Washington, D.C., is the capital city of the United States of America. "D.C." is an abbreviation for the District of Columbia, the federal district coextensive with the city of Washington. The city is named after George Washington, military leader of the American Revolution and the first President of the United States. Columbia in this context is an early poetic name for the United States of America. The city is commonly referred to as The District or simply Washington. Historically, it was called the Federal City or Washington City. To avoid confusion with the state of Washington, located in the Pacific Northwest, the city is often called simply D.C.

As of 2007, District of Columbia's population is 557,598 people. Since 2000, it has had a population growth of -2.60 percent. The median home cost in District of Columbia is $430,800. Home appreciation the last year has been 19.20 percent. Compared to the rest of the country, district of Columbia's cost of living is 65.92% higher than the U.S. average. Washington public schools spend $8,556 per student. The average school expenditure in the U.S. is $6,058. There are about 13.6 students per teacher in Washington. The District of Columbia, unemployment rate in Washington is 6.10 percent. Recent job growth is Positive. Washington jobs have increased by 3.60 percent.

2007 report found that approximately one third of the population is illiterate, compared to a rate of about one fifth nationally. One of the primary reasons attributed to this is the high growing number of Hispanic and Ethiopian immigrants who number 170,000 people in the city.

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