Wisconsin Statehood: May 29, 1848, and Its Flag

Wisconsin became the 30th state on May 29, 1848. Its route to admission included two constitutional conventions and a rejected first draft. The year 1848 on Wisconsin's modern flag commemorates statehood; it is not the year that flag design was adopted.

Wisconsin state flag with the coat of arms, Wisconsin lettering and the year 1848 on blue.
FORTISVEX catalog illustration of the modern Wisconsin state flag. The flag design is separate from the statehood date.

When is Wisconsin's state birthday?

Wisconsin's statehood anniversary is May 29. The Library of Congress identifies May 29, 1848, as the date the thirtieth state entered the Union. Federal admission followed approval of the state constitution earlier that spring.

Why did Wisconsin need two constitutional conventions?

Delegates assembled at Madison in 1846 to write a constitution, but debates over voting, banking and property rights made the process contentious. Voters rejected the first proposal in April 1847. A second convention followed, and voters approved its constitution in March 1848.

The Wisconsin Historical Society's statehood account explains how the second version dropped provisions dealing with married women's property rights and Black male suffrage. The result secured admission but left important civil-rights questions unresolved. Statehood was one stage in the development of Wisconsin's government, not the end of that history.

What does 1848 on the Wisconsin flag mean?

It is Wisconsin's statehood year. The date sits below the coat of arms, with Wisconsin above it on the blue field. Those additions make the flag easier to identify and connect it directly to the state's birthday.

When was Wisconsin's flag adopted?

The Wisconsin Blue Book's flag history records several milestones:

  • 1863: The legislature provided an official design after Civil War regiments requested a state flag.
  • 1913: Flag specifications were written into Wisconsin's statutes.
  • Chapter 286, Laws of 1979: The state name and 1848 were added to the design.

The revised specifications required official flags manufactured on or after May 1, 1981, to use the updated design. Older flags could continue in use, as recorded in the published Wisconsin statute. This explains why 1863, 1913, 1979 and 1981 can all appear in accounts of the flag.

What does the coat of arms show?

A sailor and a miner flank a shield whose symbols refer to agriculture, mining, manufacturing and navigation. A badger appears above it, beneath the motto Forward. The Blue Book explains these features as symbols of the state's work, resources and identity.

For a birthday display, label the modern flag separately from the May 29, 1848, admission. The printed date honors that event; it does not make the flag an 1848 artifact.

Explore Wisconsin flags and other state birthdays

For a statehood display, compare the sizes, materials and mounting options in our Wisconsin state flag collection. For more anniversary dates, visit the U.S. state birthday calendar.

Sources and further reading

Oct 24th 2026 Sydney S.

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