In 1962 Grand Saline's Board of Education and the citizens approved the construction of a new high school, new gymnasium and additions to Person's Stadium.
The city of Grand Saline constructed Stadium Drive which was built for access to the new high school.
Renovations would not come again until 1993, when district voters approved a bond issue that built a cafetorium, and added a student commons area in the high school which would connect the gymnasium and the classroom wings and create one building.
In late 1999, due to a steady growth in the district, officials proposed the idea of building a brand new, 7 million dollar, state of the art high school next to the current facility.
In the spring of 2000, voters approved the bond issue and construction began in summer of 2002 and was opened for classes in fall of 2004, with the capacity to house 550 students.
The group was dealt a terrible setback in 2009 when a fire almost destroyed the school, but was rebuilt due to generous donations by the community members.
Currently under renovation Indian Baseball Diamond-Constructed in 2003, the field is home to Grand Saline High School Baseball, one of the premier East Texas programs and also hosts the I-20 classic, along with nearby Van and Canton High Schools.
As of the 2013 School year, Grand Saline ISD was awarded the highest possible rating by the Texas Education Agency's new ranking system, with a ranking report of "Met Standards" on the "core four" categories of Student Achievement, Student Progress, Closing Performance Gaps, and College or post-secondary Readiness.
State target percentages for school districts in Texas to for "Met Standards" for the categories are, respectively, 50, 21, 55, and 75.