Video from Lets Talk religion
"Are most Muslims Sunni or Shia?
Sunnis make up the larger population of Muslims. Approximately 87-90% of Muslims are Sunni while the remaining 10-13% are Shia.
Where are they concentrated?
Both Sunni and Shia Muslims live throughout the world. However, Sunnis are heavily populated in countries like Saudi Arabia, Turkey, Egypt, Indonesia. Shia Muslims make up a majority or significant population of countries like Iran, Iraq, Lebanon, and Syria.
What do they believe?
These differences stem from the extreme claims on both sides. Once this political difference took place, both Sunnis and Shias developed slight differences on larger theological issues. However, Sunni and Shia Muslims believe in the same Qur’an. They agree on the major elements of faith such as the belief in God, angels, Prophets, books, and the hereafter. Both groups share the main practices of Islam such as praying five times a day, fasting the month of Ramadan, performing hajj, and paying charity..." from the article: What is the difference between Sunni and Shia Islam?