Apple synthesizes a lot of geographic data to produce the streets, features, and labels on its maps. The Maps app in iOS and macOS is exhaustive, but not always correct.
(This is contrary to the Hitchhiker’s Guide to the Galaxy, which maintains, “where it is inaccurate it is at least definitively inaccurate. In cases of major discrepancy it’s always reality that’s got it wrong.”)
If you find an errant label, such as your city or region mislabeled, an incorrect street name, or other details, Apple does let you report it, though you may have not realized you could.
How to Report an Issue in iOS Maps
In Maps for iOS, tap the info (i in a circle) button in any view, then tap Report an Issue. You can pick the kind of issue you want, like Map Labels, select the errant data from a map that appears, tap Next, and finally fill out a description of what’s wrong.