World Population. A value below 2.1 will cause the native population to decline, See also: Countries in the world ranked by Life Expectancy. This pie chart is based on statistics listing peoples self-admitted adherence to one of the major world religions, or to other faiths, or to people stating that they are of no religion. Some portion of the population counted as "working age" may actually be unemployed or not in the labor force whereas some portion of the "dependent" population may be employed and not necessarily economically dependent. As of 2005[update], the world had 62 metropolitan areas with a population of over 3,000,000 people each. Based on a definition of urban agglomeration that is not restricted to state boundaries. To gain in-depth insight into America's Population by Race, just as indicated by the US Census Bureau's population clock, the assessed 2018 United States population (February 2018) is 327.16 million. American Prison Population By Race; So, let us take a roll on this quickly. Singapore: Research Publishing Service, Clarke, Peter B. The population has grown only modestly since then, and it is now estimated to be just 2.99 million. Qatar has the highest male ratio, with 2.87 males/female. 96% of the urban population has access to improved drinking water, while only 78% of rural inhabitants have improved drinking water. The country with the lowest birth rate is Japan at 7.64 births per 1000 people. Homo sapiens appear to have occupied all of Africa about 300,000 years ago, moved out of Africa 50,000 – 60,000 years ago, and had spread across Australia, Asia and Europe by 30,000 years BC. With wealth, contraception becomes affordable. For the group aged below 15, Sierra Leone has the highest female ratio with 0.96 males/female, and Georgia and China are tied for the highest male ratio with 1.13 males/female (according to the 2006 CIA World Factbook). Most are in coastal regions. According to Jean Ziegler (the United Nations Special Rapporteur on the Right to Food for 2000 to March 2008), mortality due to malnutrition accounted for 58% of the total mortality in 2006: "In the world, approximately 62 millions people, all causes of death combined, die each year. Total population: 83.7% over the age of 15 can read and write, 88.3% male and 79.2% female 76% of the urban population has access to sanitation facilities, while only 45% of the rural population has access. For example, in April 2011, the U.S. CDC announced that the birth rate for women over the age of 40 in the U.S. rose between 2007 and 2009, while it fell among every other age group during the same time span. Countries on the Arabian Peninsula tend to have a "natural" ratio of about 1.05 at birth but a very high ratio of males for those over 65 (Saudi Arabia 1.13, United Arab Emirates 2.73, Qatar 2.84), indicating either an above-average mortality rate for females or a below-average mortality for males, or, more likely in this case, a large population of aging male guest workers. East asian (mongoloid ) 4. It is highest in Switzerland (18.3) and lowest in Mexico (1.1). The 2001 Census of India had 8.4 million Jains. Yearly Change + 1.05% Fertility in the World. The "First World" G7 members all have a gender ratio in the range of 0.95–0.98 for the total population, of 1.05–1.07 at birth, of 1.05–1.06 for the group below 15, of 1.00–1.04 for the group aged 15–64, and of 0.70–0.75 for those over 65. Several of the most densely populated territories in the world are city-states, microstates or dependencies. Population growth was highest in Qatar (174%) and United Arab Emirates (140%).. View live population, charts & trends: Population of the World, A Total Fertility Rate (TFR) of 2.1 represents the Replacement-Level Fertility: the average number of children per woman needed for each generation to exactly replace itself without needing international immigration. Various fertility factors may be involved, such as education and urbanization. Observations Concerning the Increase of Mankind, Peopling of Countries, etc. Following is some available data based on the work of the World Christian Encyclopedia:, Studies conducted by the Pew Research Center have found that, generally, poorer nations had a larger proportion of citizens who found religion to be very important than richer nations, with the exceptions of the United States and Kuwait. , Some countries experienced negative population growth, especially in Eastern Europe mainly due to low fertility rates, high death rates and emigration. All three ratios are commonly multiplied by 100.  These territories share a relatively small area and a high urbanization level, with an economically specialized city population drawing also on rural resources outside the area, illustrating the difference between high population density and overpopulation. The world's population is predominantly urban and suburban, and there has been significant migration toward cities and urban centres. This was estimated at the time to still be half the true number. , According to the 2006 CIA World Factbook, around 27% of the world's population is below 15 years of age. In the realm of Western civilization, there has been an increase in the number of people who identify themselves as secular humanists. Conversely, countries of Eastern Europe (the Baltic states, Belarus, Ukraine, Russia) tend to have a "normal" ratio at birth but a very low ratio of males among those over 65 (Russia 0.46, Latvia 0.48, Ukraine 0.52); similarly, Armenia has a far above average male ratio at birth (1.17), and a below-average male ratio above 65 (0.67).