Environmental justice burden
Where do environmental burdens and vulnerability stack up across Chicago? This map shows EPA EJScreen indicators for each community area — the EJ demographic index plus air quality, traffic, lead, and proximity to hazardous sites. Search your address or click any community area, and switch indicators with the tabs.
Full ranking — all 77 neighborhoods
How to read this map
EPA EJScreen scores every census block group on environmental and demographic indicators. Each value here is a national percentile (0–100): a score of 90 means the area faces a heavier burden than 90% of the country. We show each community area as the area-weighted average of the block groups it covers, so a warmer color means a higher burden. The drawer reports how many block groups were averaged.
The EJ demographic index combines low-income and people-of-color shares — EPA’s measure of who is most affected. The environmental tabs (PM2.5, ozone, diesel, lead, traffic, and proximity to Superfund, chemical-accident, hazardous-waste, wastewater, and underground-storage sites) are the burdens themselves. Chicago sits high on the national scale across most of them — the story is where the heaviest burdens concentrate, from the industrial belts of the West and South Sides to the Calumet corridor on the Southeast Side.
Source: EPA EJScreen block-group indicators (v2.32, 2024 release), intersected with Census TIGER/Line block-group boundaries for Cook County. Air-toxics cancer and respiratory indices are omitted where EPA suppresses their national percentile. See methodology for details.