$12,200. Age: If you are age 65 or older, you may increase your standard deduction by $1,550 if you file single or head-of-household. If you are married filing jointly and you OR your spouse is 65 or older, you may increase your standard deduction by $1,200.
Davidson County is a county located in the U.S. state of Tennessee. As of the 2010 census, the population was 626,681, making it the second-most populous county in Tennessee. Its county seat is Nashville, the state capital.
Population Projections â The current population estimate for Shelby County as a whole. is 869,379. Based on projections compiled by the MPO, the University of Tennessee and. the municipalities of Shelby County, the Shelby County Coordinating Committee. adopted a 20 year population estimate of 1,106,570.