Observations

H2 2025: 39.487

Updated: Jan 13, 2026 8:05 AM CST

Units:

Index Dec 2009=100,

Not Seasonally Adjusted

Frequency:

Semiannual

Notes

Title	Release Dates

Consumer Price Index for All Urban Consumers: Education and communication commodities in Chicago-Gary-Kenosha, IL-IN-WI (CMSA)	2011-10-19	2018-02-13
Consumer Price Index for All Urban Consumers: Education and communication commodities in Chicago-Naperville-Elgin, IL-IN-WI (CBSA)	2018-02-14	2019-09-11
Consumer Price Index for All Urban Consumers: Education and Communication Commodities in Chicago-Naperville-Elgin, IL-IN-WI (CBSA)	2019-09-12	2026-01-13

Source

U.S. Bureau of Labor Statistics	2011-10-19	2026-01-13

Release

Consumer Price Index	2011-10-19	2026-01-13

Units

Index Dec 2009=100	2011-10-19	2026-01-13

Frequency

Semiannual	2011-10-19	2026-01-13

Seasonal Adjustment

Not Seasonally Adjusted	2011-10-19	2026-01-13

Release Tables

Consumer Price Index