Houston Astros

Current affiliates of the Houston Astros:
Round Rock Express
Corpus Christi Hooks
Fayetteville Woodpeckers
Quad Cities River Bandits
Tri-City ValleyCats

Current teams that were once affiliated with the Houston Astros:
Asheville Tourists
Durham Bulls
Fresno Grizzlies
Lancaster JetHawks
Lexington Legends

Defunct identities that were at once affiliated with the Houston Astros: