If you're using Rockstar canon, Florida is still Florida, not Flores, also Alderney is a separate state from Liberty City or the State of Liberty
I also used all provided R* canon and "thinking" for city names and to map this out (like Yankton being the Canadian border, Bully, stats, etc.. I was even able to include the "Four Corners" landmark) So as much as the states and overall shape may look like actual America, trust me, it looks NOTHING like actual America... Kinda how R* does it (I'd like to believe at least lol).... So here she is:
....and there's a South Yankton as well... Fully aware...
State of Liberty is the wikia name... Everybody should stop getting their info from GTA wikia... Most of it is wrong and it's just fans adding what they feel is canon, ex: Sasquatch Creek in SA is NOT the name of the river between Back 'o Beyond and Whetstone, it's called Shady Creek but not according to GTA Wikia be cuz fans renamed it due to the Bigfoot conspiracies (which were fake as well)
Common knowledge that VC was a reskin of III and quickly made... Most ppl (especially then) attributed the naming of Florida as an oversight/developer neglect.... Nobody holds that as canon... I'm pretty sure R* is going to rename "Florida" to something else if VC was redone... (Not necessarily Flores)
As for Alderney... We never got confirmation if whether or not that IS in fact ALL of Alderney or if it's just its LC metropolitan area (like in RL, Newark is part of NY metro... Part of Jersey is called West New York)... Until then, I figured welp, Alderney is just a part of New Liberty...
GTA Wikia is the worst... I suggest you play every GTA instead of wikia