Ill.

Geography & Places abbreviation · US State Traditional

Ill. stands for Illinois, a US state traditional abbreviation.

Illinois appears as Ill. in AP datelines (PEORIA, Ill.), party labels (D-Ill.), the GPO manual and The Bluebook, which also uses Ill. for the Illinois Reports and Ill. Comp. Stat. for the state's compiled statutes, often shortened to ILCS.

Example: SPRINGFIELD, Ill. — Lawmakers worked past midnight to pass the state budget.

Usage notes

Because Ill. looks like the word ill, headline writers often spell the state out. The postal code IL has been used on mail since 1963. Chicago stands alone in AP datelines without Ill., as do about 30 other major US cities.

Related abbreviations

More US state traditional abbreviations

• Cal. – California
• Calif. – California
• Colo. – Colorado
• Conn. – Connecticut
• Del. – Delaware
• Fla. – Florida
• Ind. – Indiana
• Kan. – Kansas
• Kans. – Kansas
• Mass. – Massachusetts
• Mich. – Michigan
• Minn. – Minnesota

See all 36 US state traditional abbreviations →

Edited by the AbbreviationList.com team. Spotted an error or a missing meaning? Contact us.