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.

This statistic shows the share of world Christian population by selected countries worldwide in 2010. 11.3 percent of all Christians worldwide were living in the United States in 2010.

Poland: Christians as percent of the total population: The latest value from 2013 is 98.5 percent, an increase from 98.3 percent in 2012. In comparison, the world average is 51.1 percent, based on data from 145 countries. Historically, the average for Poland from 1960 to 2013 is 94.3 percent. The minimum value, 89.9 percent, was reached in 1960 while the maximum of 98.5 percent was recorded in 2013.

Christianity was the largest religion in a high number of the countries included in the survey. Of the countries, Peru, South Africa, and Poland had the highest share of Christians at around 75 percent. Moreover, around 90 percent in India and Thailand stated that they believed in another religion, with Hinduism and Buddhism being the major religion in the two countries respectively. Sweden and South Korea were the only two countries where 50 percent or more of the respondents stated that they did not have any religious beliefs.

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 Regional Religion Dataset: The unit of analysis is the region, measured at five-year intervals. The Correlates of War regional breakdown is used with one modification: the Oceania category is added for Correlates of War nation numbers 900 and above.

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.

Germany: Christians as percent of the total population: The latest value from 2013 is 71.4 percent, a decline from 71.8 percent in 2012. In comparison, the world average is 51.1 percent, based on data from 145 countries. Historically, the average for Germany from 1960 to 2013 is 83.1 percent. The minimum value, 71.4 percent, was reached in 2013 while the maximum of 95.1 percent was recorded in 1960.

This dataset describes the world’s religious makeup in 2020 and 2010. We focus on seven categories: Christians, Muslims, Hindus, Buddhists, Jews, people who belong to other religions, and those who are religiously unaffiliated. This analysis is based on more than 2,700 sources of data, including national censuses, large-scale demographic surveys, general population surveys and population registers. For more information about this data, see the associated Pew Research Center report "How the Global Religious Landscape Changed From 2010 to 2020."

Christianity is the major religion in numerous African countries. As of 2024, around 96 percent of the population of Zambia was Christian, representing the highest percentage on the continent. Seychelles and Rwanda followed with roughly 95 percent and 94 percent of the population being Christian, respectively. While these countries present the highest percentages, Christianity was also prevalent in many other African nations. For instance, in South Africa, Christianity was the religion of nearly 85 percent of the people, while the share corresponded to 71 percent in Ghana. Religious variations across Africa Christianity and Islam are the most practiced religions in Africa. Christian adherents are prevalent below the Sahara, while North Africa is predominantly Muslim. In 2020, Christians accounted for around 60 percent of the Sub-Saharan African population, followed by Muslims with a share of roughly 30 percent. In absolute terms, there were approximately 650 million Christians in the region, a number forecast to increase to over one billion by 2050. In contrast, Islam is most prevalent in North Africa, being the religion of over 90 percent of the population in Algeria, Morocco, Tunisia, and Libya. Christianity in the world As opposed to other religions, Christianity is widely spread across continents worldwide. In fact, Sub-Saharan Africa, Latin America and the Caribbean, and Europe each account for around 25 percent of the global Christian population. By comparison, Asia-Pacific and North America make up 13 percent and 12 percent of Christians worldwide, respectively. In several regions, Christians also suffer persecution on religious grounds. Somalia and Libya presented the most critical situation in Africa in 2021, reporting the strongest suppression of Christians worldwide just after North Korea and Afghanistan.

The USA: Christians as percent of the total population: The latest value from 2013 is 76 percent, a decline from 76.3 percent in 2012. In comparison, the world average is 51.1 percent, based on data from 145 countries. Historically, the average for the USA from 1960 to 2013 is 82.8 percent. The minimum value, 76 percent, was reached in 2013 while the maximum of 89.6 percent was recorded in 1960.

Belarus: Christians as percent of the total population: The latest value from 2013 is 94 percent, a decline from 94.2 percent in 2012. In comparison, the world average is 51.1 percent, based on data from 145 countries. Historically, the average for Belarus from 1991 to 2013 is 96.1 percent. The minimum value, 94 percent, was reached in 2013 while the maximum of 98.6 percent was recorded in 1991.

This statistic shows the top 25 countries in the world with the largest number of Christian population in 2010. In 2010, the United States was leading the ranking with about 243 million Christians living in the country.

Financial overview and grant giving statistics of Christians for World Peace

The average for 2013 based on 25 countries was 74.6 percent. The highest value was in Romania: 98.8 percent and the lowest value was in Belgium: 0.1 percent. The indicator is available from 1960 to 2013. Below is a chart for all countries where data are available.

Spain: Christians as percent of the total population: The latest value from 2013 is 88.8 percent, a decline from 89.3 percent in 2012. In comparison, the world average is 51.1 percent, based on data from 145 countries. Historically, the average for Spain from 1960 to 2013 is 95.9 percent. The minimum value, 88.8 percent, was reached in 2013 while the maximum of 98.9 percent was recorded in 1960.

Census: Population: by Religion: Christian: Haryana data was reported at 50,353.000 Person in 03-01-2011. This records an increase from the previous number of 27,185.000 Person for 03-01-2001. Census: Population: by Religion: Christian: Haryana data is updated decadal, averaging 38,769.000 Person from Mar 2001 (Median) to 03-01-2011, with 2 observations. The data reached an all-time high of 50,353.000 Person in 03-01-2011 and a record low of 27,185.000 Person in 03-01-2001. Census: Population: by Religion: Christian: Haryana 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.GAE004: Census: Population: by Religion: Christian.

Religious beliefs and moral attitudes.

Thopics: perceived change in violence on the streets, bribery, adultery and tax evasion during the last 10 years; justifyability of tax evasion (scale); justifyability of death penality; attitude towards: homosexual adoption, right to commit suicide, men more right for job than women; attitudes towards abortion in different circumstances (scale);
individual or public responsability for pensions; cuts in unemployment benefits; smoking ni public buildings; goals in education of children: indepdendence, obedience, creativity; attitudes towards income differeces; attitudes towards homeless people in neighbourhood; acceptance of nepotism (Kohlberg); Criteria for selecting patients for important surgery in hospitals; attitudes towards euthanasia; rules about good and bad; source of morality (scale); control over life; solving problems: individual vs. society; social orientation; volunteering: religious organizations, non-religious organizations; geographical mobility; residence of best friend; nationality of respondent; nationality of mother; nationality of father; attitudes towards migrants (ethnocentrism); political interest; party preference; least preferred party; reception of political news; concept of god; beliefs about life after death; salvation; conditions of salvation; theodizee (scale); respondent´s religiosity (self-assessment); beliefs influence daily life; beliefs influence important decisions; spiritual life; church attendance; frequency of praying; religious services: birth, marriage, death; conceptions of jesus; conceptions of the bible; dramatic change around millennium; denominational membership; closeness to church; women as priests; conversion experience; church attendance at age 12; transcendental experiences; possession of holy object; power of holy obejct; possession of talisman or lucky charm; power of talisman or lucky charm; consult horoscope; take horoscope into account in daily life; share of friends with different religion; perceived percentage of religious people in country; role of religion in world; attitudes towards: girls cover heads, take soft drugs, prevent blood transfusion, commit suicide; attitudes towards religious groups (enrichement, cause of conflict, other religious teachings, Jehovas witness, scientologist); truth in religion; religious symbols in schools; financial support: religious schools, religions; attitudes towards: oath with reference to God; consult religions in making laws, nurse may refuse legal abortion; attitutes towards science; desired influence of churches on politics; perceived influence of churches on politics;

Demographics: gender; age (year of birth); highest level of education; emloyment status; status of unpaid work; secondary job; marital status; steady life partner; partner´s highest level of education; partner´s religion; partner´s church attendance; number of children; household (number of children +18; 13-17; 5-12; less than 4); net household income; acceptance of cut in income for solidarity with poorest countries; community size; national ranking of community size; history of church membership;

Additionally coded: length of interview; year of interview.

Optional questions (not asked in all countries): importance of freedom; importance of equality; God concerned with every individual; God is valuable in humankind; life has meaning because of a God; sorrows have meaning if beliefs in a God; sorrows receive meaning from yourself; death is natural resting point; death is passage to another life; life has meaning if yourself give meaning; Virgin Mary was taken to heaven; believe in saints; father´s religion at age 12; father attend religious services at age 12; mothers´s religion at age 12; mother attend religious services at age 12; education in religious schools; profession (ISCO); partner´s profession (ISCO), community size (not grouped); pope hinders unity of Christians; religious services: sober; religious services: music and ceremonial clothes; pope should adapt his message; laity involvement; meaning of Christmas; month of interview; father´s highest level of education; mother´s level of education; number of household members

Additional questions in the BELGIAN questionnaire (only substantial questions. No country specific versions of questions from the masterquestionnaire): meaning of marriage in church; homosexuals may marry; light candle when enter church; water from Lourdes at home; pilgrimage; ...

Croatia: Christians as percent of the total population: The latest value from 2013 is 95.8 percent, an increase from 95.5 percent in 2012. In comparison, the world average is 51.1 percent, based on data from 145 countries. Historically, the average for Croatia from 1991 to 2013 is 92.1 percent. The minimum value, 87.7 percent, was reached in 1991 while the maximum of 95.8 percent was recorded in 2013.

Census: Population: by Religion: Christian: Himachal Pradesh data was reported at 12,646.000 Person in 03-01-2011. This records an increase from the previous number of 7,687.000 Person for 03-01-2001. Census: Population: by Religion: Christian: Himachal Pradesh data is updated decadal, averaging 10,166.500 Person from Mar 2001 (Median) to 03-01-2011, with 2 observations. The data reached an all-time high of 12,646.000 Person in 03-01-2011 and a record low of 7,687.000 Person in 03-01-2001. Census: Population: by Religion: Christian: Himachal Pradesh 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.GAE004: Census: Population: by Religion: Christian.

Census: Population: by Religion: Christian: Tripura data was reported at 159,882.000 Person in 03-01-2011. This records an increase from the previous number of 102,489.000 Person for 03-01-2001. Census: Population: by Religion: Christian: Tripura data is updated decadal, averaging 131,185.500 Person from Mar 2001 (Median) to 03-01-2011, with 2 observations. The data reached an all-time high of 159,882.000 Person in 03-01-2011 and a record low of 102,489.000 Person in 03-01-2001. Census: Population: by Religion: Christian: Tripura 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.GAE004: Census: Population: by Religion: Christian.