SAU - Significant Administrative Units Dataset

The Significant Administrative Units (SAU) Dataset is a geo-coded, time-variant dataset of administrative units around the world between 1988 and 2018. SAU version 1.0 provides geo-coded polygons for all first-order administrative units that existed in 180 countries at any point between 1988 and 2018. In addition, for the same sample, it also provides geo-coded polygons for lower-level administrative units that are constitutionally recognized as autonomous. In total, it contains 6152 geocoded polygons, each of which represents a specific unit in a time period between 1988 and 2018.