Not only is there a US Moon Colony but it is housed in the abandoned Nazi Moon Colony that was established back in 1943.
In addition, China also has a colony on the far side of the moon and just recently sent the latest technology upgrades to keep it even more advanced than the US colony. The resupply mission was even widely reported although it was claimed to only be a rover lunar exploration. The rover was only necessary since the Chinese colony was a considerable distance from their lunar landing spot.
Edited by jar, : +t