City

The "City" layer represents the County's understanding of land currently annexed by municipalities. The data is developed and maintained by Jefferson County's Planning and Zoning (P&Z) Department and reflects the annexations or de-annexations legally recorded by the various municipalities within Jefferson County.“城市”图层（"City" layer）代表杰斐逊县对当前已被市政当局兼并的土地的官方界定。本数据集由杰斐逊县规划与分区（Planning and Zoning，简称P&Z）部门开发并维护，如实反映了杰斐逊县境内各市政当局依法登记的土地兼并与解除兼并事项。