What are the main denominations in the world practicing seventh-day Sabbatarianism? What percentage of Christendom do they represent? I would like to know if there are reputable sources presenting anything close to an exhaustive listing of the main denominations around the world adhering to seventh-day Sabbatarianism. Similarly, are there recent studies estimating the percentage of Christendom that practices seventh-day Sabbatarianism?
By far the largest seventh day sabbatarian churches are the Seventh Day Adventist church which has approximately 21 million members, and the Seventh Day Baptist churches with approximately 50,000 members worldwide.
This means they represent about 1% of Christians