| 10 of Sudan's 161 people groups have Christianity as their primary religion, and 138 have Islam as their primary religion. |
| 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 (126,000,000). |
| The four largest Least-Reached people groups are the Shaikh of Bangladesh, Japanese of Japan, the Shaikh of India, and the Turks of Turkey. |
| The largest Least-Reached group in Central Asia without Scripture, Jesus film, or audio recordings is the Aimaq of Afghanistan, with 1,632,000 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 2,213,000 people. |
| The largest Least-Reached group in Southeast Asia without Scripture, Jesus film, or audio recordings is the West Coast Bajau of Malaysia, with 247,000 people. |
| The largest Least-Reached group in Northeast Asia without Scripture, Jesus film, or audio recordings is the Western Ghao-Xong of China, with 1,413,000 people. |
| Russia has 70 Muslim people groups, the largest of which is the Tatars, with 5,415,000 people. |
| France has 32 Muslim people groups, the largest of which is the Kabyle Berbers, with 716,000 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 (3,661) 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 1370 church planting movements have been reported in the world today, 2021. |
| 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 7,800 groups whose populations are under 10,000, the total number of individuals is less than 24,000,000. |
| 269 of the 545 people groups in China do not have even Bible portions available in their primary language. |
| Indonesia has the greatest population of Muslim groups (245,000,000), followed by Pakistan (220,000,000) and India (193,000,000). |
| 2,138 people groups in the world do not have Scripture portions or audio recordings available in their primary language, comprising 165,000,000 individuals. |
| 1,935 people groups in the 10/40 Window have neither Scripture portions or the Jesus film available in their primary language, comprising 212,000,000 individuals. |
| 3,654 people groups in South Asia are least-reached, totaling 1,743,000,000 individuals. |
| 382 people groups in Central Asia are least-reached, totaling 286,000,000 individuals. |
| South Asia has the most people groups (4,042), followed by West and Central Africa (2,219), and Central Asia has the least (548). |
| The median population of all people groups for which Joshua Project has population values is 14,030. The mean population is 450,821. |
| The largest people cluster is the Chinese (1,378,000,000), followed by the Hispanic (360,667,000). |
| 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 538 people groups, 103 do not have Bible portions, the Jesus film, or gospel recordings available in their primary language, or 1,854,000 individuals. |
| Central Asia has only 988,000 evangelicals, followed by North Africa and Middle East (5,448,000) and Eastern Europe and Eurasia (6,381,000). |
| 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 11 countries with over 153,000 in total, practice Zoroastrianism. |
| Seven countries have more than 500 people groups, with India exceeding 2350. |
| There are 1,376 primarily Christian groups in the 10/40 Window, the largest being the Yoruba of Nigeria (36,147,000). |
| The largest Muslim people group is the Shaikh of Bangladesh, population 126,000,000. |
| The largest Hindu group is the Brahmin of India, population 59,000,000. |
| The largest group without even Scripture portions in their primary language is the Jin Chinese of China, population 64,000,000. |
| 26 of the 70 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 (3,361), followed by Southeast Asia (685). Australia and Pacific has the fewest at 68. |
| Hindi is spoken as the primary language by 630 people groups, with English spoken by 539 and Bengali spoken by 385. |
| 11,748 people groups have at least the New Testament available in their primary language, totaling 7,098,000,000 individuals. |
| 3,274,000,000 individuals live in people groups (7,398) with very few, if any, believers. |
| The 24th Edition of the Ethnologue indicates there are 7,139 living languages in the world, with roughly 40% in danger of not surviving. 23 languages account for more than half the world's population. |
| 2,138 people groups totaling 165,000,000 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 1067 Muslim majority people groups over 100,000 in size. |
| There are 770 Hindu majority people groups over 100,000 in size. |
| There are 134 Buddhist majority people groups over 100,000 in size. |
| There are 1,273 Christian majority people groups over 100,000 in size. |
| The Muslim Shaikh have a combined population of over 223,000,000 (Bangladesh, Pakistan, India, Nepal). |
| The Mandarin Chinese have a combined population of over 885,000,000 (all countries of residence). |
| The Gond people of India speak 105 languages, and the Rajput speak 85. |
| 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. |
| 2,180 people groups reside in more than one country, summing to 6,572,000,000 individuals. |
| 11,421 people groups have the Jesus Film in their primary language, totaling 7,299,000,000 individuals. |
| Indonesia has the most people groups (447) whose primary language does not have Bible portions, totaling 7,363,000 individuals. |
| China has the largest number of individuals whose primary language does not have Bible portions (112,000,000 individuals). |
| Nigeria has 291 people groups (8,200,000 individuals) whose primary language does not have Bible portions available. |
| India has 2,142 least-reached groups, followed by Pakistan (821), and China (442). |
| Of India's 2,379 people groups, 1,633 have populations over 10,000, the largest being a Muslim group, the Shaikh at 85,885,500 |
| Papua New Guinea has the largest number of groups whose primary religion is Christianity (804), followed by the United States with 377. |
| Pakistan has the largest number of groups whose primary religion is Islam (681), followed by India with 395 and Indonesia with 256. |
| The United States has the largest population of groups whose primary religion is Christianity (309,000,000), followed by Brazil (212,000,000). |
| All but one group of Sri Lanka's 166 people groups have at least Bible portions available in its primary language. |
| 447 of Indonesia's 789 people groups do not have even Bible portions available in their primary language. The largest of these is the Sumbawa, 462,000. |
| Of Iran's 94 people groups, all but 10 are least-reached, and all of these 10 are expatriate groups. |
