Health Data Sources

Source  Description / Use  Limitations Format Geographic Level Year Last Updated
Washington Tracking Network (WTN) Environmental & Health Topics - Data Dashboards | Washington State Department of Health  Interactive dashboards offering environmental, injury, chronic disease, opioid, and behavioral health data. Supports geographic exploration by county, ACH, and census tract, enabling spatial trend analysis. Some topics may require data literacy; maps rely on accurate population denominators. Dashboard & CSV data download County, ACH, Census tract  Continuously maintained; different dates depending on data topic.
Environmental Health Disparities Map
Information by Location | Washington Tracking Network (WTN) 
 A mapping tool that ranks communities by environmental health burdens (PM2.5, social vulnerability) at the census tract level, using rank scales. Good for identifying environmental justice hotspots and spatial inequities.  Ranks are relative, low populated tracts may be suppressed, updated only every three years. Interactive map & data export Census tract  Latest version based on 2020 census data, updated every 3 years.
Unintentional Drug Overdose Data (SUDORS) Dashboard WA DOH
Unintentional Drug Overdose Data (SUDORS) | Washington State Department of Health 
 Part of Washington’s DOH offering, this dashboard shows circumstances of overdose deaths (drug types, death context) where participating counties are included.  Covers only participating counties (~88% of overdose deaths); semi-annual updates. Dashboard & CSV data download County (participating counties, doesn’t include Grant County) ED visits nearly real time, death data for 2023, data updated monthly or quarterly
CDC Environmental Public Health Tracking Network Data Explorer
ephtracking.cdc.gov 
 A national-level tool to explore standardized environmental health data (air quality, asthma, heat, water); includes maps, trends, and comparisons across regions.  Data are aggregated nationally; data may be available at census or regional level dependent on type. Some data are based on projections or modeling.  Web tool & interactive explorer  Census, regional, State and national  Continuously updated based on data source 
OSPI Data Portal & Report Card
Home - Washington State Report Card 
 Provides student demographics, free/reduced lunch eligibility, immunizations, homelessness, and educator data, valuable for contextualizing school-age population needs.  Focused on education sector; does not include direct health behavior/outcome data.  Dashboard, PDF report, & CSV data download  School, District, County  2024–25 school year
Healthy Youth Survey
Data Dashboard - Healthy Youth Survey 
 Self-reported data from 6th–12th graders covering health behaviors, mental health, substance use, food security, and demographics in dashboards, custom reports, and CSVs.  Self-report bias (recall, social desirability, non-response); methodology changed in 2021 so recent data should not be included in trends. PDF report, dashboard, & CSV data download. County, Region, State  2023 (limited)