This study examines how irrigation water is used for specific fruits, vegetables, and tree nut crops across the continental United States from 2008 to 2020. It estimates surface water use, groundwater use, and unsustainable groundwater depletion for 65 individual fruits, vegetables, and tree nuts at the county level. By breaking down broad irrigation data using crop-specific land use and water needs, the study reveals key regional and crop-level trends. Overall, surface water use has declined nationally, while groundwater withdrawals and depletion have increased, especially in California’s Central Valley. Irrigation is highest in Sunbelt states like California and Florida. Crops such as Almonds, grapes, oranges, walnuts, tomatoes, sugarcane, grass seed, and beans use the most water, while crops like sugarcane, citrus, avocados, and various nuts showed the largest increases in irrigation over time. This is the first national-scale analysis of irrigation by crop, water source, county, and year, offering valuable data for researchers and policymakers.