HomeSingaporeChoa Chu Kang North 6Choa Chu Kang North 6SingaporeChoa Chu Kang North 6, Singapore: 34 postal codes.Postal codes of Choa Chu Kang North 6680553680554680555680556680557680558680559680560680561680631680632680633680634680635680636680637680788680789680790680791680792681559681632681792682787682792689574689575689576689577689578689579689580689581