The net impacts of climate change on global agriculture are uncertain, due to confounding effects such as elevated levels of atmospheric carbon, increased temperatures resulting in higher evapotranspiration demands, increased variability in precipitation, and increasing events of severe weather1. Increasing the amount of irrigation being applied to crops can compensate for increased evapotranspiration demand, reduce heat stress, and accelerate phenological processes2,3, possibly reducing the negative impacts from a warming climate. In the United States, irrigated area has remained relatively constant over the past two decades, while irrigation intensity has declined as irrigation technology has improved, crop mixes have changed, and shifts in where irrigation is applied has occured4. Overall, it is projected that irrigation may be an adaptation strategy to limit the impacts of climate change on agricultural production. This study utilizes a global biophysical model of the agriculture, forestry, and other land use sectors (GLOBIOM) to assess the potential for intensive and extensive expansion of irrigation applications in the Unites States under a range of projected climate futures. It is shown that irrigated area is expected to expand across most climate change scenarios, while irrigation water consumption increases but at a smaller rate resulting in reduced irrigation intensity on average. Additionally, the location of irrigated cropland shifts with an intensification of irrigation usage in the southern corn belt on acres producing corn; and an extensive expansion of irrigated cropland to produce wheat in the northwest US.