Best high schools in Gwinnett County (2025)
Schools classified as high schools by NCES. Ranked by the Success Index (US) from official American data; 25 schools in Gwinnett County, Georgia. Rank positions shown on each profile are within United States and Georgia.
- 183Gwinnett School of Mathematics- Science and TechnologyLawrenceville · Public High99.5% Math proficiency · 1,304 students
- 279North Gwinnett High SchoolSuwanee · Public High76% Math proficiency · 3,033 students
- 373Mill Creek High SchoolHoschton · Public High70% Math proficiency · 2,782 students
- 465Brookwood High SchoolSnellville · Public High65% Math proficiency · 3,803 students
- 558Peachtree Ridge High SchoolSuwanee · Public High56% Math proficiency · 3,155 students
- 657Grayson High SchoolLoganville · Public High57% Math proficiency · 3,627 students
- 755Lanier High SchoolSugar Hill · Public High50% Math proficiency · 1,871 students
- 855Parkview High SchoolLilburn · Public High59% Math proficiency · 3,216 students
- 952Mountain View High SchoolLawrenceville · Public High54% Math proficiency · 2,221 students
- 1051Archer High SchoolLawrenceville · Public High44% Math proficiency · 3,058 students
- 1151Collins Hill High SchoolSuwanee · Public High43% Math proficiency · 2,485 students
- 1249Dacula High SchoolDacula · Public High53% Math proficiency · 2,481 students
- 1348Duluth High SchoolDuluth · Public High50% Math proficiency · 2,556 students
- 1447Seckinger High SchoolBuford · Public High44% Free/reduced-price lunch · 2,318 students
- 1545Paul Duke STEM High SchoolNorcross · Public High39% Math proficiency · 1,509 students
- 1640Norcross High SchoolNorcross · Public High34% Math proficiency · 2,317 students
- 1737Central Gwinnett High SchoolLawrenceville · Public High35% Math proficiency · 2,414 students
- 1832South Gwinnett High SchoolSnellville · Public High31% Math proficiency · 2,639 students
- 1931Shiloh High SchoolSnellville · Public High26% Math proficiency · 2,096 students
- 2031Berkmar High SchoolLilburn · Public High29% Math proficiency · 2,975 students
- 2130Discovery High SchoolLawrenceville · Public High30% Math proficiency · 2,703 students
- 2228Meadowcreek High SchoolNorcross · Public High28% Math proficiency · 2,609 students
- 2323Gwinnett Intervention Education Center (GIVE) WestNorcross · Public High11% Math proficiency · 227 students
- 2422McClure Health Science High SchoolDuluth · Public High85.7% Free/reduced-price lunch · 1,237 students
- 2514International Transition CenterLawrenceville · Public High2.5% Math proficiency · 640 students
| # | School | Sector | Success Index (US) | Key result | Students |
|---|---|---|---|---|---|
| 1 | Gwinnett School of Mathematics- Science and Technology Lawrenceville · High · Grades 9–12 | Public | 83.1 Top 5% | 99.5% Math proficiency | 1,304 |
| 2 | North Gwinnett High School Suwanee · High · Grades 9–12 | Public | 79.2 Top 10% | 76% Math proficiency | 3,033 |
| 3 | Mill Creek High School Hoschton · High · Grades 9–12 | Public | 73.0 Top 25% | 70% Math proficiency | 2,782 |
| 4 | Brookwood High School Snellville · High · Grades 9–12 | Public | 65.3 Top 50% | 65% Math proficiency | 3,803 |
| 5 | Peachtree Ridge High School Suwanee · High · Grades 9–12 | Public | 57.9 Top 50% | 56% Math proficiency | 3,155 |
| 6 | Grayson High School Loganville · High · Grades 9–12 | Public | 56.5 Top 50% | 57% Math proficiency | 3,627 |
| 7 | Lanier High School Sugar Hill · High · Grades 9–12 | Public | 55.1 Top 50% | 50% Math proficiency | 1,871 |
| 8 | Parkview High School Lilburn · High · Grades 9–12 | Public | 54.9 Top 50% | 59% Math proficiency | 3,216 |
| 9 | Mountain View High School Lawrenceville · High · Grades 9–12 | Public | 52.4 Top 50% | 54% Math proficiency | 2,221 |
| 10 | Archer High School Lawrenceville · High · Grades 9–12 | Public | 51.2 Top 50% | 44% Math proficiency | 3,058 |
| 11 | Collins Hill High School Suwanee · High · Grades 9–12 | Public | 50.5 Top 50% | 43% Math proficiency | 2,485 |
| 12 | Dacula High School Dacula · High · Grades 9–12 | Public | 48.8 Lower 50% | 53% Math proficiency | 2,481 |
| 13 | Duluth High School Duluth · High · Grades 9–12 | Public | 47.7 Lower 50% | 50% Math proficiency | 2,556 |
| 14 | Seckinger High School Buford · High · Grades 9–12 | Public | 47.2 Lower 50% | 44% Free/reduced-price lunch | 2,318 |
| 15 | Paul Duke STEM High School Norcross · High · Grades 9–12 | Public | 44.6 Lower 50% | 39% Math proficiency | 1,509 |
| 16 | Norcross High School Norcross · High · Grades 9–12 | Public | 40.2 Lower 50% | 34% Math proficiency | 2,317 |
| 17 | Central Gwinnett High School Lawrenceville · High · Grades 9–12 | Public | 36.8 Lower 50% | 35% Math proficiency | 2,414 |
| 18 | South Gwinnett High School Snellville · High · Grades 9–12 | Public | 31.9 Lower 50% | 31% Math proficiency | 2,639 |
| 19 | Shiloh High School Snellville · High · Grades 9–12 | Public | 31.3 Lower 50% | 26% Math proficiency | 2,096 |
| 20 | Berkmar High School Lilburn · High · Grades 9–12 | Public | 30.9 Lower 50% | 29% Math proficiency | 2,975 |
| 21 | Discovery High School Lawrenceville · High · Grades 9–12 | Public | 29.9 Lower 50% | 30% Math proficiency | 2,703 |
| 22 | Meadowcreek High School Norcross · High · Grades 9–12 | Public | 27.5 Lower 50% | 28% Math proficiency | 2,609 |
| 23 | Gwinnett Intervention Education Center (GIVE) West Norcross · High · Grades 6–12 | Public | 22.5 Lower 50% | 11% Math proficiency | 227 |
| 24 | McClure Health Science High School Duluth · High · Grades 9–12 | Public | 21.9 Lower 50% | 85.7% Free/reduced-price lunch | 1,237 |
| 25 | International Transition Center Lawrenceville · High · Grades 6–12 | Public | 14.1 Lower 50% | 2.5% Math proficiency | 640 |
Gwinnett School of Mathematics- Science and Technology in Lawrenceville leads the 2025 list of high schools in Gwinnett County with a Success Index (US) of 83.1. Of the 25 schools shown, 25 are public.
For the full picture see the wider Georgia high schools rankings, every school on the Gwinnett 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 Gwinnett County?
Gwinnett School of Mathematics- Science and Technology in Lawrenceville, Georgia ranks first among high schools in Gwinnett County with a Success Index (US) of 83.1 out of 100 (Enrollment: 1,304).
How are high schools in Gwinnett 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.