The computer support organization for the Jefferson Parish Administration is comprised of the  Electronic Information Systems Department (EIS), the Management Information Systems Department (MIS), and the  Geographic Information Systems Department (GIS). These departments are complemented by contract vendor firms. In a cooperative effort, they serve the Administrative and Legislative computer user community by maintaining computer hardware and software, developing software applications, and providing computer user training to Parish employees. 

The MIS Department supports the financial system, the payroll system, and the utility billing system. It provides programming support for off-the-shelf applications, as well as in-house custom-written applications. MIS also provides support for all installed hardware, including network equipment, servers, PCs, terminals, printers, etc.

 The GIS Department is responsible for the implementation and support of the Geographic Information System. The GIS Department works with the various parish departments to assist them in carrying out their daily operations.