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Illinois State Flag

Prairie State

Capital
Springfield
Statehood
1818
Region
Midwest
Flag Adopted
1915-07-06
Flag of Illinois

White field with Illinois state seal and the word ‘ILLINOIS’ below.

Ratio: 2:3

The white field carries the state seal: an eagle clutching a shield and banner, perched on rock by water. “State Sovereignty, National Union” is its motto, words in tension yet bound together. “Illinois” is written below in plain letters, making the flag both emblem and label.

Flag Symbolism & Meaning

eagle

Represents the United States.

banner

Displays state motto ‘State Sovereignty, National Union.’

sun and water

Symbolize future and prosperity.

Historical Timeline

1818

Illinois admitted as 21st state.

1915

First official flag adopted.

1970

Word ‘ILLINOIS’ added below seal for clarity.

Fascinating Facts

1

Illinois’s motto balances state sovereignty with national unity.

2

Word ‘ILLINOIS’ was added in 1970 after veterans pushed for clearer identification.

For Students & Teachers

Key Learning Points (5-12)

Explain meaning of Illinois’s motto.

Identify national symbols on the seal.

State Information

Population
12,812,508
Area
57,914
Founded
1818-12-03
Region
Midwest