The U.S. Geological Survey, in cooperation with Wake County Environmental Services, initiated a comprehensive groundwater resource investigation to better understand the quantity and quality of groundwater in Wake County, North Carolina. In 2020, as part of the investigation, groundwater records were compiled electronically from 7,689 wells in and within five miles of Wake County and groundwater yield data was interpolated to estimate maximum well yield across the county. Maximum well yield values estimate the maximum well yield possible at a given location; the maximum well yield is not guaranteed and actual well yield likely falls within the range of 0 and the maximum well yield value. This data release includes the well record compilation (well_inventory.csv) and estimated raster surface of maximum well yield (max_well_yield.zip). The well inventory includes the characteristics: well location, well depth, casing depth, and well yield. The data contained in this data release and the methodology for development of the maximum well yield raster is further described in the associated U.S. Geological Survey Scientific Investigations Report (https://doi.org/10.3133/sir20225041).