I know video games operate on a pretty healthy suspension of disbelief, and this post might be against that spirit, but I wanted to see how big GTA V actually was. If the map is meant to represent all of Southern California plus Los Angeles, why not compare it to the real deal? So I did this based on a pretty reasonable consensus that the game's island is about 6 miles long. First, general Southern California region including San Diego Second, the city of Los Angeles: And third and possibly most painfully, a map of Hollywood & Beverly Hills Yep, Hollywood is probably close to 1.5x the size of GTA V's rendition of Los Santos and all of San Andreas could easily fit between Redondo Beach and Marina Del Ray. Sunset boulevard is longer than the entire GTA V map. I guess that's why fighter jets top out at 140mph in the game. California is a big place. Edit: The desert is about the size of the LA Country Club I won't put a picture up, but the Alamo Sea is based on the Salton Sea. Well, the entire San Andreas map could fit in the Salton Sea probably 25 times, to say nothing of the Alamo Sea itself.