Reddit user Zocom7 has recreated the entire GTA San Andreas map in Cities: Skylines. The locations are highly detailed and include all the important sight of the state.
The state has a population of over 170,000 people. Zocom added that it used all the DLC for Cities Skylines and mods that make it easier to create locations to recreate the map.
Zocom7 combined various buildings from the game to recreate some of the facilities. For example, he used a stadium, a parking space, a college and an amusement park to create the Las Venturas airport.