The Houston Astros farm system consists of seven Minor League Baseball affiliates across the United States and in the Dominican Republic.
The longest continuous affiliation in team history was the 21-year relationship with the Double-A Southern League's Columbus Astros/Mudcats from 1970 to 1990.
Geographically, Houston's closest domestic affiliate is the Sugar Land Space Cowboys, which are approximately 20 miles (32 km) away.
Houston's furthest domestic affiliate is the Single-A Fayetteville Woodpeckers of the Carolina League some 1,165 miles (1,875 km) away.
[2] The current structure of Minor League Baseball is the result of an overall contraction of the system beginning with the 2021 season.