After Green Bay, New Orleans is the smallest city to have won a Super Bowl. And given that the Green Bay Packers are Milwaukee's team too, New Orleans really ranks as THE smallest city to have won the big game. So here's the quiz: What is the largest U.S. city to have never had an NFL franchise? Los Angeles is the biggest city that currently has no NFL team, but what's the biggest city to never have had an NFL team? The map above is a hint. Answer: San Antonio.