County water context
Cook County, Illinois
County drought percentages are broader context. Public-water service areas and watersheds cross local boundaries and are resolved separately.
U.S. Drought Monitor ·
Drought conditions in Cook County
This is the latest drought map in this publication, effective 2026-10-13; it is not a live report.
Cook County, Illinois: 0% of county area in D1 or worse; 0% in D0 or worse. D0 means abnormally dry. On 2026-10-06, D1 or worse covered 0%.
County area shares at or above each severity: D2 0% · D3 0% · D4 0%. These cumulative percentages overlap and must not be added. County conditions do not describe every point in a city or a drinking-water restriction.
Illinois drought and water context
Open the drought map and historical playback · U.S. Drought Monitor source
Available records
Available tests and water assessments
These counts bring together results from local place pages, and some may overlap. They tell you how much information is available, not how much water is in good or poor condition.