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Given downward trends in fertility and mortality, population dynamics &#8211;and thus the<br />estimation of spatially-explicit population dynamics and gridded population and derivative<br />products&#8211; are increasingly sensitive to mobility processes and their changes in spatiality. In this<br />paper, we present a procedure to produce origin-destination intermunicipal/intercounty and<br />interstate migration matrices, briefly discussing their use and application in gridded population<br />products. To illustrate our approach, we produce total and sex-specific matrices with information<br />from the 2000 and 2010 Mexican Census long-form 10% surveys. We share the code required to<br />reproduce the extraction of these and for potentially at least another 122 country-periods based on<br />harmonized publicly-available data from IPUMS International, which allow for the addition of<br />ancillary social and economic data and individual and household levels, or IPUMS Terra, which<br />further allow for GIS-based mapping, visualization, and manipulation and for the merging of<br />important contextual, e.g., environmental, data. Besides discussing the likely limitations of these<br />measures, using official projections from the Mexican government, we illustrate how<br />migration/mobility data improve the estimation of spatial/gridded population dynamics. We wrap<br />up with a call for the collection of more adequate, spatially-explicit data on residential mobility and<br />migration globally.