Source: Independent Political Report
The leaders of Libertarian Booster PAC, Wes Benedict and Arthur DiBianca, suggest that Travis County, Texas is the most Libertarian large county in America.
(“Large” defined as 100,000 or more total votes for president in the November 2012 election. That includes roughly 250 counties.)
Based on the 2010 census, Travis County is the 39th-largest county in the U.S. with a population of 1,024,266.
Some 2012 stats to consider: