In Stone Oak and Sonterra north of Route 1604 and between the Blanco Road and US-281 corridors, this rapid growth caused severe overcrowding at nearby Winston Churchill High School.

The district recognized this problem, and included an allocation to build a new high school in the area as a part of its 1997 bond issue.

A spirit committee selected the mascot "Rattlers" from three finalists and chose green, silver, and black as the school colors.

The opening of Lady Bird Johnson High School in 2008 relieved overcrowding at Reagan as San Antonio's population continued booming in the early part of the 2000s.

[8] Source: Texas UIL Marching Band State Archives[18] * Grand Nationals performance[19] The Reagan Rattlers compete in these sports:[20]