As of 2010, Christianity was the religion with the most followers worldwide, followed by Islam (Muslims) and Hinduism. In the forty years between 2010 and 2050, it is projected that the landscape of world religions will undergo some noticeable changes, with the number of Muslims almost catching up to Christians. The changes in population sizes of each religious group is largely dependent on demographic development, for example, the rise in the world's Christian population will largely be driven by population growth in Sub-Saharan Africa, while Muslim populations will rise across various regions of Africa and South Asia. As India's population is set to grow while China's goes into decline, this will be reflected in the fact that Hindus will outnumber the unaffiliated by 2050. In fact, India may be home to both the largest Hindu and Muslim populations in the world by the middle of this century.

In 2020, around 28.8 percent of the global population were identified as Christian. Around 25.6 percent of the global population identify as Muslims, followed by 14.9 percent of global populations as Hindu. The number of Muslims increased by 347 million, when compared to 2010 data, more than all other religions combined.

The World Religion Project (WRP) aims to provide detailed information about religious adherence worldwide since 1945. It contains data about the number of adherents by religion in each of the states in the international system. These numbers are given for every half-decade period (1945, 1950, etc., through 2010). Percentages of the states' populations that practice a given religion are also provided. (Note: These percentages are expressed as decimals, ranging from 0 to 1, where 0 indicates that 0 percent of the population practices a given religion and 1 indicates that 100 percent of the population practices that religion.) Some of the religions (as detailed below) are divided into religious families. To the extent data are available, the breakdown of adherents within a given religion into religious families is also provided.

The project was developed in three stages. The first stage consisted of the formation of a religion tree. A religion tree is a systematic classification of major religions and of religious families within those major religions. To develop the religion tree we prepared a comprehensive literature review, the aim of which was (i) to define a religion, (ii) to find tangible indicators of a given religion of religious families within a major religion, and (iii) to identify existing efforts at classifying world religions. (Please see the original survey instrument to view the structure of the religion tree.) The second stage consisted of the identification of major data sources of religious adherence and the collection of data from these sources according to the religion tree classification. This created a dataset that included multiple records for some states for a given point in time. It also contained multiple missing data for specific states, specific time periods and specific religions. The third stage consisted of cleaning the data, reconciling discrepancies of information from different sources and imputing data for the missing cases.

The Global Religion Dataset: This dataset uses a religion-by-five-year unit. It aggregates the number of adherents of a given religion and religious group globally by five-year periods.

Encuesta de Fecundidad: Females between 15 and 49 years, non knowledge of contraceptions religious belief number of live births. National. Fem. non knowledge of contrac. by rel. belief and No. live births (rel.fig).

This graphic shows the forecasted number of Christians, Muslims, Jews, Hindus, Buddhists, religiously unaffiliated people, believers in folk religions and in other religions in France in 2022. With almost ** million people identifying themselves as Christians, Christianity was the most represented religion in France. Furthermore, about **** million people considered themselves religiously unaffiliated.

This dataset was found online at the Association of Religious Data Archives (ARDA) website. http://www.thearda.com/ . This data set shows information on religous groups throughout the United States. All data was uploaded as a polypoint centroids per county in the United States, in shapefile format. This Data set shows the Total congregations, Total Adherents, and Rate of Adherence per 1000 population for All religions in the United States and for the Mainline Religions.

In 2020, Indonesia recorded the largest population of Muslims worldwide, with around 239 million. This was followed with around 226.88 million Muslims in Pakistan and 213 million Muslims in India.

Encuesta de Fecundidad: Fem. marri. or part. risk of preg. or preg., without int. have more child. religious belief currently number of live births (including possible pregnancy in progress). National. Females by economic activity and level of studies.

Encuesta de Fecundidad: Fem. with risk of preg. or preg., without intent. to have more children religious belief currently number of live births (including possible pregnancy in progress). National. Fem.risk preg.or preg.,without int. have more child.,rel.bel. and No.live child.

Encuesta de Fecundidad: Females between 15 and 49 years, married sometime religious belief number of live births. National. Distribution of females by religious belief and No. live births. (rel.fig.).

India Census: Population: by Religion: Muslim: Urban data was reported at 68,740,419.000 Person in 2011. This records an increase from the previous number of 49,393,496.000 Person for 2001. India Census: Population: by Religion: Muslim: Urban data is updated yearly, averaging 59,066,957.500 Person from Mar 2001 (Median) to 2011, with 2 observations. The data reached an all-time high of 68,740,419.000 Person in 2011 and a record low of 49,393,496.000 Person in 2001. India Census: Population: by Religion: Muslim: Urban data remains active status in CEIC and is reported by Census of India. The data is categorized under India Premium Database’s Demographic – Table IN.GAE001: Census: Population: by Religion.

Sikhism is a religion that originated on the Indian subcontinent during the fifteenth century. Sikhs follow the teachings of 'gurus', who descend from the first guru Guru Naruk who established the faith. Followers of Sikhism are monotheists, believing in only one god, and other core beliefs include the need to meditate, the importance of community and communal living, and the need to serve humanity selflessly (or 'seva'). Sikhism and the British Empire In total, there are around 26 million Sikhs worldwide, and over 24 million of these live in India. Outside of India, the largest Sikh populations are mostly found in former territories of the British Empire - the UK and Canada both have Sikh populations of over half a million people. Migration from India to other parts of the British Empire was high in the 19th century, due to the labor demands of relatively newer colonies, as well as those where slavery had been abolished. These countries also remain popular destinations for Sikh migrants today, as many are highly trained and English-speaking. Other regions with significant Sikh populations Italy also has a sizeable Sikh population, as many migrated there after serving there in the British Army during WWI, and they are now heavily represented in Italy's dairy industry. The Sikh population of Saudi Arabia is also reflective of the fact that the largest Indian diaspora in the world can now be found in the Middle East - this is due to the labor demands of the fossil fuel industries and their associated secondary industries, although a large share of Indians in this part of the world are there on a temporary basis.

Census: Population: by Religion: Muslim: Uttarakhand data was reported at 1,406,825.000 Person in 03-01-2011. This records an increase from the previous number of 1,012,141.000 Person for 03-01-2001. Census: Population: by Religion: Muslim: Uttarakhand data is updated decadal, averaging 1,209,483.000 Person from Mar 2001 (Median) to 03-01-2011, with 2 observations. The data reached an all-time high of 1,406,825.000 Person in 03-01-2011 and a record low of 1,012,141.000 Person in 03-01-2001. Census: Population: by Religion: Muslim: Uttarakhand data remains active status in CEIC and is reported by Office of the Registrar General & Census Commissioner, India. The data is categorized under India Premium Database’s Demographic – Table IN.GAE003: Census: Population: by Religion: Muslim.

Islam is the major religion in many African countries, especially in the north of the continent. In Comoros, Libya, Western Sahara, at least 99 percent of the population was Muslim as of 202. These were the highest percentages on the continent. However, also in many other African nations, the majority of the population was Muslim. In Egypt, for instance, Islam was the religion of 79 percent of the people. Islam and other religions in Africa Africa accounts for an important share of the world’s Muslim population. As of 2019, 16 percent of the Muslims worldwide lived in Sub-Saharan Africa, while 20 percent of them lived in the Middle East and North Africa (MENA) region. Together with Christianity, Islam is the most common religious affiliation in Africa, followed by several traditional African religions. Although to a smaller extent, numerous other religions are practiced on the continent: these include Judaism, the Baha’i Faith, Hinduism, and Buddhism. Number of Muslims worldwide Islam is one of the most widespread religions in the world. There are approximately 1.9 billion Muslims globally, with the largest Muslim communities living in the Asia-Pacific region. Specifically, Indonesia hosts the highest number of Muslims worldwide, amounting to over 200 million, followed by India, Pakistan, and Bangladesh. Islam is also present in Europe and America. The largest Islamic communities in Europe are in France (5.72 million), Germany (4.95 million), and the United Kingdom (4.13 million). In the United States, there is an estimated number of around 3.45 million Muslims.

World Youth Day experiences (personal or from family members). Perception and evaluation of World Youth Day coverage. Impact and sustainability of World Youth Day. Attitudes towards religion and the Church. Topics: 1. World Youth Day experiences (personal or of family members): Participation in the World Youth Day in Cologne and form of the event; length of stay at the World Youth Day; previous participation in a major religious event (previous World Youth Day, Taizé, pilgrimage, church day, other (open)); family members as participants in the World Youth Day and relationship; length of stay of family members; guests during the World Youth Day or the days of the encounter; country of origin of the guests; contact; personal participation or participation of family members in the days of the encounter; form of participation. 2. Perception and evaluation of the coverage of WYD: Perception of the coverage of WYD in different media; live broadcasts of WYD seen or heard; topics of these live broadcasts; number of hours of live broadcasts watched in total; aspects of the coverage that remained in the memory; evaluation of the media coverage of WYD. 3.Impact and sustainability of WYD: WYD as a motivation to participate in the Church; more conversations about faith and religion due to WYD in the personal environment; expected impact of WYD in the areas of religion, Mass, Church and community; consequences of WYD (open); expected long-term impact of WYD on the personal environment; change in the Pope´s image due to WYD coverage; positive or negative change in the Pope´s image. 4. Attitudes towards religion and church: religious affiliation; attitude towards the institution of church; frequency of church service attendance; personal involvement in a church group; nature of this church group; self-assessment of religiosity; church must change; basic trust through faith; religion and faith as old hat or uninteresting; desire for more influence of faith and religion in society; stronger interest of young people in religion and faith than it appears (religious silence spiral). Demography: sex; age (year of birth); religious denomination; highest school-leaving qualification; marital status; own children; number of children; occupational status. Additionally coded: ID; city size. Weltjugendtagerfahrungen (persönlich oder von Familienmitgliedern). Wahrnehmung und Bewertung der Berichterstattung über den Weltjugendtag. Auswirkungen und Nachhaltigkeit des Weltjugendtags. Einstellungen zu Religion und Kirche. Themen: 1. Weltjugendtagerfahrungen (persönlich oder von Familienmitgliedern): Teilnahme am Weltjugendtag in Köln und Form der Veranstaltung; Aufenthaltsdauer auf dem Weltjugendtag; frühere Teilnahme an einer religiösen Großveranstaltung (früherer Weltjugendtag, Taizé, Wallfahrt, Kirchentag, sonstiges (offen)); Familienmitglieder als Teilnehmer am Weltjugendtag und Verwandtschaftsverhältnis; Aufenthaltsdauer der Familienmitglieder; Gäste während des Weltjugendtages oder den Tagen der Begegnung; Herkunftsland der Gäste; Kontakt; persönliche Teilnahme bzw. Teilnahme von Familienmitgliedern an den Tagen der Begegnung; Form der Teilnahme. 2. Wahrnehmung und Bewertung der Berichterstattung über den Weltjugendtag: Wahrnehmung der Berichterstattung über den Weltjugendtag in verschiedenen Medien; Live-Übertragungen vom Weltjugendtag gesehen bzw. gehört; Themen dieser Live-Übertragungen; Stundenzahl der verfolgten Live-Übertragungen insgesamt; Aspekte der Berichterstattung, die im Gedächtnis geblieben sind; Bewertung der Medienberichterstattung zum Weltjugendtag. 3. Auswirkungen und Nachhaltigkeit des Weltjugendtags: Weltjugendtag als Motivation zur Mitarbeit in der Kirche; mehr Gespräche über Glauben und Religion aufgrund des Weltjugendtages im persönlichen Umfeld; erwartete Auswirkungen des Weltjugendtages in den Bereichen Religion, Messe, Kirche und Gemeinde; Folgen des Weltjugendtages (offen); erwarteter langfristiger Einfluss des Weltjugendtages auf das persönliche Umfeld; Veränderung des Papst-Images durch die Berichterstattung über den Weltjugendtag; positive oder negative Veränderung des Papst-Images. 4. Einstellungen zu Religion und Kirche: Religionszugehörigkeit; Einstellung zur Institution Kirche; Häufigkeit von Gottesdienstbesuchen; persönliches Engagement in einer kirchlichen Gruppe; Art dieser kirchlichen Gruppe; Selbsteinschätzung der Religiosität; Kirche muss sich ändern; Grundvertrauen durch den Glauben; Religion und Glauben als alter Hut bzw. uninteressant; Wunsch nach mehr Einfluss von Glaube und Religion in der Gesellschaft; stärkeres Interesse von Jugendlichen an Religion und Glauben als es den Anschein hat (religiöse Schweigespirale). Demographie: Geschlecht; Alter (Geburtsjahr); Konfession; höchster Schulabschluss; Familienstand; eigene Kinder; Kinderzahl; berufliche Stellung. Zusätzlich verkodet wurde: ID; Ortsgröße.

This statistic shows the estimated number of Muslims living in different European countries as of 2016. Approximately **** million Muslims were estimated to live in France, the most of any country listed. Germany and the United Kingdom also have large muslim populations with **** million and **** million respectively.

Encuesta de Fecundidad: Average number of children live births of females between 15 and 49 years religious belief and AC of residence. National. No. of children live births by religious belief and AC of resid.

This graph shows the number of religious adherents in the United States in 2010, by state. In 2010, about 16.7 million adherents to various religions were living in California.

The latest population figures produced by the Office for National Statistics (ONS) on 28 June 2018 show that an estimated 534,800 people live in Bradford District – an increase of 2,300 people (0.4%) since the previous year.

Bradford District is the fifth largest metropolitan district (in terms of population) in England, after Birmingham, Leeds, Sheffield and Manchester although the District’s population growth is lower than other major cities.

The increase in the District’s population is largely due to “natural change”- there have been around 3,300 more births than deaths, although this has been balanced by a larger number of people leaving Bradford to live in other parts of the UK than coming to live here and a lower number of international migrants. In 2016/17 the net internal migration was -2,700 and the net international migration was 1,700.

A large proportion of Bradford’s population is dominated by the younger age groups. More than one-quarter (29%) of the District’s population is aged less than 20 and nearly seven in ten people are aged less than 50. Bradford has the highest percentage of the under 16 population in England after the London Borough of Barking and Dagenham, Slough Borough Council and Luton Borough Council.

The population of Bradford is ethnically diverse. The largest proportion of the district’s population (63.9%) identifies themselves as White British. The district has the largest proportion of people of Pakistani ethnic origin (20.3%) in England.

The largest religious group in Bradford is Christian (45.9% of the population). Nearly one quarter of the population (24.7%) are Muslim. Just over one fifth of the district’s population (20.7%) stated that they had no religion.

There are 216,813 households in the Bradford district. Most households own their own home (29.3% outright and 35.7% with a mortgage). The percentage of privately rented households is 18.1%. 29.6% of households were single person households.

Information from the Annual Population Survey in December 2017 found that Bradford has 228,100 people aged 16-64 in employment. At 68% this is significantly lower than the national rate (74.9%). 91,100 (around 1 in 3 people) aged 16-64, are not in work. The claimant count rate is 2.9% which is higher than the regional and national averages.

Skill levels are improving with 26.5% of 16 to 74 year olds educated to degree level. 18% of the district’s employed residents work in retail/wholesale. The percentage of people working in manufacturing has continued to decrease from 13.4% in 2009 to 11.9% in 2016. This is still higher than the average for Great Britain (8.1%).

Religion and values. This study number comprises the data collected during the so called main studies. The main studies represent three surveys which have partially been used for methodic experiments. The questions are identical in every survey except for the described differences. Topics: attitude towards the environment: willigness to spend part of the income on the environment; disastrous consequences of human intervention in nature; human ingenuity will ensure that the earth stays inhabitable; nature´s self-regulation compensates the influences of the modern industrialized countries; an ecological disaster is inevitable; importance of areas of life (work, family, friends and acquaintances, leisure, politics, religion, voluntary work, health); self-assessment of religiosity (scalometer); confession, frequency of church attendance; importance of religious birthday, wedding and funeral ceremonys; relationship between church and politics (church leaders should not try to influence people´s election decision; church leaders should not try to influence the government´s decisions); religious belief and sciences (too much trust in sciences); religion as a source of conflicts; pious people´s intolerance; evaluation of the power of the church and religious organizations; belief in God. Demography: born in today´s Germany; state of birthplace; if not born in today´s Germany: since when does the respondent live in Germany (year); where did the respondent mainly live during his youth; if the respondent lived in Germany during his youth: state; citizenship; willigness to move into one of the new or one of the old states; willingness to move into another EU country; local ties; previous regional mobility; in contact with foreigners living in Germany; in contact with Germans (if the respondent is not a German citizen); attitude towards immigration to Germany (immigrants of the same respectively a different ethnic group and immigrants from poorer non-European countries); immigration good for economy; immigration as an enrichment of cultural life; immigration makes Germany a better place; evaluation of the discrimination against specific groups in Germany (ethnic backgound, sex, sexual orientation (e.g. homosexuality), age, religion or confession of faith, disability); self-reported diligence in answering the questionnaire (not asked in main study 1); evaluation of the survey (interesting, rich in variety, important for sciences, long, difficult, too personal); interruption of the survey; personal remarks about the survey. Additionally encoded: amount of the respondent´s incentive. Religion und Wertorientierung. Unter dieser Studien-Nr. sind die Daten der drei sog. Hauptstudien archiviert. Die Hauptstudien stellen drei Befragungsdurchgänge dar, die z.T. für methodische Experimente genutzt wurden. Die Fragen sind in allen Befragungen identisch, bis auf die beschriebenen Unterschiede. Themen: Einstellung zur Umwelt: Bereitschaft einen Teil des Einkommens für die Umwelt auszugeben; katastrophale Folgen des menschlichen Eingreifens in die Natur; durch menschlichen Erfindungsreichtum bleibt die Erde bewohnbar; Selbstregulierung der Natur gleicht die Einflüsse der modernen Industrienationen aus; ökologische Katastrophe unausweichlich; Wichtigkeit der Lebensbereiche (Arbeit, Familie, Freunde und Bekannte, Freizeit, Politik, Religion, ehrenamtliche Arbeit, Gesundheit); Selbsteinstufung der Religiosität (Skalometer); Konfession, Kirchgangshäufigkeit; Wichtigkeit religiöser Feiern bei Geburt, Hochzeiten und Beerdigungen; Verhältnis von Kirche und Politik (Kirchenoberhäupter sollten nicht versuchen, die Wahlentscheidung der Leute zu beeinflussen; Kirchenoberhäupter sollten nicht versuchen, die Entscheidungen der Regierung zu beeinflussen); Glaube und Wissenschaft (zu großes Vertrauen in die Wissenschaft); Religionen als Quelle von Konflikten; Intoleranz der Strenggläubigen; Beurteilung der Macht der Kirche und religiöser Organisationen; Gottesglauben. Demographie: geboren im heutigen Deutschland; Bundesland des Geburtsorts; wenn nicht im heutigen Deutschland geboren: seit wann lebt der Befragte in Deutschland (Jahr); wo hat der Befragte während seiner Jugend vorwiegend gelebt; wenn Befragter während seiner Jugend in Deutschland gelebt hat: Bundesland; Staatsbürgerschaft; Bereitschaft in eines der neuen oder eines der alten Bundesländer zu ziehen; Bereitschaft in ein anderes EU-Land zu ziehen; Ortsverbundenheit; bisherige regionale Mobilität; Kontakt zu in Deutschland lebenden Ausländern; Kontakt zu Deutschen (wenn Befragter kein deutscher Staatsbürger); Einstellung zu Zuwanderung nach Deutschland (Zuwanderer derselben bzw. einer anderen Volksgruppe/ethnischen Gruppe und von Zuwanderern aus den ärmeren Ländern außerhalb Europas); Zuwanderung positiv für die Wirtschaft; Zuwanderung als Bereicherung kulturellen Lebens; Zuwanderung macht Deutschland zu einem besseren Ort; Einschätzung der Diskriminierung von bestimmten Gruppen in Deutschland (ethnische Herkunft, Geschlecht, sexuelle Orientierung (z.B. Schwul- oder Lesbischsein), Alter, Religion oder Glaubensbekenntnis, Behinderung). Selbsteinstufung der Sorgfältigkeit bei der Beantwortung des Fragebogens (nicht in Hauptstudie 1 gefragt); Beurteilung der Befragung (interessant, abwechslungsreich, wichtig für die Wissenschaft, lang, schwierig, zu persönlich); Unterbrechung der Befragung; persönliche Anmerkungen zur Befragung. Zusätzlich vercoded wurde: Höhe des Incentives für den Befragten.