Religious Adherents, 2010 (World Christian Database)1
The country has an area of 35,919 square miles and a population of 10.1 million.
Data on religious affiliation is regarded as sensitive information and may not be officially recorded. However, the 2001 national census, the latest survey available, included an optional question on religious affiliation, to which 90 percent of the population provided a response. According to the replies, the population is 55 percent Roman Catholic, 15 percent Reformed, 3 percent Lutheran, and less than 1 percent Jewish. These four are the country's "historical" religious groups. In addition, 3 percent of respondents identified themselves as Greek Catholics, and 15 percent declared no religious affiliation. Groups that constitute less than 5 percent of the population include the Congregation of Faith, a broad range of other Christian groups, five Orthodox religious groups, seven Buddhist groups, and three Islamic communities.
Data protection regulations impeded the collection of official statistics on popular participation in religious life; however, surveys suggest that citizens were less devout than the average central European. According to a 2004 survey by the Economic Research Institute of Hungary, 58 percent of respondents declared themselves to be "believers," and 55 percent responded that they believe in "God or the supernatural." Fifteen percent of believers declared that they attended religious services at least once a week, and 25 percent stated that they never did.
Note: The World Christian Database (WCD) estimates, used in the Religious Adherents section above, count each person as belonging to a maximum of one religious group. For more information, see the WCD methodology document. The U.S. State Department's International Religious Freedom report estimates, used in the Religious Demography section, use less restrictive criteria in which a person who identifies with more than one religion is classified as a follower of each. In certain cases (such as Japan and other nations with strong folk religion traditions), this can cause counts to vary widely between estimates. Users are advised to consult the relevant source documents before determining which counts to cite.
1. The World Christian Database (WCD) is based on the 2600-page award-winning World Christian Encyclopedia and World Christian Trends, first published in 1982 and revised in 2001. This extensive work on World religion is now completely updated and integrated into the WCD online database. Designed for both the casual user and research scholar, information is readily available on religious activities, growth rates, religious literature, worker activity, and demographic statistics. Additional secular data is incorporated on population, health, education, and communications. A dataset with these and the other international measures highlighted on the country pages can be downloaded from this website. Used with permission.
2. The U.S. State Department's International Religious Freedom Report is submitted to Congress annually by the Department of State in compliance with Section 102(b) of the International Religious Freedom Act (IRFA) of 1998. This report supplements the most recent Human Rights Reports by providing additional detailed information with respect to matters involving international religious freedom. It includes individual country chapters on the status of religious freedom worldwide. A dataset with these and the other international measures highlighted on the country pages can be downloaded from this website. These State Department reports are open source.