Las Vegas Named Dumbest City in U.S. Posted Wednesday, October 27, 2010 by sroeben in Las Vegas, Nonsense. 4 Comments. The Daily Beast Web site has named Las Vegas the dumbest major city in the U.S. We’re not really sure what they mean by that. No related posts. About The Author sroeben View Posts « Today’s Random Vegas Photographic Gloriousness Our Gratuitous “Halloween in Vegas” Thingy » Dont I think they are right!! The proof is seeing how many Sharron Angle signs are littering this town!!! Anonymous Oh, snap! Travis i dont agree with that! Anonymous Thanks for the vote of confidence, Travis!