Census Tracts 1990
收藏资源简介：
The US Census Bureau's year 1990 census tracts. 1995 and 1997 attributes are included. Tract boundaries are released from the Census Bureau every 10 years. Accessed from IPUMS National Historical Geographic Information System: Version 18.0. Date of last data update: 2024-04-24 This is official RLIS data. Contact Person: Joe Gordon joe.gordon@oregonmetro.gov Emailing the contact person listed above is the fastest way to get a response, but if you prefer to call, you can contact the Data Resource Center at 503-797-1742 and someone will return your call as soon as they are able. RLIS Metadata Viewer: https://gis.oregonmetro.gov/rlis-metadata/#/details/298 Terms of Use: https://rlisdiscovery.oregonmetro.gov/pages/open-database-license
本数据集为美国人口普查局（US Census Bureau）1990年普查区块数据集，包含1995年与1997年的属性数据。普查区块边界每十年由美国人口普查局公开发布。本数据集获取自IPUMS全国历史地理信息系统（IPUMS National Historical Geographic Information System）18.0版本。 最后一次数据更新日期：2024年4月24日。 本数据为官方RLIS数据。 联系人：乔·戈登（Joe Gordon），电子邮箱：joe.gordon@oregonmetro.gov。通过上述联系人邮箱获取反馈最为快捷；若您偏好电话咨询，可拨打数据资源中心电话503-797-1742，工作人员将尽快回电。 RLIS元数据查看器：https://gis.oregonmetro.gov/rlis-metadata/#/details/298 使用条款：https://rlisdiscovery.oregonmetro.gov/pages/open-database-license
