This data set depicts the county boundaries of the State of Washington. This data set was created by the Washington State Department of Natural Resources to meet that agency's need for land surveying, land title, and land management GIS data. It is part of the Washington State Cadastral Framework Data set. The Washington Cadastral Framework data represents an integrated set of geographic-referencing data covering the State of Washington. It is derived from Land Surveys, DNR Orthophotos, USGS 7-1/2 minute quadrangles, DNR Ownership Tract Book, and various public organizations. The initial data population includes Public Land Survey System information, state boundary, county boundaries, and Department of Natural Resource parcel information.If you have any questions about this data, please contact Thomas A. Blake, GIS Data Products Supervisor - blaket@wsdot.wa.gov - (360) 570-2363. If you're having trouble viewing these services, please contact our Online Map Support.Attribute Definitions:Jurisdiction Name – Provides the name of the county.County Number – Provides the counties number.County FIPS Code - The unique code that identifies the counties of Washington State.