This item provides a complete model archive for an application of the Soil-Water-Balance (SWB) model code to simulate water budget components of the Mississippi Embayment Regional Aquifer System (MERAS) during the period 2000 to 2020. All necessary data, model code, and model input files are provided so the simulations can be recreated. Gridded model outputs that were the basis for the primary publication are also provided. Gridded daily data (1 kilometer resolution) include net infiltration (water that might become groundwater recharge), rejected net infiltration, runoff, irrigation, actual evapotranspiration and gross precipitation Simulations were done with the USGS SWB model (version 2; Westenbroek and others, 2018). The precipitation and temperature data used as input for the SWB model application are derived from PRISM Climate products (PRISM Climate Group, 2020). Further details about this application of the SWB model can be found in the related primary publication