Groundwater in the arid Mountain Home area is vital to agricultural, municipal, industrial and other water users who are concerned about declining groundwater levels. The U.S. Geological Survey, in cooperation with the Idaho Department of Water Resources (IDWR), developed a hydrogeologic framework to provide a conceptual understanding of groundwater resources in the Mountain Home area. As part of the hydrogeologic framework, water-table contour and groundwater-level change maps were produced to describe the occurrence, movement, and change in groundwater. Water-table contours for spring 2023 (March 20 to 24, 2023) and autumn 2023 (November 1 to 7, 2023) were created for the regional aquifer and perched groundwater zone in the Mountain Home area. The well numbers and station names for sites used to create the water-table contours and groundwater-level change and groundwater storage change rasters are provided in this data release. The ___location, depth to water, and groundwater altitude for these wells can be accessed on USGS National Water Information System (NWIS), IDWR groundwater portal, or an annual water level monitoring report for IDWR permit 61-12090 (HDR, 2024). The interpreted 50-foot contours of the water table are also provided in this data release. The contours are referenced to the North American Vertical Datum of 1988 (NAVD 88). The water-table contours are divided into two water-bearing units - regional and perched groundwater zone - based on well depth and groundwater altitude. The water-table contours ranged from 2,350 to 3,650 feet above NAVD 88. The groundwater-level change at well sites from spring to autumn 2023 were interpolated over the study area and are provided in a raster. Groundwater-level change ranged from 22.01 ft decline to 15.44 ft rise. Groundwater-level change was multiplied by hydrogeologic unit storativity to estimate groundwater storage change from spring to autumn 2023. More information on the generation of the water-table contours, groundwater change maps, and perched groundwater delineation and limitations can be found in the companion report, SIR 2024-5124 (Hydrogeologic framework of the Mountain Home area, southern Idaho by L.M. Zinsser and S.D. Ducar).