What is the zip code of canada hamliton?

There's not just 1 postcode for the whole area. Wikipedia says the postcode span is: L8E to L8W, L9A to L9C, L9G to L9H, L9K

You can find postcodes in Canada using the Canadian Post website: http://www.canadapost.ca/cpotools/apps/fpc/personal/findByCity?execution=e2s1