Harvard Dataverse: “The Historical Settlement Data Compilation for the United States (HISDAC-US) contains historical gridded settlement layers derived from property records compiled in the Zillow Transaction and Assessment Dataset (ZTRAX). HISDAC-US describes the built environment of most of the conterminous United States back to 1810 at fine temporal (5 years) and spatial (250 m) granularity using different settlement measures. These measures currently include the number of built-up property records (BUPR), built-up property locations (BUPL), and the built-up intensity (BUI), i.e., the sum of gross indoor area of all built-up properties in a grid cell in a given year. We also extracted for each grid cell the first built-up year (FBUY), which is the earliest construction year on record. For larger analytical units, such as counties, we derived the built-up area (BUA), or the number of grid cells overlapping with one or more built-up properties in a given year. HISDAC-US can be used as a new means of understanding the speed, spread, and nature of urbanization in the United States from 1810 to 2015.”