Summary:
Zip code 20112 in Manassas, Virginia is home to one high school—Charles J. Colgan Senior High—a large grades 9–12 school with 2,956 students in the Prince William County Public Schools district. As the only high school in this zip code, the most meaningful comparisons are against district and statewide averages. Colgan is a standout performer, ranking #28 out of 331 Virginia high schools for 2025-2026, placing it in the 92nd percentile with a 5-star rating.
The school improved dramatically in the most recent year, jumping from #69 to #28 in Virginia—a 41-place climb in state ranking. On Virginia SOL tests, Charles J. Colgan Senior High outperformed the state average on 15 of 17 tests and its district on 16 of 17. Math strength is especially notable among 9th graders: 94.51% proficient in Algebra I, 97.72% in Geometry, and 100% in Algebra II. Science results are also strong, with Biology proficiency ranging from 79% to 95% across grade levels, all above state averages. However, 10th-grade Writing (53.85% vs 64.14% statewide) and 11th-grade Algebra I (76.19% vs 78.64% statewide) remain below the state average.
Beyond test scores, Colgan's retention and engagement metrics are excellent: a 98.3% graduation rate versus 92.3% statewide, a 0.9% dropout rate versus 5.0% statewide, and 12.1% chronic absenteeism—all markedly better than district and state averages. The school spends $9,606 per student with a 17.3:1 student-teacher ratio, and 28.65% of students receive free/reduced lunch. Areas to watch include the large gap between 9th-grade Geometry (97.72%) and 10th-grade Geometry (57.89%), reflecting course-taking patterns, and World History I, which posted 40.91% proficiency versus the 66.63% state average. Overall, Charles J. Colgan Senior High is a high-performing school combining strong academics with outstanding graduation and attendance outcomes.
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