The Congressional Research Service has estimated that in the three states most affected by Hurricane Katrina, there are 55,253 federal (including Postal Service) workers: 3,028 employees are in Alabama; 31,896 employees are in Louisiana; and 20,329 employees are in Mississippi. These workers are employed by some 47 federal agencies. In the affected areas of the three states, the largest number of federal employees work for the Postal Service, the Department of the Army, and the Department of Homeland Security in Alabama and the Postal Service, the Department of Veterans Affairs, and the Department of the Army in Louisiana and Mississippi.