Summary:
ZIP code 30518, covering Buford and Sugar Hill in Gwinnett County, Georgia, is served by 11 schools—6 elementary, 3 middle, and 2 high schools—spanning two districts: Gwinnett County (ranked 66th in the state) and Buford City (ranked 2nd), creating a unique mix of large-county and elite city-system options for roughly 14,200 students.
The standout performer is North Gwinnett Middle School, ranked 20th in Georgia with near-universal proficiency in Algebra I (98.1%) and Biology (96.9%), plus a remarkably low 4.2% chronic absenteeism rate. Buford High School is equally impressive, ranking 23rd statewide with a 93.3% graduation rate and strong science scores. White Oak Elementary School is the hidden gem of the Gwinnett side, outperforming even the Buford City elementary schools in 5th grade math (76% vs. 68.5%) and science (80% vs. 69.7%) despite serving a more diverse population. At the other end, Sycamore Elementary School lags the area with 44.1% math proficiency and the highest poverty rate (61.7% free/reduced lunch), though it has improved its state rank by 167 spots in two years.
The most striking contrast is between the two high schools: Lanier High School actually graduates students at a slightly higher rate (94.8%) than Buford High, yet its chronic absenteeism is 25.1%—nearly triple Buford's 9.7%—suggesting many students are earning diplomas while missing significant instruction. Attendance is the clearest predictor of success here: the top-ranked schools (North Gwinnett Middle, White Oak) have absenteeism below 5%, while the lower performers (Lanier High, Sycamore) exceed 10%. Notably, all three middle schools achieve 100% proficiency in Algebra I for accelerated students, but overall math proficiency varies widely, from North Gwinnett's 81.5-87.7% down to Lanier Middle's 59.5-65.2%. Spending per student does not correlate with outcomes—North Gwinnett Middle spends the least ($11,953) yet achieves the best results, while Buford Elementary School spends the most ($23,993) but serves only PK-K students with no test scores.
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