This depends entirely on how the term Christian is defined and also what figures are used. Some would say the USA, others the People's Republic of China, which despite official persecution, has a thriving house church movement numbering over 60 million persons and growing rapidly.
Christianity is the official religion in the most countries of the world, it is the majority religion of the world and is in the majority in a huge number of countries worldwide. 1. In the Western World (US, Canada, Europe, Australia and so on) Christianity is by far the majority religion. There are some representatives of other religions (eg Islam, Hinduism) usually brought in by immigration, but Christianity is the predominant religion by far. 2. In Central and South America Christianity is present almost to the exclusion of other religions - especially the Christian denomination Roman Catholicism which is spread over all of the continent. 3. Whilst some African nations (such as those in the north of Africa, plus a few others)are islamic) in most African nations, Christianity is the predominant religion and many denominations are represented including Roman Catholicism, Anglicans, Methodists, Baptists and Pentecostalism. 4. In Asia there tends to be a mixture of religion of predominantly Christianity (the Orthodox Church) in Russia and some of its former states (such as Armenia) with some other countries having a mixture (eg India which has Christianity, Hinduism, Buddhism and Islam) and others being predominantly other religions (eg Pakistan - Islam, Tibet - Buddhism, Japan, Shintoism and so on). However, whilst the Christian Church is not yet in the majority, in China and South Korea Christian Church growth has been astronomical. In China, for example, it was estimated that at the end of the 'Cultural Revolution' of the 1960s, there were fewer than 5000 Christians estimated in the country - all of which compulsorily met in secret for fear of persecution. By the end of the twentieth century it was estimated that Christianity had grown astronomically to over 50 million people claiming to be Christian as religions laws were relaxed. If growth continues in this exponential way both in China and South Korea, Christianity will be in the majority there too within the next decade.
In terms of percentage, the independent sovereign state of the Vatican City officially has 100% Christian population.
Of the other countries Ecuador has officially a 99% Christian population.
By comparison the USA is 78.% and the UK 71.8%
The United States of America. However, Brazil could be a strong contender. A lot has to do with definitions.
Brazil--from www.aneki.com.
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Countries of Lebanon and Syria have Drusie, Christians, and majority Muslims.
Christianity is the largest, worldwide religion with over 2.1 billion adherents. The majority of Christians are in North America, South American, Africa, Europe and other English-speaking countries.
in china
There are Christians living there, but they are not the majority.
The religion is technically still considered to be Christianity. However the vast majority of the "christians" are not christians at all, but live hypocritical lives pretending to be them. Along with this, the numbers of the Islamic nation in these countries as well as all over the world are increasing rapidly. People estimate that before long, Islam could easily become the majority religion of the world.
Egypt. It's estimated Christian population is 7,892,000, making the country 10% Christian.
No as in Israel most are Jews.
About 50 countries have a muslim majority population
The majority of people who refer to themselves as "Jewish Christians" have zero Jewish heritage, they are mainly Christians.
The majority of European people are Christians of various denominations.
In the Western Hemisphere, Christianity is in the majority, while in the Eastern Hemisphere it is in the minority.
Generally speaking, only some older people and some conservative Christians feel that being gay is a choice. Also that majority of Muslim countries teach that it is a choice.The majority of people in western countries have now come to realize that sexual orientation is innate.