There are 3 states with cities named Decatur in the USA. They are Georgia, Alabama and Illinois. Thanks for choosing AnswerParty.
Geography of Alabama
The United States of America (USA), commonly referred to as the United States (US), America, or simply the States, is a federal republic consisting of 50 states, 16 territories, a federal district, and various overseas extraterritorial jurisdictions. The 48 contiguous states and the federal district of Washington, D.C., are in central North America between Canada and Mexico. The state of Alaska is the northwestern part of North America and the state of Hawaii is an archipelago in the mid-Pacific. The country also has five populated and nine unpopulated territories in the Pacific and the Caribbean. At 3.79 million square miles (9.83 million km2) in total and with around 316 million people, the United States is the fourth-largest country by total area and third largest by population. It is one of the world's most ethnically diverse and multicultural nations, the product of large-scale immigration from many countries. The geography and climate of the United States is also extremely diverse, and it is home to a wide variety of wildlife.
Paleo-indians migrated from Asia to what is now the US mainland around 15,000 years ago, with European colonization beginning in the 16th century. The United States emerged from 13 British colonies located along the Atlantic seaboard. Disputes between Great Britain and these colonies led to the American Revolution. On July 4, 1776, delegates from the 13 colonies unanimously issued the Declaration of Independence. The ensuing war ended in 1783 with the recognition of independence of the United States from the Kingdom of Great Britain, and was the first successful war of independence against a European colonial empire. The current Constitution was adopted on September 17, 1787. The first 10 amendments, collectively named the Bill of Rights, were ratified in 1791 and guarantee many fundamental civil rights and freedoms.
Geography of the United States
This article will go through a wide range of topics of the geography of the state of Alabama. It is 30th in size and borders four U.S. states: Mississippi, Tennessee, Georgia, and Florida. It also borders the Gulf of Mexico.
Extending entirely across the state of Alabama for about 20 miles (32 km) northern boundary, and in the middle stretching 60 miles (97 km) farther south, is the Cumberland Plateau, or Tennessee Valley region, broken into broad tablelands by the dissection of rivers. In the northern part of this plateau, west of Jackson county, there are about 1,000 square miles (2,600 km2) of level highlands from 700 to 800 feet (210 to 240 m) above sea level. South of these highlands, occupying a narrow strip on each side of the Tennessee River, is a country of gentle rolling lowlands varying in elevation from 500 to 800 feet (150 to 240 m). To the northeast of these highlands and lowlands is a rugged section with steep mountain-sides, deep narrow coves and valleys, and flat mountain-tops. Its elevations range from 400 to 1,800 feet (120 to 550 m). In the remainder of this region, the southern portion, the most prominent feature is Little Mountain, extending about 80 miles (129 km) from east to west between two valleys, and rising precipitously on the north side 500 feet (150 m) above them or 1,000 feet (300 m) above the sea.
Huntsville–Decatur Combined Statistical Area
The United States is a country in the Northern Hemisphere, Western Hemisphere, and the Eastern Hemisphere. It consists of forty-eight contiguous states in North America, Alaska, a peninsula which forms the northwestern most part of North America, and Hawaii, an archipelago in the Pacific Ocean. There are several United States territories in the Pacific and Caribbean. The term "United States", when used in the geographical sense, means the continental United States, Alaska, Hawaii, Puerto Rico, Guam, and the Virgin Islands of the United States. The country shares land borders with Canada and Mexico and maritime (water) borders with Russia, Cuba, and the Bahamas in addition to Canada and Mexico.
Decatur Metropolitan Area
The Huntsville-Decatur-Albertville, AL Combined Statistical Area is the most populated sub-region of North Alabama, and is the second fastest growing region in the State of Alabama, with 679,743 living within the CSA. It is also currently the 70th largest CSA in the country.
The CSA is situated along the Tennessee River, and is made up of two separate metropolitan areas (Decatur and Huntsville) that are usually referred to as one. The area also consists one of micropolitan area Albertville. The Decatur MSA lies south of the Tennessee River, and the Huntsville MSA lies north, the Albertville micropolitan area lies southeast of the Tennessee River.
The Decatur Metropolitan Area is a moderately urban region of North-Central Alabama. The 2008 estimate population is 150,125, one third of which resides within the boundaries of its core city, Decatur, Alabama.]citation needed[
The metro area is the combined area of the City of Decatur and the surrounding areas in suburban, rural, and more developed parts of Morgan and Lawrence Counties. It is also considered to be part of the North, Northwest, and North-Central regions of Alabama.
Decatur // is the largest city and the county seat of Macon County in the U.S. state of Illinois. The city, sometimes called "the Soybean Capital of the World", was founded in 1829 and is located along the Sangamon River and Lake Decatur in Central Illinois. In 2000 the city population was 81,500, and 76,122 in 2010, due to continued population decline. Prior to massive population loss, Decatur was the sixth-most populous city in Illinois. Now Decatur is listed as number fifteen among Illinois cities, as it lost 20.2% of its population from 1980 to 2010. According to Sperling's Best Places, Decatur's metropolitan area population is 114,749.
This city is home of private Millikin University and public Richland Community College. Decatur is a college town with treelined streets and vast industrial and agricultural processing production and is located in the Interior Plains of North America. Decatur is home to the corporate headquarters of international agricultural conglomerate Archer Daniels Midland. ADM made national headlines Sept. 23, 2013 as it announced 2014 plans to move the world headquarters out of Decatur after the past year's 1,000 layoffs and the sale of Hickory Point Bank by ADM. The new headquarters will likely remain in the Midwest USA as Chicago is reported as the most likely new headquarters site. Also, Minneapolis, St. Louis and Indianapolis are mentioned in media reports as possible new headquarters sites also in consideration. 
Decatur is a city in, and county seat of, DeKalb County, Georgia, United States. With a population of 19,335 in the 2010 census, the city is sometimes assumed to be larger since multiple zip codes in unincorporated DeKalb County bear the Decatur name. It is an intown suburb of Atlanta and part of the Atlanta Metropolitan Area, and its public transportation is served by three MARTA rail stations. Decatur's official motto is "A city of homes, schools and places of worship." Prior to 2000, this motto was "A city of homes, schools, and churches."
In 1822 Decatur was founded at the intersection of two Native American trails: the Sandtown which led east from the Chattahoochee River at Utoy Creek, and the Shallowford which follows today's Clairmont Road and eventually crossed near Roswell. The town was named for naval hero Stephen Decatur, and its early roads were named logically but soon after were renamed in a curious manner:
Decatur is a city in Morgan and Limestone counties in the U.S. state of Alabama. The city, affectionately known as "The River City", is located in Northern Alabama on the banks of Wheeler Lake, along the Tennessee River. It is the largest city and county seat of Morgan County. The population in 2010 census was 55,683.
Decatur is also the core city of the two-county large Decatur Metropolitan Area which had 150,125 in 2006. Combined with the Huntsville Metropolitan Area, the two create the Huntsville-Decatur Combined Statistical Area, of which Decatur is the second largest city.
Huntsvilleâ€“Decatur Combined Statistical Area
Decatur High School
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Human interest stories may be "the story behind the story" about an event, organization, or otherwise faceless historical happening, such as about the life of an individual soldier during wartime, an interview with a survivor of a natural disaster, a random act of kindness or profile of someone known for a career achievement.