20201204 13444100 1.0 TRUE County Subdivisions This data set provides eight feature classes. The base feature class is called esri_cs and isn't generalized. The weighted centroids feature class is called esri_cs_cent. The centroids are weighted by the U.S. Block Centroids population distribution. Use the weighted centroids in report aggregation and spatial overlay operations. The esri_cs and esri_cs_cent feature classes contain all the attributes. There are six generalized boundaries feature classes and called: esri_cs_gen2, esri_cs_gen3, esri_cs_gen4, esri_cs_gen5, esri_cs_gen6 and esri_cs_gen7. Use the generalized boundaries when creating study areas. Esri; U.S. Census Bureau