Savannah 's unemployment rate is 8.4 percent , well below the national rate of 9.7 , thanks to the throngs of tourists who wander the city 's sprawling historic district , the bustling port and the city 's proximity to major military installations , including Fort Stewart , Ga . , and the Marine Corps installation at Parris Island , S.C. The stimulus plan has played a role , too , although not everyone recognizes its impact .