The four-letter states in the United States are Iowa, Utah and Ohio. Ohio has a total area of 44,824 square miles, and Iowa has a total area of 56,272 square miles. Utah is the largest of the four-letter states, with a total area of 84,899 square miles.
Ohio is located in the Midwest. It is the 34th largest state and is the seventh most populated state. The capital of Ohio is Columbus. Iowa is also in the Midwest and is the only state to have its western and eastern borders formed by rivers. Utah is the 13th largest state and is bordered by Colorado, Wyoming, Idaho, Arizona and Nevada.