SEGUIN H S

SEGUIN H S, a sprawling high school in ARLINGTON, Texas, part of ARLINGTON ISD, serves 1,554 students, covering grades 9 through 12. Enrollment runs roughly 95% bigger than the state mean of about 796.

ARLINGTON ISD comprises 75 schools with combined enrollment of 53,394 students; SEGUIN H S is among them.

On the student-mix side, SEGUIN H S shows that the largest single group is Black at 38%, but no single group is in the majority. Beyond that, the school reports 35% Hispanic, 12% Asian, 11% White, 4% multiracial. That is meaningfully more Black than the county at large, where the share is closer to 18%.

On the income-and-resources front, On paper, SEGUIN H S has 111 full-time-equivalent teachers, translating to a class-load average of around 13.9:1. The state averages around 15.1:1, so this campus is tighter than the state norm typical. Around 72% of the student body qualifies for free or reduced-price meals, which schools and policymakers use as a rough income-mix signal. Set against Tarrant County (around 63%), the school's rate is noticeably above typical.

Adjusting for the school's free-and-reduced-lunch share, SEGUIN H S sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 42.6%; this one delivers 48.3%.

In the area at large, Tarrant County reports that median household income runs about $84,207, 35% of adults hold a bachelor's degree or higher, and roughly 8% of residents live below the federal poverty line. In all, Tarrant County runs 639 public schools (combined enrollment of about 385,835 students), of which SEGUIN H S is one.

The closest other public school is PEARCY STEM ACADEMY, roughly 0.4 miles away. Within five miles, there are 8 other public schools. Among the 8 schools in that immediate cluster with test data (this one included), SEGUIN H S ranks 4th on composite proficiency, higher than the local average of 43.5%.

Geographically, the school is in an inner-city area.

Trend over the last 7 years. Looking back 7 years, enrollment at SEGUIN H S has fell 3%, going from 1,596 students in 2018 to 1,554 in 2025.

Within the allk12 community for this school, recent activity here tends to focus on enrollment questions, classroom assignments, and PTA news. Parents, students, alumni, and staff are welcome to weigh in.