Best Public Schools in Zip Code 28756

Zip code 28756, serving the Mill Spring area of North Carolina, contains three public schools from the Polk County Schools district: two elementary schools covering PK–5 and one middle school for grades 6–8, with no high school located within the zip code. Of these, Polk County Middle School is the largest (454 students) and the top-ranked school in the area, though its state ranking has slipped from the 77th percentile in 2023–24 to the 61st percentile in 2025–26. The middle school is a strong performer in 8th-grade reading (72% proficient vs. 56.1% statewide) and science (76.7% vs. 68.6%), while math scores in every grade remain slightly below the state average. Its chronic absenteeism rate of 31% is the highest in the zip code and well above the state’s 24.2%, which may be a factor in its recent decline.

Sunny View Elementary School is the smallest school (120 students) and stands out as the academic bright spot at the elementary level, especially in math and reading in grades 3 and 4. Its 4th-grade math proficiency of 90% and 4th-grade reading proficiency of 80% far exceed state averages, and it has the best attendance record in the zip code (18.5% chronic absenteeism). However, 5th-grade results drop dramatically, with reading at 47.1% and science at 47.1% — 20.6 points below the state in science — a volatility likely tied to its small cohort size. Meanwhile, Polk Central Elementary School, the largest elementary school at 379 students, is the lowest-ranked school in the area, dropping to a 2-star rating with several scores below state averages, particularly 3rd-grade math (56.5% vs. 66.4%) and 3rd-grade reading (48.4% vs. 55.6%).

All three schools serve extremely high-poverty populations, with free/reduced lunch eligibility above 97%, yet outcomes vary widely across subjects and grade levels, suggesting factors like attendance, school size, and per-student spending play meaningful roles. Sunny View’s success in the early grades, Polk County Middle’s strength in 8th-grade literacy and science, and Polk Central’s recent struggles create a mixed picture for parents. Grade-level performance swings of 10 to 20 points from year to year are common across all three schools, making single-year data less reliable for judging quality. Parents looking at the area should also note that high school students must leave zip code 28756, and that chronic absenteeism at Polk County Middle and Polk Central deserves attention as a potential area for improvement.