The population of the State of Washington is growing, corresponding with increased addresses. Compounding address-related errors can have significant and costly effects on government operations.
Follow the links below to access GIS data offered by City, County, Regional, and National sources.
City & County
Link to geo.wa.gov - Local GIS Data
This is the landing page for meeting materials related to the WA Master Addressing Steering Committee.
February 13, 2020 2:15-3:30; 1500 Jefferson St SE, Room 2332
Previous Meeting Agendas & Notes:
This is the landing page for all meeting material related to the GeoPortal subcommittee.
Here you will find information that goes into depth about the addressing service API's that have been created for use by state and local government.
Location Based Services (description)
You will find here information that will help to explain how to use these addressing services. The attached documents and training materials go into further detail about these services.
Make sure to take a look at the Technical Documentation & Information Flyers sub-page as well!
*Geospatial Open Data Guidelines
*Geospatial Open Data Technical Workgroup Notes Aug Sept 2017
Provided here are more technical details about the GeoPortals infrastructure, operations and governance.
Provided here are the documents you'll need to submit to gain access to the WAMAS application programming interfaces (API's). These services are open to any and all governmental entities.
You will need to complete all three (3) documents in order to access these authoritative services.
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