Greencastle-Antrim SHS

Set in Greencastle, Pennsylvania, Greencastle-Antrim SHS is a mid-sized 9-12 campus, one of the schools within Greencastle-Antrim SD. It serves 982 students across grades 9 through 12. That puts it 33% above the typical public school in Pennsylvania, which averages around 738 students.

Within Greencastle-Antrim SD, which oversees 4 schools and 2,911 students, Greencastle-Antrim SHS is one campus in the system.

On the student-mix side, Greencastle-Antrim SHS records that nearly all students (86%) are White. Other groups include 6% Hispanic, 4% multiracial, 2% Black. That mix tracks the wider county fairly closely.

In terms of school funding signals, The school employs 56 full-time-equivalent teachers, for a student-teacher ratio near 17.5:1. The state averages around 12.8:1, so this campus is higher than the state norm typical. An estimated 38% of students are eligible for free or reduced-price lunch, a number frequently used as a low-income enrollment indicator. Set against Franklin County (around 69%), the school's rate is somewhat below typical.

After controlling for student poverty, Greencastle-Antrim SHS tracks the demographic baseline. The model predicts 61.1% given the school's FRL share; actual proficiency is 60.5%.

In the broader community, community-level numbers for Franklin County indicate median household earnings sit near $77,003, roughly 25% of adults have completed at least a four-year degree, and roughly 6% of residents live below the federal poverty line. In all, Franklin County runs 41 public schools (combined enrollment of about 21,432 students), of which Greencastle-Antrim SHS is one.

The closest other public school is Greencastle-Antrim MS, roughly 0.1 miles away. 3 of the 8 nearest public schools sit inside a five-mile radius. Ranking that nearby cluster on reported proficiency puts Greencastle-Antrim SHS at 2nd of 8; the average score across the group is 54.5%.

Geographically, the school is in a residential area.

Five-year trend. Over the past 7-year window, the student count expanded 8%: 911 students in 2018 compared to 982 in 2025.

On allk12, posts here usually surface around classroom updates, athletics, and weather closures. Members of the school community can share what they know.