Census Tracts (2020)

This dataset includes 2020 census tracts as defined by the U.S. Census Bureau and made available through their TIGER/Line files. Census tracts are small, relatively permanent statistical subdivisions of a county. Their primary purpose is to provide a stable set of geographic units for the presentation of decennial census data. They are reviewed and updated prior to each decennial census. Census tracts generally have a population size of 1,200 to 8,000 people with an optimum size of 4,000 people. Census tract boundaries generally follow visible and identifiable features but might follow legal boundaries or incorporated place boundaries. For more information about census geographies, see https://www2.census.gov/geo/pdfs/maps-data/data/tiger/tgrshp2020/TGRSHP2020_TechDoc_Ch4.pdf . This file is for reference use only. NCTCOG and its members are not responsible for errors or inaccuracies in the file.本数据集包含美国人口普查局定义的2020年普查区（Census tract），并通过其TIGER/Line文件（TIGER/Line files）对外发布。普查区是县级行政区下辖的小型、相对稳定的统计分区，其核心用途是提供一套稳定的地理单元，用于呈现十年一次人口普查的相关数据。每一轮十年一次人口普查开展前，相关方都会对普查区进行审核与更新。普查区的人口规模通常介于1200至8000人，最优规模为4000人。普查区的边界一般遵循可见且可识别的地物特征，但也可能采用法定边界或已建制行政区的边界。如需了解更多普查地理相关信息，请参阅：https://www2.census.gov/geo/pdfs/maps-data/data/tiger/tgrshp2020/TGRSHP2020_TechDoc_Ch4.pdf。本文件仅作参考使用，NCTCOG及其成员不对本文件中的错误或不准确之处承担责任。