Current boundaries for King County incorporated places. This is extracted from CITY_ANNEX_AREA.

King County GIS Open Data2026-01-13 更新00

Incorporated Areas of King County for Elections

For more information about this layer please see the GIS Data Catalog. Incorporated cities and unincorporated areas of King County maintained for election purposes

King County GIS Open Data2026-06-11 更新00

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 counti

King County Snohomish County Planning Department2026-01-15 更新10