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The postal abbreviation for Illinois is IL, and the standard abbreviation is Ill. Learn more about the history and usage of state abbreviations in the US.
- Maine
Capital City: Agusta . Abbreviation: ME. Population (2019):...
- Massachusetts
Capital City: Boston . Abbreviation: MA. Population (2019):...
- Maine
May 7, 2021 · Learn the origin and current postal codes of the US states, including Illinois (IL). Find out how the codes are used for mailing, data processing, and introducing oneself.
Jul 6, 2022 · Learn how to write Illinois as a state abbreviation in two different formats: USPS (IL) and traditional (Ill.). Find out the history, rules and tips for using state abbreviations correctly.
List of U.S. state and territory abbreviations. Several sets of codes and abbreviations are used to represent the political divisions of the United States for postal addresses, data processing, general abbreviations, and other purposes.
The 50 State Abbreviations. The list below is all 50 States and their postal and standard abbreviations in alphabetical order. Each state has its own unique shortened name codes called state abbreviations used in written documents and mailing addresses.
Learn the official 2-letter abbreviations for the 50 US states, including Illinois (IL). The abbreviations are used for mailing addresses and are always capitalized and without periods.
With that in mind, here's the complete A-Z list of the 50 U.S. states' abbreviations and letter codes, so you can be sure they will get to the right place, and a state abbreviation quiz, so you can test your knowledge!
