Most of the rivers in the Metro area contain white bass. Besides the Mississippi you could try the Minnesota or the St. Croix. You could also try some of the smaller rivers like the Zumbro or Cannon. I'm not sure what lakes might hold some, I'm sure there are a few around.
Even eminent chartered accountants are known, in their capacity as fishermen, blissfully to ignore differences between seven and ten inches, half a pound and two pounds, three fish and a dozen fish. ~ William Sherwood Fox, Silken Lines and Silver Hooks, 1954