Overview

• This feature layer visualizes the 2020 overall SVI for King County tracts
• 16 social factors grouped into four major themes
• Index value calculated for each county for the 16 social factors, four major themes, and the overall rank

What is CDC Social Vulnerability Index?

ATSDR’s Geospatial Research, Analysis & Services Program (GRASP) created the Social Vulnerability Index (SVI) to help emergency response planners and public health officials identify and map the communities that will most likely need support before, during, and after a hazardous event.

SVI uses U.S. Census data to determine the social vulnerability of every county and tract. CDC SVI ranks each tract on 16 social factors, including poverty, lack of vehicle access, and crowded housing, and groups them into four related themes:

• Theme 1 - Socioeconomic Status
• Theme 2 - Household Characteristics
• Theme 3 - Racial & Ethnic Minority Status
• Theme 4 - Housing Type & Transportation 

Variables

For a detailed description of variable uses, please refer to the full SVI 2020 documentation.

Data Source: CDC/ATSDR SVI Data and Documentation Download