According to one urbanplanet.org thread, the Census Bureau has released its 2000-2005 population growth estimates. For Tennessee, those estimates show progressive growth, including +1.2% from 2004 to 2005. For perspective's sake, the state with the largest rate increase in that period in this region is Florida, with +2.3%. Both Georgia and North Carolina are growing faster also at a +1.7% clip, matching Texas's growth rate from 2004 to 2005.
One commenter says that the estimates do not include Davidson County's estimated growth in that time, so the state population may well be above 6 million now, rather than at the 5.96 million Census estimate. The growth is noteworthy, but the most significant question remains: are we managing population growth well or are we virtually becoming a mismanaged and overgrown patch of kudzu, briars, and thistle?