 In 2000, as Florida's 6th and the nation's 53rd most populous county, Pinellas has a population greater than that of the individual states of Wyoming, Montana, Delaware, South Dakota, Alaska, North Dakota, and Vermont, as well as the District of Columbia.With a population density (as of the 2000 Census) of 3292 inhabitants/mi2, Pinellas County is by far the most densely populated county in the state, more than double that of Broward County, the next most densely populated.As of 2010, 87.17% of all residents spoke English as their first language, while 5.56% spoke Spanish, 0.78% Vietnamese, 0.70% French, 0.65% Greek, 0.56% German, and 0.52% of the population spoke Serbo-Croatian as their mother language.