[2] Juan Seguin High School first opened in August 2002 and received formal dedication in November of that year.

Juan Seguin High School has an enrollment of 1,627 students in grades 9-12 with a very diverse population.

Juan Seguin High School is fully accredited by Texas Education Agency (TEA).

Since then, Seguin has notably improved academic performance every year, working toward the credentials of a premiere school.

Juan Seguin actively participates in UIL Academics, which includes computer science, math, calculators, number sense, accounting, science, social studies, current events, computer applications, speech and debate, poetry/prose, and one-act play.

Other UIL activities at Seguin include: choir, orchestra, band, baseball, basketball, cheerleading, cross country, football, golf, gymnastics, softball, soccer, swimming, tennis, track and field, volleyball, and wrestling.