The Grand Region encompasses 2,694 square miles in northeast Oklahoma, and is supplied by the Grand River and its tributaries.

The Grand Region accounts for 2% of the state�s total water demand. Surface water supplies are used to meet about 42% of the region�s demand. The largest demand sectors are Municipal and Industrial (59%), Livestock (17%), and Thermoelectric Power (12%).

By 2060, this region is projected to have a total demand of 57,550 acre-feet per year (AFY), an increase of approximately 20,250 AFY (54%) from 2010.