The United States, China, Brazil and Nigeria have the greatest number of evangelicals according to Operation World 2010. Kenya has the highest percent evangelicals at 48.9%.

Nearly one third (2.4 billion individuals) of the earth's population reside in only 250 Least-Reached people groups.

There are six Least-Reached people groups each over 50,000,000 in population, the largest being the Shaikh of Bangladesh (134,000,000).

The four largest Least-Reached people groups are the Shaikh of Bangladesh, Japanese of Japan, the Shaikh of India, and the Brahmin of India.

The largest Least-Reached group in Central Asia without Scripture, Jesus film, or audio recordings is the Aimaq of Afghanistan, with 1,558,000 people.

The largest Least-Reached group in the Middle East / North Africa without Scripture, Jesus film, or audio recordings are the Omani Arabs of Oman, with 2,108,000 people.

The largest Least-Reached group in Southeast Asia without Scripture, Jesus film, or audio recordings is the Brunei Malay, Kedayan of Malaysia, with 361,000 people.

The largest Least-Reached group in Northeast Asia without Scripture, Jesus film, or audio recordings is the Guibian Zhuang of China, with 1,105,000 people.

Russia has 70 Muslim people groups, the largest of which is the Tatars, with 5,413,000 people.

France has 32 Muslim people groups, the largest of which is the Kabyle Berbers, with 713,000 people.

The Mumbai district of Maharashtra state in India has over 10,000,000 residents, more than many countries of the world.

South Asia has more than five times as many unreached people groups (3,678) as any other region of the world.

East and Southern Africa is the least urbanized (31%) region of the world. (World Factbook 2011)

11.4% of the world's population (878m individuals) resides in 31 large Frontier people groups. Frontier groups are those with no more than one Christian per 1,000 individuals, and require pioneering missionary work.

More than 1050 church planting movements have been reported in the world today, 2020.

If the India state of Uttar Pradesh were a country, it would be the 5th most populous in the world. (Operation World 2010).

In 2018, 55% of the world's population was urban (United Nations).

The top 10 countries with the largest Christian populations include all of the "BRIC" countries (Brazil, Russia, India and China). (Operation World 2010)

Iran is the country with the fastest growing Evangelical population at 19.6% annual growth. (Operation World 2010).

Of the 8,200 groups whose populations are under 10,000, the total number of individuals is less than 24,000,000.

253 of the 547 people groups in China do not have even Bible portions available in their primary language.

Indonesia has the greatest population of Muslim groups (239,000,000), followed by Pakistan (213,000,000) and India (186,000,000).

2,145 people groups in the world do not have Scripture portions or audio recordings available in their primary language, comprising 164,000,000 individuals.

1,896 people groups in the 10/40 Window have neither Scripture portions or the Jesus film available in their primary language, comprising 222,000,000 individuals.

3,678 people groups in South Asia are least-reached, totaling 1,705,000,000 individuals.

381 people groups in Central Asia are least-reached, totaling 279,000,000 individuals.

South Asia has the most people groups (4,100), followed by West and Central Africa (2,222), and Central Asia has the least (550).

The median population of all people groups for which Joshua Project has population values is 11,850. The mean population is 441,025.

The largest people cluster is the Chinese (1,367,512,000), followed by the Hispanic (353,236,000).

Nearly 1/4 of the world's population resides in Frontier people groups, those groups with no more than one Christian per 1,000 individuals. These groups require pioneering missionary effort.

Only 60 people groups comprise 50% of the world's population.

Of Nigeria's 539 people groups, 102 do not have Bible portions, the Jesus film, or gospel recordings available in their primary language, or 1,715,000 individuals.

Central Asia has only 1,542,000 evangelicals, followed by North Africa and Middle East (5,132,000) and Eastern Europe and Eurasia (6,423,000).

Census data (2011) indicates there are some 20,833,000 Sikhs in India, and 4,452,000 Jains.

Northeast Asia has the highest number of individuals practicing Animism (68,500,000), followed by East and Southern Africa (47,000,000). (Operation World 2010)

3/4 of the 20,833,000 Sikhs in India live in the state of Punjab. Nearly 3/4 of the 9,123,000 Buddhists in India live in the state of Maharashtra.

The unreached Parsee, found in 12 countries with over 157,000 in total, practice Zoroastrianism.

Six countries have more than 500 people groups, with India exceeding 2700.

There are 1,392 primarily Christian groups in the 10/40 Window, the largest being the Yoruba of Nigeria (34,362,000).

The largest Muslim people group is the Shaikh of Bangladesh, population 134,000,000.

The largest Hindu group is the Brahmin of India, population 58,000,000.

The largest group without even Scripture portions in their primary language is the Jin Chinese of China, population 64,000,000.

25 of the 72 people groups in Afghanistan do not have even Bible portions available in their primary language.

It has been estimated there are 460,000 villages (out of a total of 650,000 villages) in India with no known Christian presence.

South Asia has the most least-reached people groups (3,678), followed by Southeast Asia (709). Australia and Pacific has the fewest at 67.

Hindi is spoken as the primary language by 673 people groups, with English spoken by 540 and Bengali spoken by 420.

11,877 people groups have at least the New Testament available in their primary language, totaling 6,948,000,000 individuals.

3,190,000,000 individuals live in people groups (7,408) with very few, if any, believers.

The 23rd Edition of the Ethnologue indicates there are 7,117 living languages in the world, with roughly 40% in danger of not surviving. 23 languages account for more than half the world's population.

2,145 people groups totaling 164,000,000 individuals have neither Scripture, the Jesus film, or Christian recordings available in their primary language.

North America and the Caribbean have the most Evangelicals (100,500,000), followed by East and Southern Africa (100,100,000). (Operation World 2010)

There are 942 Muslim majority people groups over 100,000 in size.

There are 750 Hindu majority people groups over 100,000 in size.

There are 134 Buddhist majority people groups over 100,000 in size.

There are 1,264 Christian majority people groups over 100,000 in size.

The Muslim Shaikh have a combined population of over 233,000,000 (Bangladesh, Pakistan, India, Nepal).

The Mandarin Chinese have a combined population of over 879,000,000 (all countries of residence).

The Brahmin of India speak 91 languages, and the Rajput speak 87.

Evangelicals are growing at an annual rate of 2.6%, compared to Islam at 1.9% and Hinduism at 1.2% (Operation World 2010)

The global annual growth rate of Christianity in general is 1.2%, but the growth rate of Evangelicals is 2.6% (Operation World 2010)

The Nai of India have 93 alternate names, and the Kalal have 86 alternate names.

Some 65-70% of the world's population live in religiously restrictive countries.

2,130 people groups reside in more than one country, summing to 6,433,132,000 individuals.

11,421 people groups have the Jesus Film in their primary language, totaling 7,136,000,000 individuals.

Indonesia has the most people groups (472) whose primary language does not have Bible portions, totaling 15,726,000 individuals.

China has the largest number of individuals whose primary language does not have Bible portions (110,005,000 individuals).

Nigeria has 283 people groups (7,802,000 individuals) whose primary language does not have Bible portions available.

India has 2,445 least-reached groups, followed by Pakistan (501), and China (445).

Of India's 2,718 people groups, 1,606 have populations over 10,000, the largest being a Muslim group, the Shaikh at 84,587,000.

Papua New Guinea has the largest number of groups whose primary religion is Christianity (802), followed by Indonesia with 375.

India has the largest number of groups whose primary religion is Islam (425), followed by Pakistan with 421 and Indonesia with 254.

The United States has the largest population of groups whose primary religion is Christianity (307,000,000), followed by Brazil (209,000,000).

All but four small groups of Sri Lanka's 174 people groups have at least Bible portions available in their primary language.

472 of Indonesia's 789 people groups do not have even Bible portions available in their primary language. The largest of these is the Palembang, 3,391,000.

Of Iran's 94 people groups, all but 10 are least-reached, and all of these 10 are expatriate groups.