Miller Grove Independent School District is a public school district located in the unincorporated community of Miller Grove, in southwestern Hopkins County, Texas, United States. It extends into a small portion of Rains County. Miller Grove ISD operates two schools: * Miller Grove High School (Grades 7-12) * Miller Grove Elementary School (Grades PK-6). In 2009, the school district was rated "academically acceptable" by the Texas Education Agency.