Quick Answer
The state of Leonida is divided into three primary counties in GTA 6: Vice Dale County (urban Vice City and upscale metropolitan coasts), Kelly County (the central agricultural plains and mud flats), and Leonard County (the southern swamplands, Everglades, and Keys).
The 3 Counties of Leonida
1. Vice Dale County
Encompasses metropolitan Vice City, Ocean Drive, Starfish Island, and financial districts patrolled by the Vice City Police Department (VCPD).
2. Kelly County
Agricultural sugarcane heartlands, dirt speedways, and mud rally clubs patrolled by the Kelly County Sheriff's Office (KCSO).
3. Leonard County
The southern frontier, Everglades swamplands, Port Vice, and Gator Keys patrolled by Highway Patrol and Wildlife marine cutters.