Warren County saw modest growth over the past decade, according to recently released U.S. Census Bureau statistics, which show the local Hispanic population increased by over 3 percent.The census information, officially collected in 2010 and now being organized into a series of specialized reports, shows Warren County’s population increased to 39,839 by 2010, compared to 38,276 during the 2000 census. The increase was modest, but near the state average Counties to the north, such as Williamson and Rutherford counties, again saw large jumps in population just as they did during the 2000 census count. Meanwhile, just to the south, Grundy County was one of a handful of Tennessee counties which saw a decrease in population over the 10-year period.In breaking down the numbers, the vast majority of Warren countians were found to be white, or reported white as their main description of background, with 86 percent listed as Caucasian.