He added the county to a list of four areas designated to get special help from the state.
Blagojevich made the announcement in Tamms after a series of stops in far southern Illinois signing legislation and greeting supporters.
The initiative to combat poverty around the state focuses initially on Pembroke Township near Kankakee, Savanna in northwestern Illinois, a neighborhood in Aurora, and now Alexander County near Cairo.
Alexander County is among the poorest in the state.
The Team Illinois program aims to help the areas with a combination of state services, community support and private-sector partnerships.