Open Data 

Data.wa.gov is the state's open data portal that provides a valuable resource that can be used by citizens and businesses of the state to fuel entrepreneurship, innovation, and scientific discovery. Data is "open" when it is offered free of charge, without restrictive licenses, with good descriptive "metadata" so you can understand it, and is searchable and downloadable in a common, structured format readily usable by computer code. 

Learn more about the Open Data program.

Geospatial Portals 

Geo.wa.gov provides public access to a variety of geospatial data. This portal is designed to empower agencies, businesses, and citizens by making high-quality geographic information readily available. 

Washington Master Addressing Services (WAMAS) improves accuracy and reduce errors for verifying and validating address data by using a centralized consistent data source. 

Learn more about the Geospatial program.