The district was created as Coppell Independent School District by a vote of the local citizenry in 1959. In 1927, Dallas County Schools had acquired 6 acres (24,000 m2) of land for $900 upon which to build Pinkerton Elementary, the only campus to serve Coppell children attending kindergarten through the eighth grade. At that time, the total number of students in grades K-8 was about 175.
Until the first high school was built, at what is currently the site for Coppell Middle School West, Coppell students wishing to complete their 9th-12th grade high school education did so in Grapevine. The additional four grades were phased-in beginning with the 9th grade which was added in 1961, then 10th in 1962, 11th in 1963, and the12th grade was added in 1964. Over the years, Coppell has remained a one high school community where Coppell High School's mascot was the "Lions." Once the newly formed professional football team located nearby, the mascot was changed to the Coppell "Cowboys" and has remained so ever since.
Student growth in the district averaged over 16% from the mid-eighties through the late nineties. Today, as the largest employer in Coppell with over 1200 employees, Coppell ISD has fifteen campuses serving nearly 10,000 students in grades K-12 including ten at the elementary level, three middle schools, two high school, and an alternative campus. The CISD has opened a new technically oriented high school, called New Tech High @ Coppell, in the fall of 2008.
Coppell is ranked twelfth among "The Best Places to Live in Dallas" with mean SAT scores earning them third place among 62 suburbs (D Magazine 7/06).
Coppell ISD is ranked #1 in school districts in Texas over 10,000 students for Gold Performance Acknowledgments (GPAs) in 2006. Eighty two acknowledgments for high achievement were awarded across the district by TEA. For the fourth year in a row, CISD has received a Superior Achievement rating based on answering "yes" to each of the 21 indicators included in the Financial Integrity Rating System of Texas (FIRST) program.