Williamson County, Texas

The population data for Williamson County come from three sources. Population counts for 1990 are from the 1990 decennial census (SF1 files). The population counts for 2000 are from the U.S. Census Bureau's population estimates program (http://www.census.gov/popest/). Those estimates are the April 1, 2000, base for the vintage 2009 county population estimates, which may differ slightly from the 2000 decennial census counts because of post-enumeration corrections. The 2014 population counts are from the U.S. Census Bureau’s population estimates and are as of July 1 of that year.

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  1990 2000 2014
Hispanic population Rank 20,004 132 42,990 123 117,119 88
Total county population 139,551 249,967 489,250
Hispanics as percent of county population Rank 14% 243 17% 289 24% 302
  Change
from 1990
Change
from 2000
Hispanic population change Rank   22,986 105 74,129 56
Percent change in Hispanic population Rank   115% 1,380 172% 596