(For those who saw the previous answer, Yuki kindly pointed out I’d forgotten about the license plates used in MK Specials, oops!)
Anon sent this part of the question previously:
“Tokyo is a pretty big city right? I get so easily lost on names lol can you tell me which division Nakamori and Megure are in? And also how far apart are they from each other (like an hour away or so like that kind of thing)? Thanks!”
For info on the Tokyo Metropolitan Police Department characters and their divisions, check out this page on the DCW Wiki: http://www.detectiveconanworld.com/wiki/Tokyo_Metropolitan_Police#Members
Specifically, Megure is Division 1 (Homicide) and Nakamori is Division 2 (Criminal Affairs). Both are Rank 6.
Beika is implied to be a Special Ward of Tokyo…I think. (Or maybe just a large city…) It pretty much takes the place of Shinjuku, Tokyo, Japan in real life.
Ekoda is similarly implied to be a Special Ward or at least a city within one. If you go based on the license plates in the Magic Kaito specials, Ekoda takes the place of Minato, Tokyo, Japan.
However!There is a real life Ekoda Station in Nerima and then there’s Egota Park (uses the same kanji) which is in Nakano. Which Special Ward is right out of the three? Notta clue! (But the way I see it, Nerima = Ranma ½ headcanons and Minato = Sailor Moon headcanons, so everybody wins!)
According to Google, the distance between Shinjuku and Minato is 30 minutes give or take via car/train. For Shinjuku to Nerima/Nakano is about 30 minutes give or take via car/train.
And for further trivia, Shibuya, where Ran and Sonoko encountered Kaito and Aoko before the Black Star heist is about 20 minutes by car/train from Shinjuku, 30 minutes by car/train from Minato, and 35 minutes by car/train from Nerima/Nakano.