Barack Obama

The current U.S. population is about more than 300 million people. The U.S. has the third largest population in the world, but still more than a mere 5% of the world population resides in the United States.

The year 1790 brought the U.S. the first census. At this time, there was quite 4 million people in the country. Since then, every 100 million mark was reached faster and faster than before. It is estimated that the U.S. be 400 million people in 2043.

Fertility rates and immigration have a great impact on population size. The fertility rate in the United States is 2.1 children per woman, fairly stable and modest population growth zero growth rate of fertility, especially compared to the rest of the world. Immigration has a greater impact on population growth as an immigrant every 29 seconds earned in the United States.

Current U.S. population maps show that residents are choosing to live. The higher density areas include Los Angeles / Orange County area with more than 10,000,000 people in general, as well as across the country, in New York City / Tri State Metropolitan area also has more than 10,000,000 inhabitants. Residents little less popular, but yet with a base of residents aged between 5,000,000 and 10,000,000 include areas such as the Bay Area of San Francisco, Providence, Rhode Island area, Detroit, Michigan, the Washington DC and Chicago, Illinois.

Between 2.5 million and 5 million people choose to live in the middle range of populated areas like San Diego, California, Seattle, Washington, Phoenix, Arizona, St. Louis, Missouri, Dallas / Forth Worth, Texas, Houston, Miami, Florida, Atlanta, Georgia, and Minneapolis / St. Paul, Minnesota.

People who choose to live in areas of 1.5 to 2.5 million people are cities:

Sacramento, California
-Portland/Salem, Maine,
-Denver, Colorado,
San Antonio, Texas,
-Indianapolis, Indiana,
-Kansas City, Missouri
-Pittsburgh, Pennsylvania
"Orlando, Florida
-Tampa Bay / St. Petersburg, Florida,

U.S. by population density affect many aspects of life, government taxes and fees and electoral votes. Due to the enormous size of California and elsewhere, are awarded 55 electoral votes that makes them necessary and very important the state to "win" for any presidential candidate. Other states with high numbers of electoral votes, including Florida, Illinois, New York and Texas.

United States experienced a jump of 13% in the population during the 1990s. Population rankings behind only China and India.

Although behind India in total population, the United States has a greater number of elderly (80 years and older) population.

The U.S. have fewer children under 5 years of age in the population of Nigeria, although the U.S. has twice the population of Nigeria (Nigeria has a higher fertility rate).

The U.S. was not the only country in population growth during the 90s. China recorded an increase of 11%, India up 19%, Nigeria, an increase 33% and a whopping Indonesia up 19%.

There are many situations and circumstances facing a country with almost a zero rate of population growth. Health care for a growing number of elderly, and the distribution of jobs among the highest numbers of people in their years of work are concepts that must be managed and controlled by government officials.

Population Reduction after economic collapse 2009