Census Block Group ACS Layers (2020 Census) for Kentucky

The TIGER/Line Files are geodatabases and related database files (.csv) that are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). Census Block Groups are statistical areas bounded on all sides by visible features, such as streets, roads, streams, and railroad tracks, and/or by nonvisible boundaries such as city, town, township, and county limits, and short line-of-sight extensions of streets and roads. A Census Block Group is a geographical unit used by the United States Census Bureau which is between the Census Tract and the Census Block.TIGER/线文件（TIGER/Line Files）是地理数据库与相关.csv格式数据库文件的集合，其内容为从美国人口普查局的主地址文件/拓扑集成地理编码与参考数据库（MAF/TIGER Database，缩写MTDB）中提取的精选地理与制图信息。人口普查街区组（Census Block Groups）是一类统计区域，其边界由街道、道路、溪流、铁路轨道等可见地物，以及城市、城镇、镇区、县界这类非可见边界，亦或是街道与道路的短视距延伸段共同划定。人口普查街区组是美国人口普查局使用的地理单元，其层级介于普查分区（Census Tract）与普查地块（Census Block）之间。