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Iowa

Iowa is a U.S.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

Iowa is a U.S. state in the Midwestern United States. It became the 29th state on December 28, 1846, and its capital and largest city is Des Moines. Iowa is especially known for its agriculture, including leading U.S. production of corn and soybeans, and for its role in the presidential nominating process through caucuses.

Geography

Iowa is an Upper Midwestern state with broad agricultural plains and river borders. It is bordered by Minnesota, Wisconsin, Illinois, Missouri, Nebraska, and South Dakota. The Mississippi River forms Iowa’s eastern boundary, and the Missouri River and Big Sioux River define parts of its western boundary. Iowa has 99 counties.

History

The area that is now Iowa was part of the Louisiana Purchase in 1803 and became a U.S. territory in 1838. It was admitted to the Union as the 29th state on December 28, 1846.

Economy

Iowa’s economy is strongly associated with agriculture. It is a leading producer of corn, soybeans, and hogs, and agricultural land covers much of the state. Iowa is one of the United States’ most agriculturally productive states.

Government and politics

Iowa is known nationally for its caucuses, which have played an important role in the U.S. presidential nomination process since 1972. The state government is based in Des Moines. Its official motto is “Our Liberties We Prize and Our Rights We Will Maintain.”

Key facts

  • Iowa is the 29th state, admitted to the Union on December 28, 1846.
  • Its capital and largest city is Des Moines.
  • Iowa leads the United States in corn and soybean production and is a major hog producer.
  • The state is known for its presidential caucuses, which have been influential since 1972.
  • Iowa has 99 counties and is nicknamed the Hawkeye State.
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Canadian context

Iowa is relevant to Canadian readers through trade, agriculture, and cross-border geography in the broader North American Midwest, though it does not border Canada directly.

Frequently asked questions

What is Iowa?
Iowa is a U.S. state in the Midwestern United States with its capital in Des Moines.
When did Iowa become a state?
Iowa became the 29th state on December 28, 1846.
What is Iowa known for?
Iowa is known for agriculture, especially corn, soybeans, and hog production, as well as its presidential caucuses.
What is the capital of Iowa?
The capital of Iowa is Des Moines.
What is Iowa’s nickname?
Iowa is commonly called the Hawkeye State.

References

  1. Britannicahttps://www.britannica.com/place/Iowa-state
    Supports: State status, admission date, and general state overview.
  2. Britannicahttps://www.britannica.com/summary/Iowa-state
    Supports: Area, population, borders, river boundaries, history, and economy.
  3. National Geographic Kidshttps://kids.nationalgeographic.com/geography/states/article/iowa
    Supports: Statehood date, borders, and agricultural prominence.
  4. State of Iowahttps://www.iowa.gov/welcome-iowa
    Supports: Statehood date and population.
  5. Britannicahttps://www.britannica.com/facts/Iowa-state
    Supports: Capital, nickname, motto, population, and House seats.