Seattle Public Utilities


The City of Seattle’s GIS data is an important resource for engineers, land planners, architects, utility designers, and others who consult or provide technical services to city departments. The GIS group fields hundreds of requests from city staff and the public who are looking for geographic maps and data in a variety of digital formats to support their work. We offer the following services:

Homeowner Research Map

Use this application to better understand utility infrastructure serving your property. Use this self-service tool to create a PDF map to download and print. Create a map of your property.

Water and Sewer Research Map

Use the DSO's Water and Sewer Map to research existing Seattle water, drainage, and sewer infrastructure for new property purchases or development.


The City of Seattle offers GIS data services available for use in addition to data download. Browse Seattle GIS data


GIS utility infrastructure data within Seattle is provided on a project-specific basis and licensed for specific use. Request data sets

Express mapping service

Use this service to request an 11-inch by 17-inch pre-designed, color map tailored to meet your scale and content requirements. Your map can be picked up in person or emailed to you as a PDF. Hours and contact information