Archive of Census Related Products (ACRP): 1990 Census Block Statistics

The 1990 Census Block Statistics portion of the Archive of Census Related Products (ACRP) contains population and housing data from the U.S. Census Bureau's 1990 Summary Tape File (STF1B). The population data includes total population, age, race, and hispanic origin, while the housing data comprises number of housing units, tenure, room density, mean contract rent, mean value, and mean number of rooms. Additional data includes land area, water area, centroids, Metropolitan Statistical Area (MSA) codes, place codes, and special area codes. This portion of the ACRP is produced by the Columbia University Center for International Earth Science Information Network (CIESIN).人口普查相关产品档案（Archive of Census Related Products, ACRP）中的1990年普查区块统计部分，收录了美国人口普查局1990年汇总磁带文件1B（Summary Tape File 1B, STF1B）中的人口与住房统计数据。其中人口数据涵盖总人口数、年龄结构、种族构成以及西班牙裔血统背景；住房数据则包含住房单元总数、住房保有状态、房间密度、平均合同租金、住房平均估值以及平均房间数。附加数据还包括土地面积、水域面积、区块质心、都会统计区（Metropolitan Statistical Area, MSA）代码、地区代码以及特殊区域代码。该ACRP数据集分支由哥伦比亚大学国际地球科学信息网络中心（Center for International Earth Science Information Network, CIESIN）编制完成。