Brand Overview

The official emblem associated with the State of Illinois is the Great Seal of Illinois, which represents the authority and identity of the state government. The seal is used on official documents, government publications, and the state flag to authenticate official acts and symbolize the sovereignty of Illinois.

Illinois became the 21st state of the United States on December 3, 1818. Since then, the state has developed several official symbols reflecting its political history and cultural identity. The Illinois seal includes imagery related to the United States, such as the bald eagle and the national shield, showing the strong connection between state authority and national unity.

The seal also appears on the Illinois state flag, which features the seal centered on a white background with the word “Illinois” written beneath it. This design helps distinguish the flag from other U.S. state flags.

Today, the Illinois seal serves as a recognizable visual identity for the state government and represents the historical values and political ideals of Illinois.

Logo History

The State of Illinois seal has evolved through several versions since the state joined the United States.

Early Seal (1819)

After Illinois gained statehood in 1818, the state legislature authorized the creation of an official seal in 1819. This early design closely resembled the Great Seal of the United States, emphasizing the state’s connection to the federal government.

Revised Seal (1839)

In 1839, the seal was recut and slightly modified. While the general imagery remained similar, certain design elements such as the eagle’s orientation and decorative details were changed to create a more distinctive state symbol.

Modern Seal (1868–Present)

The current seal design was introduced in 1868 and officially adopted in 1869. It was proposed by Illinois Secretary of State Sharon Tyndale, who redesigned the emblem during the period following the American Civil War.

One notable feature of this version is the arrangement of the state motto “State Sovereignty, National Union.” Although the motto remained unchanged, the banner was twisted in the design so that “National Union” appears at the top, reflecting the importance of unity after the Civil War.

This version of the seal remains the official symbol of Illinois today.

Design Meaning

The Illinois seal contains several symbolic elements that represent the state’s history and values.

Bald Eagle

At the center of the seal is the bald eagle, the national bird of the United States. The eagle symbolizes:

• Freedom and independence
• National strength
• American identity

Its presence emphasizes Illinois’ role as part of the United States.

Shield

The eagle holds a shield featuring red and white stripes and a blue band. This design represents the original thirteen American colonies and the unity of the nation under federal authority.

Banner and Motto

The eagle carries a ribbon with the state motto:

“State Sovereignty, National Union.”

This phrase highlights the balance between state independence and loyalty to the national government.

Rising Sun and Landscape

Behind the eagle, the seal depicts a sunrise over water and prairie land. This imagery symbolizes:

• Hope and progress
• The natural landscape of Illinois
• A bright future for the state

Boulder and Dates

The eagle stands on a rock engraved with dates that mark important moments in Illinois history, including the year the state joined the Union.

Color Philosophy

The colors used in the Illinois seal are closely related to traditional American symbolism.

Red

Red represents:

• Courage
• Valor
• Determination

These qualities reflect the strength and resilience of the state and its people.

White

White symbolizes:

• Purity
• Integrity
• Honesty in government

It also provides visual clarity and contrast in the design.

Blue

Blue represents:

• Justice
• Vigilance
• Perseverance

These values emphasize the responsibilities of the state government and its commitment to democracy.

Together, these colors mirror the palette of the U.S. flag and reinforce the connection between Illinois and the United States.

FAQs

What is the State of Illinois logo?

The official symbol is the Great Seal of Illinois, which is used on government documents, state publications, and the Illinois state flag.

When was the Illinois state seal created?

The first official seal was created in 1819, shortly after Illinois became a state. The current version was adopted in 1868–1869.

What does the Illinois motto mean?

The motto “State Sovereignty, National Union” expresses the idea that Illinois values both its independence as a state and its loyalty to the United States.

Why is the eagle used in the Illinois seal?

The bald eagle is a national symbol of the United States and represents freedom, strength, and unity.

What year appears on the Illinois seal?

The date August 26, 1818 appears on the seal, marking the signing of the first Illinois Constitution before statehood.