2020 Census State Redistricting Data - Voting Age Population and Housing Status for Tracts

For more information about this layer please see the GIS Data Catalog. US Census 2020 File01 (Tables P3, P4, & H1), (P3) Race for the Population 18 Years and Over, (P4) Hispanic or Latino, and Not Hispanic or Latino by Race for the Population 18 Years and Over, and (H1) Housing Units Occupancy Status. A unique logical record number (LOGRECNO in the geographic header) is assigned to all files for a specific geographic entity. This field is the key that links records across all four files. Besides the logical record number, other identifying fields also are carried over from the geographic header file to the table files. These are file identification (FILEID), state/U.S. abbreviation (STUSAB), characteristic iteration (CHARITER), and characteristic iteration file sequence number (CIFSN). The geographic header is standard across all electronic data products from the 2020 Census. Note that some fields in the Redistricting products are not filled. For example, the CHARITER field is used in other 2020 Census products; in the 2020 Census State Redistricting Data (Public Law 94-171) Summary File, it is always coded as 000, GEOIDs are related to Tracts. For tables P3, P4, & H1 details refer to the online census documentation: 2020 Census State Redistricting Data (Public Law 94-171) Summary File如需获取该图层的详细信息，请参阅地理信息系统（GIS）数据目录。本数据集对应美国2020年人口普查File01，包含表P3、P4及H1：其中(P3)为18岁及以上人口种族构成表，(P4)为18岁及以上人口按种族划分的西班牙裔/拉丁裔与非西班牙裔/拉丁裔构成表，(H1)为住房单元居住状况表。所有针对特定地理实体的文件均会分配唯一逻辑记录编号（地理头文件中记为LOGRECNO），该字段是关联四个文件所有记录的核心关联字段。除逻辑记录编号外，地理头文件中的其余标识字段也会同步至各数据表文件，包括文件标识（FILEID）、州/美国缩写（STUSAB）、特征迭代编号（CHARITER）以及特征迭代文件序列号（CIFSN）。该地理头文件格式为2020年人口普查所有电子数据产品的统一标准。需注意，选区重划产品中的部分字段未被填充。例如，CHARITER字段在其他2020年人口普查产品中可正常使用；但在《2020年人口普查州选区重划数据（公法94-171）汇总文件》中，该字段始终被编码为000，地理标识符（GEOIDs）与普查区域（Tracts）相关联。有关表P3、P4及H1的详细说明，请参阅官方在线普查文档：《2020年人口普查州选区重划数据（公法94-171）汇总文件》。