Does all mail that goes to Utah end up in Salt Lake City and then to the original locations?

I have packages that are supposed to go to a city outside of Salt Lake and it's been said that it's been delivered to Salt Lake. Will the packages get to the actual locations and how long would that take?Does all mail that goes to Utah end up in Salt Lake City and then to the original locations?
If the package is in Salt Lake today, it will arrive at it's intended destination either tomorrow or Monday.