Mariana County

confirmed

Mariana County is a county due to appear in Grand Theft Auto VI, located in the southern region of the State of Leonida.

🎬 Trailer 2 · 2:28

Shown in official material, cross-checked against Rockstar's official material. Updates as more is revealed.

See it on the map →About Grassrivers

What we know about Mariana County

Mariana County was first mentioned on an Interstate 404 sign in Port Gellhorn, alongside Vice-Dale County, in the second trailer (2:28). The county appears to be home to the Grassrivers and Leonida Keys regions of Leonida.

Sourced from Rockstar's trailers and official material via the community knowledge base (gta.wiki, CC BY-SA). Cross-checked against official material.

Real-world inspiration analysis

Mariana County is likely based on Monroe County, Florida, which includes the Everglades and Florida Keys regions of Florida, on which the Grassrivers and Leonida Keys regions are respectively based.

More in Grassrivers

confirmedDaiquiri Republic leakedEast Key leakedGrassrivers confirmedKey Lento confirmedLeonida Keys confirmedLeonida Keys Coast Guard Station

Read before you land in Grassrivers

✅ GTA 6: everything confirmed so far — every fact on the record

8 min read

🗺️ How big is the GTA 6 map? Every confirmed region of Leonida

5 min read

🆚 GTA 5 vs GTA 6 map: how much bigger is Leonida, really?

5 min read

Tracking every Grassrivers reveal — follow the news feedor join the launch list for the full interactive map at launch.