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Washington Tracking Network (WTN)

The Washington Tracking Network (WTN) is a public website where users can find data and information about environmental health hazards, population characteristics, and health outcomes.

Users can view information on issues such as health disparities and socio-economic determinants of health, as well as detailed data on individual topics such as cancer, drinking water contaminants, or birth outcomes.

WTN lets you explore information and data on health conditions, environmental exposures, and community characteristics where you live, work, and play.

How to Use WTN

Information by Location (IBL)

Explore information about your community and surrounding areas; topics include health disparities, lead exposure risk, and social vulnerabilities to hazards

Search WTN Data

Sort, export, chart, and map data for environmental and public health measures

Learn About WTN Topics

Select a topic from the menu on the left of this page to learn more about the topics available and how they affect you and your family


What's New to WTN               

  • Radon Data (January 2017)- You can now view a new year of radon data (October 2015 - September 2016).
  • Toxic Cleanup Sites (January 2017) – We have now posted toxic clean-up sites using Washington State Department of Ecology data. You can view these sites on the Information by Location (IBL) map, under the Map Features tab.
  • Natural Hazards (January 2017) – We now have a natural hazards map, which displays such things as mudflow and lava flow areas, tsunamis-effected areas and earthquake faults. To view these you can go to the Natural Hazards map in the Climate and Health section.
  • Rural, Tribal and Mental Health Clinics (January 2017) - You can now view rural, tribal and mental health clinic locations and names as a selectable feature layer on several measures. Check them out in the various measures under the Vulnerable Populations sub-topic, which is located in the Community Section, under the Population Characteristics topic.

Contact Us

For information or questions related to the Washington Tracking Network, email

Would you like to receive updates?

Receive updates and information about WTN by joining our WTN Listserv.

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National Environmental Public Health Tracking Program

This website is supported by Cooperative Agreement Number U38EH000955 from the Centers for Disease Control and Prevention (CDC), National Environmental Public Health Tacking. Its contents are solely the responsibility of the Department of Health and do not necessarily represent the official views of the CDC.