Seagoville High School serves the DISD portion of the city of Seagoville, as well as small parts of Dallas (including Kleberg) and the DISD portion of the city of Combine.

The community of Wright Farms,[5] located in Dallas, is assigned to Seagoville High School.

[9] The school song is "Dear Old Seagoville High", written by Brother William Greenhaw in the 1940s.

[7] J. M. Skogen, author of On the Hardwood: Portland Trail Blazers, wrote that Seagoville High had "a great sports program".

"[15][16] In 2015 Seagoville High's administration in-school suspended a student who wore an American flag T-shirt to school.