Government security clearances working there in the '60s, this base was guarded and protected by the 516th Military Police Company, U.S. Army Materiel Command. Armed with .45 caliber sidearms, 12 gauge pump-action shotguns, state-of-the-art electronic surveillance systems, gas masks, etc. as standard daily issue, these 300 highly educated and very well trained MP's ensured 24/7 safety and security for all concerned. The 516th's primary mission, however, was to operate and defend what was then known as the "J Area" - where the munitions were actually stored and handled by civilian employees. Nothing went in or out of the J Area without MP scrutiny - including employee lunch boxes. By 1995, the Savanna Army Depot was identified by U.S. Congress as one of the bases that would be closed under the Base Realignment and Closure Act or BRAC. On March 18, 2000, the Savanna Army Depot was closed. The Jo-Carroll Depot Local Redevelopment Authority (LRA) was established in 1997 by an intergovernmental agreement between the Illinois counties of Jo Daviess and Carroll to redevelop the former Savanna Army Depot. These are some of the many companies that have chosen an area onsite called "Savanna Depot Park" as their home. Area 51 LLC, a grain bin operation Bryer Productions, a photography business Commander’s House at the Savanna Army Depot, owned by A&B Holdings, plans are to make the house a destination for corporate and family retreats Depot Electric Supply Fluidic MicroControls, which is doing research and development on micro turbines Illinois Information Management, which is leasing its space for office use Illinois International Trade Center, operated by the Jo-Carroll Foreign Trade Zone Jeanblanc International Inc, which specializes in advanced environmental technologies for the oil industry Midwest 3PL (Third Party Logistics), a full-service warehousing operation Rescar, a railcar repair company. Riverport Railroad LLC, which services, repairs and stores railcars as well as coupling long lines of rail cars for the BNSF Savanna Stables, which owns former barracks and a barn that SolRWind plans to lease or buy Speer Recycling, a metal recycler Geography Savanna is located at (42.090069, -90.140050). According to the 2021 census gazetteer files, Savanna has a total area of , of which (or 96.53%) is land and (or 3.47%) is water. Demographics As of the 2020 census there were 2,783 people, 1,503 households, and 666 families residing in the city. The population density was . There were 1,604 housing units