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Geocomputation is increasingly integrated with spatial data infrastructure to develop and deliver massive datasets and attendant analysis and visualization capacity to a wide range of users. IPUMS Terra is spatial data infrastructure that develops and uses geocomputational approaches to provide one of the largest collections of integrated population and environment data in the world. In this paper, we describe new efforts to fundamentally change the landscape of population-environment data by integrating, preserving, and disseminating vast amounts of aggregate census and agricultural census data. We are developing data manipulation tools and workflow management approaches to transform and standardize data as well as capture metadata. These developments in turn facilitate the processing, documenting, and intake of tens of thousands of data tables into IPUMS Terra, which then are shared with the scientific community and the broader public to advance understanding of the population and agricultural systems that are central to many complex human-environment systems.