Overlay map of Cities for the region

Would it be possible to create a map that overlays all the city borders in the region? I run multiple cities in the region and often don’t know precisely what city I’m in- or the city has been mapped. For example, I ran in SeaWorld Orlando this morning and I don’t know if that is included in a city (I thought was before) but can’t figure out what city it would be. I could easily figure this out if city borders were mapped out, it would be beneficial.