Summary:
Zip code 20110 (Manassas, Virginia) contains just one high school: Osbourn High. This large, four-year public school serves 2,301 students in grades 9-12 and is part of the Manassas City Public Schools district, which ranks 125th out of 131 Virginia districts, placing it in the bottom 5% statewide. Osbourn spends $10,941 per student with a student-teacher ratio of 16.7 to 1, and 77.53% of its students qualify for free or reduced-price lunch, indicating a high-poverty population.
Osbourn High currently ranks 315th out of 331 Virginia high schools, placing it in the 5th percentile with a 0-star rating — a slight decline from the 7th percentile in the prior two years. Its graduation rate is 84.4%, well below the state average of 92.3%, while the dropout rate of 12.6% is more than double the state's 5.0%. Chronic absenteeism is also a major concern: 32.0% of students are chronically absent versus 14.8% statewide. Despite these challenges, Osbourn posts some notable academic bright spots, including outstanding 9th-grade Geography (89–100% proficient), strong 9th-grade Algebra II results, and 10th-grade English Reading and Earth Science scores that exceed state averages.
The most pressing academic weaknesses are in Biology, upper-grade English Reading, and Algebra I. Biology proficiency falls 30 to 50 points below state averages, with only 25.86% of 12th graders proficient in 2025-2026. Eleventh-grade reading scores are also strikingly low — just 42.28% proficient compared to the state's 88.13% — a 46-point gap. Algebra I proficiency is consistently below the state in nearly every grade and year, with 10th grade at 45.38% versus the state's 69.95% in 2025-2026. Since Osbourn is the only high school in 20110, no peer comparisons exist within the zip code, but the data clearly points to attendance, dropout prevention, and targeted instructional support in Biology, Algebra I, and upper-grade reading as the most urgent priorities.
Thank you for your feedback!