William Allen HS

Set in Allentown, Pennsylvania, William Allen HS is an expansive senior high, operated by Allentown City SD. It hosts 3,074 students across grades 9 through 12. That puts it 317% bigger than the typical public school in Pennsylvania, which averages around 738 students.

Allentown City SD runs 23 schools in total, collectively educating 16,674 students. William Allen HS is one of those campuses.

Demographically, William Allen HS shows that 75% of the student body identifies as Hispanic. Other groups include 13% Black, 5% White, 5% multiracial. By comparison, Lehigh County as a whole is about 28% Hispanic, so the school skews considerably more Hispanic than its surroundings.

On the income-and-resources front, The school lists 153 full-time-equivalent teachers, for a student-teacher ratio near 20.1:1. That figure is higher than the state norm's 12.8:1 average. About 99% of enrolled students meet the income threshold for free or reduced-price lunch, a commonly cited indicator of low-income enrollment. Set against Lehigh County (around 70%), the school's rate is north of typical.

With demographic context factored in, William Allen HS performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 35.1%, the actual is 21.3%, a residual of -13.9 points.

In the area at large, census data for Lehigh County shows median household earnings sit near $80,079, 34% of adults hold a bachelor's degree or higher, and the poverty rate sits near 8%. In all, Lehigh County runs 83 public schools (combined enrollment of about 56,984 students), of which William Allen HS is one.

Nearest neighbor: Francis D Raub MS, around 0.3 miles off. 8 of the 8 nearest public schools sit inside a five-mile radius. Among the 5 schools in that immediate cluster with test data (this one included), William Allen HS ranks 3rd on composite proficiency, beneath the local average of 22.0%.

William Allen HS operates from a downtown location.

Five-year trend. Looking back 7 years, enrollment at William Allen HS has climbed 12%, going from 2,747 students in 2018 to 3,074 in 2025. The White share of enrollment decreased from 10% to 5% over that span. The student-to-teacher ratio grew from 18.6:1 in 2018 to 20.1:1 today.

On this page, the feed for William Allen HS typically covers enrollment questions, classroom assignments, and PTA news. The community welcomes input from current and former families.