Understanding the characteristics and trends of the federal workforce is important because, among other things, agencies accomplish their missions via that workforce. Total personnel costs (direct compensation and benefits) for all federal employees (civilian and military, current employees and retirees) were estimated at more than $523 billion in 2008, and civilian personnel costs in the executive branch alone were estimated at about $194 billion. Three cabinet departments -- the Departments of Defense (DOD), Veterans Affairs (DVA), and Homeland Security (DHS) -- accounted for almost 60% of the nearly 1.9 million executive branch civilian employees in 2008. The duty stations for more than 35% of these employees were in four states (California, Virginia, Texas, and Maryland) and the District of Columbia, and DOD was the top federal employer in 35 states. DOD also employed more than 90% of federal civilian employees in foreign countries, and was the top federal employer in U.S. territories. The federal workforce grew by more than 120,000 employees between 2000 (the low point during the last 10 years) and 2008, with the growth concentrated in homeland security-related agencies and DVA. Civilian employment in other agencies (including DOD and most independent agencies) declined during the last 10 years.