Construction of the estate to the north of Belfast began in the early 1950s, with records indicating the earliest construction completion date was in 1953.
The first residents moved into their homes at this time.
Membes of RATH Community Group staged a celebration event on August 13 to help mark the momentous milestone.
The event in the Donardview Close area featured a number of family-friendly activities including bouncy castles, pony rides, slides, an assaut course, a video gaming bus, face painting, refreshments and music from a DJ and local flute bands.
Check out these photographs from the festivities.
17. Residents mark major milestone
Friends enjoying the family fun day in Rathcoole. Photo: Peter O'Hara Photography
18. Residents mark major milestone
All smiles at the RATH celebrations. Photo: Peter O'Hara Photography
19. Residents mark major milestone
A young jockey enjoying the pony rides. Photo: Peter O'Hara Photography
20. Residents mark major milestone
Enjoying the inflatables at the Rathcoole fun day. Photo: Peter O'Hara Photography