · High · Grades 9–12 | Public | 58.3 Top 50% | 43% Math proficiency | 2,012 |
| 5 | Lakeside High School Atlanta · High · Grades 9–12 | Public | 52.8 Top 50% | 43% Math proficiency | 2,234 |
| 6 | Tapestry Public Charter School Doraville · High · Grades 6–12 | Charter | 48.0 Lower 50% | 22% Math proficiency | 300 |
| 7 | Druid Hills High School Atlanta · High · Grades 9–12 | Public | 44.7 Lower 50% | 34% Math proficiency | 1,468 |
| 8 | Arabia Mountain High School - Academy of Engineering- Medic Lithonia · High · Grades 9–12 | Public | 42.6 Lower 50% | 34% Math proficiency | 1,224 |
| 9 | Cross Keys High School Brookhaven · High · Grades 9–12 | Public | 30.4 Lower 50% | 44% Math proficiency | 1,748 |
| 10 | Tucker High School Tucker · High · Grades 9–12 | Public | 26.3 Lower 50% | 26% Math proficiency | 1,614 |
| 11 | Clarkston High School Clarkston · High · Grades 9–12 | Public | 20.1 Lower 50% | 25% Math proficiency | 1,441 |
| 12 | Stephenson High School Stone Mountain · High · Grades 9–12 | Public | 19.5 Lower 50% | 24% Math proficiency | 1,339 |
| 13 | Southwest DeKalb High School Decatur · High · Grades 9–12 | Public | 19.2 Lower 50% | 20% Math proficiency | 1,237 |
| 14 | Cedar Grove High School Ellenwood · High · Grades 9–12 | Public | 18.9 Lower 50% | 26% Math proficiency | 1,121 |
| 15 | Elizabeth Andrews High School Stone Mountain · High · Grades 10–12 | Public | 17.6 Lower 50% | 2.5% Math proficiency | 167 |
| 16 | McNair High School Atlanta · High · Grades 9–12 | Public | 15.6 Lower 50% | 7% Math proficiency | 779 |
| 17 | Miller Grove High School Lithonia · High · Grades 9–12 | Public | 14.7 Lower 50% | 16% Math proficiency | 1,073 |
| 18 | Stone Mountain High School Stone Mountain · High · Grades 9–12 | Public | 13.0 Lower 50% | 12% Math proficiency | 1,254 |
| 19 | Lithonia High School Lithonia · High · Grades 9–12 | Public | 12.2 Lower 50% | 14% Math proficiency | 1,547 |
| 20 | Columbia High School Decatur · High · Grades 9–12 | Public | 11.8 Lower 50% | 7% Math proficiency | 877 |
| 21 | Martin Luther King- Jr. High School Lithonia · High · Grades 9–12 | Public | 11.7 Lower 50% | 12% Math proficiency | 1,370 |
| 22 | Redan High School Stone Mountain · High · Grades 9–12 | Public | 11.5 Lower 50% | 17% Math proficiency | 1,052 |
| 23 | Towers High School Decatur · High · Grades 9–12 | Public | 11.2 Lower 50% | 12% Math proficiency | 876 |
DeKalb School of the Arts in Avondale Estates leads the 2025 list of high schools in DeKalb County with a Success Index (US) of 81.9. Of the 23 schools shown, 22 are public, 1 are charter.
For the full picture see the wider Georgia high schools rankings, every school on the DeKalb County page, or the comparison tool to put a shortlist side by side.
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Frequently asked questions
What is the best high school in DeKalb County?
DeKalb School of the Arts in Avondale Estates, Georgia ranks first among high schools in DeKalb County with a Success Index (US) of 81.9 out of 100 (Enrollment: 298).
How are high schools in DeKalb County ranked?
Each school's Success Index (US) combines 4 factors: math proficiency (30%), reading proficiency (30%), community advantage (fewer free/reduced-price lunch) (25%), students per teacher (15%). Each factor is a percentile against schools of the same type across United States. Schools with fewer than 60 students are excluded from rankings.
Are these 2025 rankings official?
No. They are computed by Success Tutoring from official American data (Urban Institute Education Data Portal (NCES CCD, EDFacts); NCES Common Core of Data). States set their own assessments and proficiency cut scores, so proficiency rates are most comparable within a state. Use the state rankings for like-for-like comparisons.