Iowa is bordered on two sides by rivers; the Mississippi separates it on the east from Wisconsin and Illinois, and the Missouri and the Big Sioux separate it on the west from Nebraska and South Dakota. The state is bounded on the north by Minnesota and on the south by Missouri. Iowa is an area of rich, rolling plains, interrupted by many rivers. The terrain is low and gently sloping, except for the hills in the unglaciated area of NE Iowa, the steeply sloping bluffs on the banks of the Mississippi, and the moundlike bluffs on the banks of the Missouri. The rivers of the eastern two thirds of Iowa flow to the Mississippi; those of the west flow to the Missouri. The original woodlands, which included black walnut and hickory, were destroyed by lumbering and land clearing in the 19th cent., and present wooded sections are covered only with second or third growths of timber. Only 0.1% of Iowa, the lowest total in the 50 states, is owned by the federal government. Historically typical of Iowa was the prairie. Covered a little more than a century ago with grass higher than the wheels of the pioneers' prairie schooners, or covered wagons, the prairies gave way to fields of corn and other grains. Wildflowers still brighten the roadsides, but few areas of the original grassland remain, and several prairie preserves have been established. The former habitat of wild turkeys, prairie chickens, and quail, Iowa abounds with migratory geese and ducks and the imported ring-necked pheasant and European partridge, all of which are hunted in the autumn.
Des Moines is the capital and largest city. Other major cities are Cedar Rapids , Davenport , and Sioux City .
Iowa's climate is continental—northwest winds drive the mercury down below 0 (-18) in winter, and in the summer hot air masses bring oppressive heat; there are violent thunderstorms, hail, and occasional droughts. Floods have periodically inflicted great losses of life and property, necessitating control measures. In the devastating midwestern flood of 1993 all 99 counties of Iowa were declared disaster areas. Overall, the average annual rainfall in Iowa is 31 in. (78.7 cm), and, since most of this falls in summer, soil is often washed away. Iowans have had to fight erosion with modern plowing and planting practices, control of water flow, and reforestation. Still, Iowa has some of the most fertile agricultural land (about 70% of the state's area is cropland) in the world.
Area, 56,290 sq mi (145,791 sq km). Pop. (2000) 2,926,324, a 5.4% increase since the 1990 census. Capital and largest city, Des Moines. Statehood, Dec. 28, 1846 (29th state). Highest pt., 1,670 ft (509 m), Osceola co.; lowest pt., Mississippi River, 480 ft (146 m). Nickname, Hawkeye State. Motto, Our Liberties We Prize and Our Rights We Will Maintain. State bird, Eastern goldfinch. State flower, wild rose. State tree, oak. Abbr., IA
The deep, porous soil yields corn and other grains in tremendous quantities, and the corn-fed hogs and cattle are nationally known. In 1997, Iowa led the nation in the production of corn, soybeans, hogs, and pigs, and ranked in the top 10 in the raising of cattle. Other major crops are hay and oats. Iowa has in recent years taken in the second highest farm income of any state.
Agriculture also benefits the state's chief industry, food processing, and in Sioux City and Cedar Rapids many factories process farm products. Nonelectrical machinery, farm machinery, tires, appliances, electronic equipment, and chemicals are among the other manufactures. Cement is the most important mineral product; others are stone, sand, gravel, and gypsum. Mineral production is small, however. Communications, finance, and insurance industries are especially important in Des Moines.
Iowa's constitution was adopted in 1857. The governor is elected for a term of four years. The general assembly, or legislature, has a senate with 50 members and a house of representatives with 100 members. Iowa is represented in the U.S. Congress by two senators and five representatives. The state has seven electoral votes. Terry Branstad, a Republican, served as governor from 1983 through 1998, when Democrat Tom Vilsack was elected. Vilsack was reelected in 2002
Among the educational institutions in Iowa are Iowa State Univ. of Science and Technology, at Ames; the Univ. of Iowa, at Iowa City; Grinnell College, at Grinnell; Cornell College, at Mount Vernon; Drake Univ., at Des Moines; Univ. of Northern Iowa, at Cedar Falls; and the Univ. of Dubuque, Loras College, and Clarke College, at Dubuque.
Among Iowa's colorful native sons were Buffalo Bill Cody, labor leader John L. Lewis , and baseball player-evangelist Billy Sunday . Other public figures associated with the state are James Wilson, U.S. secretary of agriculture for 16 years (1897-1913), and the noted members of the Wallace family—Henry Wallace, Henry Cantwell Wallace, and Henry Agard Wallace. Herbert C. Hoover and Harry L. Hopkins were born in Iowa. Herbert Hoover National Historic Site, which contains Hoover's birthplace, childhood home, and grave, and the Herbert Hoover Presidential Library are at Wes
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