A Canadian Google Maps user is upset that Google Maps no longer shows the correct Canadian postal codes for addresses.
He posted his complaint in a Google Maps Help thread and listed some examples. One example was for the address, 10 Charnby Place, St. Catharines. The postal code should be L2N6Y3 but Google shows L2N6X7.
Mapquest Gets It Right:
But Bing just gives up and lists the L2N only:
The user said Google had it right a couple days ago but something recently changed.
Forum discussion at Google Maps Help.