Observations

Apr 2026: 309.364

Updated: May 12, 2026 8:02 AM CDT

Units:

Index 1982-1984=100,

Not Seasonally Adjusted

Frequency:

Monthly

Notes

Title	Release Dates

Consumer Price Index for All Urban Consumers: All items in Chicago-Gary-Kenosha, IL-IN-WI (CMSA)	2011-10-19	2018-02-13
Consumer Price Index for All Urban Consumers: All items in Chicago-Naperville-Elgin, IL-IN-WI (CBSA)	2018-02-14	2019-09-11
Consumer Price Index for All Urban Consumers: All Items in Chicago-Naperville-Elgin, IL-IN-WI (CBSA)	2019-09-12	2026-05-12

Source

U.S. Bureau of Labor Statistics	2011-10-19	2026-05-12

Release

Consumer Price Index	2011-10-19	2026-05-12

Units

Index 1982-1984=100	2011-10-19	2026-05-12

Frequency

Monthly	2011-10-19	2026-05-12

Seasonal Adjustment

Not Seasonally Adjusted	2011-10-19	2026-05-12

Release Tables

Consumer Price Index