Louis E Dieruff HS

Louis E Dieruff HS is a well-populated four-year high school in Allentown, Pennsylvania, part of Allentown City SD. The school caters to 1,914 students in grades 9 through 12. Enrollment runs roughly 159% bigger than the state mean of about 738.

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

On the student-mix side, Louis E Dieruff HS shows that the largest single group is Hispanic, at 74% of enrollment; the rest reads as 11% Black, 9% White, 5% multiracial. The wider county runs roughly 28% Hispanic, putting the school's mix visibly more Hispanic than the area baseline.

In terms of school funding signals, Louis E Dieruff HS logs 115 full-time-equivalent teachers, putting the student-to-teacher ratio at about 16.6:1. Statewide, the average ratio sits near 12.8:1, putting Louis E Dieruff HS higher than the state norm the norm. About 98% of enrolled students meet the income threshold for free or reduced-price lunch, often used as a Title I proxy. That share is above Lehigh County's rate of about 70%.

With demographic context factored in, Louis E Dieruff HS sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 35.4%; this one delivers 24.8%.

In the surrounding community, Lehigh County reports that median household income runs about $80,079, 34% of adults hold a bachelor's degree or higher, and census figures put the poverty rate at about 8%. In all, Lehigh County runs 83 public schools (combined enrollment of about 56,984 students), of which Louis E Dieruff HS is one.

Lincoln Leadership Academy CS is the nearest neighboring public school, about 0.4 miles from this campus. Within five miles, there are 8 other public schools. On composite proficiency, Louis E Dieruff HS comes 4th of 8 in the immediate cluster, beneath the nearby-schools average of 25.7%.

The school occupies a city-core site.

Trend over the last 7 years. Over the past 7-year window, the student count expanded 4%: 1,839 students in 2018 compared to 1,914 in 2025. Over the same period, the White share edged down from 15% to 9%. The student-to-teacher ratio pulled in from 19.2:1 in 2018 to 16.6:1 today.

In the discussion threads here, posts here usually surface around classroom updates, athletics, and weather closures. Parents, students, alumni, and staff are welcome to weigh in.