You can ask the Chronicler, or a Storyteller for more detail. Furthermore, you can see at a glance who controls what, and what are the battlelines in LA. If it's really specific stuff, it may require a roll, e.g.:
Is someone I am looking for there? (Wits+Streetwise+Contacts) Who is the top Kindred in the area? (Intelligence+Politics+Influence) Can I purchase guns here? (Charisma+Firearms+Resources/Manipulation+Streetwise+Contacts)
Also, while you are allowed to travel, and have adventures around the world, Domains can only be built inside Districts.
https://www.google.com/maps/d/u/2/edit?mid=1su4gDpttpd-Xkq4KAcKyzMP7zV1esFw&ll=34.07110534416441%2C-118.62841943736973&z=9
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