HomeSingaporeChoa Chu Kang North 5Choa Chu Kang North 5SingaporeChoa Chu Kang North 5, Singapore: 19 postal codes.Postal codes of Choa Chu Kang North 5680751680752680753680754680755680756680757680758680759680760680761680762680763680764680765680766681754681762689621