A population is a summation of all the organisms of the same group or species, which live in a particular geographical area, and have the capability of interbreeding. In sociology, population refers to a collection of humans. Demography is a social science which entails the statistical study of human populations.
The most populous country in Africa, Nigeria accounts for approximately one sixth of the African population (or one fifth of Sub-Saharan African population).
Approximately 50% of Nigerians are urban dwellers. At least 24 cities have populations of more than 100,000. The variety of customs, languages, and traditions among Nigeria’s 389 ethnic groups gives the country a cultural diversity. Census figures are used to determine regional funding and representation of ethnic and religious groups in government service. This provides an incentive for inflating local populations.
The most numerous ethnic groups in the northern two-thirds of the country are the Hausa and the Fulbe/Fulani, the overwhelming majority of whom are Muslim. Other major ethnic groups of the north are the Nupe, Tiv, and Kanuri. The Yoruba people are the overwhelming majority in the southwest, as well as parts of the north-central region. Over half of the Yorubas are Christian and about 40% are Muslim, while the remainder hold traditional Yoruba views. The predominantly Christian Igbo are to be found in the central parts of the southeast. Roman Catholic is the largest denomination, but Pentecostal, Anglican and other Evangelical denominations are also strong. The Efik, Ibibio, Annang, and Ijaw constitute other South Eastern populations.
Persons of different language backgrounds most commonly communicate in English, although knowledge of two or more Nigerian languages is widespread. Hausa, Yoruba, and Igbo are the most widely used native Nigerian languages.
• The population of Nigeria is estimated at 178,516,904 as of July 1 2014.
• Nigeria’s population is equivalent to 2.46% of the total world population.
• Nigeria ranks number 7 in the list of countries by population.
• The population density in Nigeria is 193 people per Km2.
• 51% of the population is urban (91,834,051 people in 2014).
• The median age in Nigeria is 17.8 years.
The total population in Nigeria was last recorded at 173.6 million people in 2013 from 45.2 million in 1960, changing 284 percent during the last 50 years. Population in Nigeria averaged 94.88 Million from 1960 until 2013, reaching an all time high of 173.60 Million in 2013 and a record low of 45.15 Million in 1960. Population in Nigeria is reported by the National Bureau of Statistics, Nigeria.
Here is the complete Population of different states in Nigeria. Data: from the 2006 national general census, in retrogressive pattern
1 Kano State 9,383,682
2 Lagos State 9,013,534
3 Kaduna State 6,066,562
4 Katsina State 5,792,578
5 Oyo State 5,591,589
6 River State 5,185,400
7 Bauchi State 4,676,465
8 Jigawa State 4,348,649
9 Benue State 4,219,244
10 Anambara State 4,182,032
11 Borno State 4,151,193
12 Delta State 4,098,391
13 Imo State 3,934,899
14 Niger State 3,950,249
15 Akwa Ibom State 3,920,208
16 Ogun State 3,728,098
17 Sokoto State 3,696,999
18 Ondo State 3,441,024
19 Osun State 3,423,535
20 Kogi State 3,278,487
21 Zamfara State 3,259,846
22 Enugu State 3,257,298
23 Kebbi State 3,238,628
24 Edo State 3,218,332
25 Plateau State 3,178,712
23 Adamawa State 3,168,101
27 Cross River State 2,888,966
28 Abia State 2,833,999
29 Ekiti State 2,384,212
30 Kwara State 2,371,089
31 Gombe State 2,353,879
32 Yobe State 2,321,591
33 Taraba State 2,300,736
34 Ebonyi State 2,173,501
35 Nasarawa State 1,863,275
36 Bayelsa State 1,703,358
And Abuja, the Federal capital territory has a total of 1,405,201 persons living in it.
From the 2006 population census, Nigerian women were outnumbered by men. The country’s total population of 140,431,790 (2006) comprises of 71,345,488 males and 69,086,302 females. This means that there are 2,259,186 more males than females in the country. Males outnumbered females only in four states of the country – Ebonyi, Enugu, Ogun and Plateau States.

According to the United Nations, the population of Nigeria will reach 440 million by 2050. Nigeria will then be the 3rd most populous country in the world. In 2100, the population of Nigeria will reach 914 million. Nigeria has experienced a population explosion for at least the last 50 years due to very high fertility rates, quadrupling its population during this time. Growth was fastest in the 1980s, after child mortality had dropped sharply, and has slowed slightly since then as the birth rate has sunk slightly. According to the 2012 revision of the World Population Prospects the total population was 159,708,000 in 2010, compared to only 37,860,000 in 1950. The proportion of children below the age of 15 in 2010 was 44.0%, 53.2% was between 15 and 65 years of age, while 2.7% was 65 years or older

• “Population”. Biology Online. Retrieved 5 December 2012.
• • “Definition of population (biology)”. Oxford Dictionaries. Oxford University Press. Retrieved 5 December 2012. a community of animals, plants, or humans among whose members interbreeding occurs
• • Hartl, Daniel (2007). Principles of Population Genetics. Sinauer Associates. p. 45. ISBN 978-0-87893-308-2.
• • Hartl, Daniel (2007). Principles of Population Genetics. Sinauer Associates. p. 95. ISBN 978-0-87893-308-2.
• • Fisher, R. A. (1999). The Genetical Theory of Natural Selection. Oxford University Press. ISBN 0-19-850440-3.
• • Gordon, Ian L. (2000). “Quantitative genetics of allogamous F2 : an origin of randomly fertilized populations”. Heredity 85: 43–52. doi:10.1046/j.1365-2540.2000.00716.x. PMID 10971690.
• • Gordon, Ian L. (2001). “Quantitative genetics of autogamous F2”. Hereditas 134 (3): 255–262. doi:10.1111/j.1601-5223.2001.00255.x. PMID 11833289.
• • U.S. Census Bureau – World Pop Clock Projection
• • to a World of Seven Billion People UNFPA 12.9.2011
• “Cities in Nigeria: 2005 Population Estimates – MongaBay.com”. Retrieved 1 July 2008.

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