This dataset contains information on the soil particle size distribution, electrical conductivity, total carbon, and inorganic carbon in the form of CaCO3 for the topsoil (0-15cm) from the Countryside Survey monitoring programme spanning the years 2018 to 2023. This period includes the five years, along with the pilot year, required to finalize the sampling across the geography of Great Britain. Additionally, it includes the aggregate size distribution and stability for the CS2019. UKCEH Countryside Survey is the longest integrated national monitoring programme of the countryside for Great Britain, which began in 1978. The results provide a unique insight into how our plants, soil, woodlands and small water bodies have changed over time. Full details about this dataset can be found at https://doi.org/10.5285/6893097f-f504-4b77-96c8-8daa5da6a09d