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Reasons for immigration are seemingly as numerous and diverse as the people who come to the United States. Since the first English settlers established Jamestown in 1607 on land that would later be part of the United Sta... More »

www.reference.com Geography United States

As of October 2014, the United States Census Bureau estimates that there are approximately 319,166,000 people living in the 50 states and the District of Columbia. This calculation is based on the most recent census data... More »

www.reference.com World View Social Sciences Population & Demography

As of July 2014, there are 139 million people employed in the United States. This number is up by 209,000 employees from June and by 1.47 million from the beginning of 2014. More »

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As of 2015, the most populous cities in the United States are New York, Los Angeles, Chiciago and Houston, each with populations between two and eight million people. Philadelphia, San Antonio, San Diego and Dallas all h... More »

www.reference.com Geography United States

The United States is a large nation with diverse geographical features, such as the highest mountain peak in North America, five different climates and the world's largest coal reserves, reports the Central Intelligence ... More »

www.reference.com Geography United States

Some of the worst cities in the United States in which to live as of 2015 include St. Louis, Missouri; Reno, Nevada; New Orleans, Louisiana; Birmingham, Alabama; and Memphis, Tennessee. California alone contains several ... More »

www.reference.com Geography United States

The vertical length of the continental United States is 1,582 miles, using point-to-point, straight-line measurements. There is a total land mass of 3,537,438 square miles, which includes all 50 states and the District o... More »

www.reference.com Geography United States