Old Mill High

As a well-populated 9-12 campus in Millersville, Maryland, Old Mill High hosts 1,832 students from grades 9 through 12, overseen by Anne Arundel County Public Schools. That puts it 55% above the typical public school in Maryland, which averages around 1,185 students.

Within Anne Arundel County Public Schools, which oversees 125 schools and 85,029 students, Old Mill High is one campus in the system.

On the student-mix side, Old Mill High shows that the most-represented group is Black (36%), with the rest of the student body spread across multiple groups. Other groups include 27% White, 25% Hispanic, 7% multiracial, 4% Asian. That is considerably more Black than the county at large, where the share is closer to 18%.

On the income-and-resources front, Staff filings list 117 full-time-equivalent teachers, which works out to roughly 15.7:1 students per teacher. That tracks the state average closely. About 56% of enrolled students meet the income threshold for free or reduced-price lunch, a commonly cited indicator of low-income enrollment. Set against Anne Arundel County (around 42%), the school's rate is noticeably above typical.

With demographic context factored in, Old Mill High performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 41.1%, the actual is 34.5%, a residual of -6.5 points.

Zooming out to the county, community-level numbers for Anne Arundel County indicate the typical household earns roughly $124,911 per year, about 46% of the adult population holds a bachelor's degree or above, and census figures put the poverty rate at about 4%. In all, Anne Arundel County runs 129 public schools (combined enrollment of about 85,074 students), of which Old Mill High is one.

Old Mill Middle North is the nearest neighboring public school, about 0.1 miles from this campus. 8 of the 8 nearest public schools sit inside a five-mile radius. Ranking that nearby cluster on reported proficiency puts Old Mill High at 4th of 7; the average score across the group is 34.5%.

The campus sits in a suburban setting.

Five-year trend. Old Mill High's enrollment has fell 18% since 2018, when it stood at 2,230 (now 1,832). Over the same period, the White share contracted from 41% to 27%. Class-load math has pulled in: from 17.1:1 in 2018 to 15.7:1 in 2025.

Inside the community feed, recent activity here tends to focus on sports schedules, lunch menu changes, and school spirit week. Anyone with firsthand experience at this school can post or comment.