Well, technically you can squeeze five people in (I think others have reported piling in more when in dire straits!), but a Jeep Wrangler is supposed to be a 4 passenger vehicle. I don't know that you'd get ticketed, but it's not comfortable to have to ride that way for an entire vacation in my opinion. =O)

Don't try that in a Suzuki jeep.

I highly recommend getting a full-sized car for that many unless you plan to off-road it while there. Our Taurus sedan did just fine, even in the rain, except for a few hairpin turns that made me white-knuckle it! We rented our full-sized car on STT and took the car ferry over.
Sharon

Need to think about carrying luggage also! 🙂