This dataset documents U.S. geothermal heat pump (GHP) installations and was compiled as part of the 2025 Geothermal Market Report from the National Renewable Energy Laboratory (NREL). Records were sourced primarily from public drilling permits and include location information (city, county, state, and latitude/longitude), installation dates, and basic system characteristics such as capacity, number and depth of boreholes, and configuration. Data reflect publicly available permit information and capture the distribution and characteristics of GHP systems installed across the United States.