Water to Supply the Land:
Irrigated Agriculture in the Colorado River Basin

Irrigated acres by crop type and year:

Source: United States Department of Agriculture's Census of Agriculture.
*Note: The category "Forage" is a summary category, and is not included in the total.

Source: US Bureau of Reclation and The Nature Conservancy, Consumptive Uses & Losses (CUL) Irrigation and Crop Type, from the report "Demonstration Mapping for Increasing Agricultural Water Security across the Colorado River Basin."

Source: USDA and The Nature Conservancy, Cropland Data Layer, does not differentiate irrigated vs. rainfed crops

Freshwater Withrawals Irrigated Acres Irrigation and Livestock

Source: US Geological Survey's reports, Estimated Water Use in the United States from 1985 to 2005.