Humble Independent School District began over 100 years ago as Harris County Common School District No. 28 with a single one-room schoolhouse. Today, with 46 campuses, more than 48,000 students and over 7,000 employees, Humble ISD is nationally recognized for the outstanding education it offers to students. Humble ISD is the 6th fastest growing school district in Texas out of 1,020 districts, and is currently the 24th largest district in the state.