The average density of population is 30 people/km2, but it varies considerably in different parts of the country:
Region
Density
people/km2
Region
Density
people/km2
Industrial North-East
North & South DakotaNebraska
The Pacific Coast
more 65
The Cordilleras (Wyoming to Colorado)
2-12
The South
more 30
Alaska
less 1
However, one should keep in mind the high mobility of the population. It’s closely connected with the rate and level of development of the country. The average American changes the place of living at least 7times during his/her lifetime.
As far as the rate of the urban and rural population is concerned, the US is a highly urbanized society. The percentage of urban settlers comprises 82% of total and the rate of urbanization is 1.2% (census 2010). As for the rural population, it’s only 17,86%.
States by population
State
Number
(census 2010)
State
Number
(census 2010)
California
37,253,956
Florida
18,801,310
Texas
25,145,561
Illinois
12,830,632
New York
19,378,102
Pennsylvania
12,702,379
States by density of population
State
Density
(mile2\km2)
State
Density
(mile2\km2)
New Jersey
1,205\ 465
Connecticut
741,4\ 286,3
Rhode Island
1,016\ 392
Montana (48th place)
6,858\ 2,648
Massachusetts
852,1\ 329
Alaska (50th place)
1,264\ 0,488
The Largest Cities by population
City
Number
(census 2010)
City
Number
(census 2010)
New York City
19,015,900
Dallas
6,526,548
Los Angeles
12,944,801
Houston
6,086,538
Chicago
9,504,753
Philadelphia
5,992,414
D Age Structure of Population
Average ages are 36.8 years; males are 35.5 years; females are 38.1 years estimated as of 2010.
As of 2010, people are distributed by age as follows:
Age group
Percentage
Male
Female
0–14 years
20.2%
31,639,127
30,305,704
15–64 years
67%
102,665,043
103,129,321
65 years - over
12.8%
16,901,232
22,571,696
The average life expectancy of a person born in the US in 2010 is 78.11 years. As in most countries in the world, US women have a higher life expectancy than men - women born in 2010 can expect to live for 80.69 years, while men can only expect to live for 75.65 years.
Compared to the rest of the world, using data compiled by the United Nations between 2005 and 2010, the US is only 37th in the world - sandwiched between Cuba and Portugal.
Birth and Death Rates
The growth rate is 0.739% as estimated from 2013-2010 by the US Census
The birth rate is 13.5 births/1,000 population, estimated as of 2010. This was the lowest in a century. There were 4,136,000 births in 2009.
In 2009, Time magazine reported that 40% of births were to unmarried women. The following is a breakdown by race for unwed births:
Ethnic Group
Percentage of births
Ethnic Group
Percentage of births
African American
72%
Whites
29%
Native Americans
66%
Asians
17%
Hispanics
53%
Death rate was estimated at 8.38 deaths/1,000 population as of July, 2010.
Infant mortality rate
total: 6.22 deaths/1,000 live births
male: 6.9 deaths/1,000 live births
female: 5.53 deaths/1,000 live births (2010 est.)
Sex ratios
at birth: 1.048 male(s)/female
under 15 years: 1.04 male(s)/female
15-64 years: 1 male(s)/female
65 years and over: 0.75 male(s)/female
total population: 0.97 male(s)/female (2010 est.)
E Population by Religion
The United States Constitution ensures the right to religious freedom and prevents the development of an official state religion. The lack of official involvement in religion means that no questions about religion are asked in the census and, as a result, limited and sometimes questionable data is available.
The survey below, the American Religious Identification Survey (ARIS) 2008, was a random digit-dialed telephone survey of 54,461 American residential households in the contiguous United States.
It reported that the vast majority of Americans are believers in a single religion - according to a 2007 survey, 78% of respondents identified themselves as Christians. Just over half (51.3%) of all Americans are Protestants, and almost a quarter (23.9%) are Catholic. Other Christian denominations make up 3.3% of the population.
Jews (1.7%), Buddhists (0.7%) and Muslims (0.6%) are the next largest religious groups in the US and 16.1% of Americans declared themselves to have no religion.
NB! Some American religious denominations:
Religious Denomination
Number or
Percentage
Features
The Amish
249,000
are a group of traditionalist Christian church fellowships. The Amish are known for simple living, plain dress, and reluctance to adopt many conveniences of modern technology.
The history of the Amish church began in 1693 in Switzerland within a group of Swiss Anabaptists led by Jakob Ammann. Those who followed him became known as Amish. In the early 18th century, many Amish immigrated to Pennsylvania for a variety of reasons. Today, the most traditional descendants of the Amish continue to speak Pennsylvania German, also known as "Pennsylvania Dutch". They value rural life, manual labor and humility.
The Mennonites
110,696
are a Christian group based around the church communities of Anabaptist denominations named after Menno Simons (1496–1561) of Friesland. Through his writings, Simons articulated and formalized the teachings of earlier Swiss founders. The teachings of the Mennonites were founded on their belief in both the mission and ministry of Jesus Christ. Over the years, Mennonites have become known as one of the historic peace churches because of their commitment to pacifism. In the US they appeared in the early 18th century together with Amish and settled in Pennsylvania.
The Mormons
3,158
(1,4%)
are a religious and cultural group related to Mormonism, the principal branch of the Latter Day Saint movemment. Today Mormons are understood to be members of The Church of Jesus Christ of Latter-day Saints (LDS Church). The center of Mormon cultural influence is in Utah. Mormons self-identify as Christian, though some of their beliefs differ from mainstream Christianity. Mormons believe in the Bible, as well as other books of scripture, such as the Book of Mormon. Central to Mormon faith is the belief that God speaks to his children and answers their prayers. Mormons dedicate large amounts of time and resources to serving in their church. Mormons have a health code that excludes alcoholic beverages, tobacco, coffee, tea, and other addictive substances. They tend to be very family-oriented, and have strong connections across generations and with extended family, reflective of their belief that families can be sealed together beyond death and throughout eternity.