Incorporated areas of King; Snohomish; and Pierce Counties; plus Unincorporated Areas

For more information about this layer please see the GIS Data Catalog. Expanded layer built on CITY_3CO_AREA., CITY_3CO_UNINC_AREA is a compilation of city jurisdictional information from three counties: King, Pierce and Snohomish, plus the unincorporated areas in each of the three counties. Uses the best available information from each of the 3 counties to produce the composite product for the jurisdictional areas and assumes the areas outside of the jurisdictions to be unincorporated. Updated whenever changes are made to any one of the source data sets. For King County this will be whenever CITY_AREA (parent is CITY_ANNEX) is updated to Spatial Data Warehouse. Pierce and Snohomish updates are shared with King County on quarterly to semi-annual basis. Updates are made so that the King County portion of this composite is synchronous with the information in the master King County jurisdiction layer.如需了解该图层的更多信息，请查阅地理信息系统（GIS）数据目录。 本扩展图层基于CITY_3CO_AREA构建，CITY_3CO_UNINC_AREA整合了金县（King）、皮尔斯县（Pierce）和斯诺霍米什县（Snohomish）三个县的城市管辖区域信息，以及这三个县各自的非建制区域数据。 该数据集采用三个县的最优可用数据源，生成管辖区域的综合图层，并默认管辖范围之外的区域为非建制区域。 当任一源数据集发生更新时，本图层将同步更新。 针对金县而言，当CITY_AREA（其父图层为CITY_ANNEX）更新至空间数据仓库（Spatial Data Warehouse）时，本图层即完成更新。 皮尔斯县与斯诺霍米什县的更新数据将按每季度至每半年的频率同步至金县。 本次更新旨在确保该综合图层中金县部分的数据，与金县主管辖图层的信息保持同步。