Fort Stewart and Hunter Army Airfield are the home of the 3rd Infantry Division (Mechanized), and combine to be the Army's Premier Power Projection Platform on the Atlantic Coast. It is the largest, most effective and efficient armor training base east of the Mississippi, covering 280,000 acres including parts of Liberty, Long, Tattnall, Evans and Bryan counties in southeast Georgia. A 2006 real estate survey has estimated the population of Fort Stewart, Georgia at 11,000.