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Trinity Union is zoned to the highly regarded Grapevine-Colleyville Independent School District.  GCISD provides transportation to and from the community.  You can learn more about Grapevine-Colleyville Independent School District and each of our assigned schools below.

School kids holding books

Heritage Elementary School

4500 Heritage, Grapevine, TX 76051

Colleyville Middle School

1100 Bogart Drive, Colleyville, TX 76034

Colleyville Heritage High School

5401 Heritage Avenue, Colleyville, TX 76034


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