Persians are a branch of Iranian (Iranic) people; The following map shows regions that Iranic people reside (Including Azeri or Qashqai ethnic groups as Iranic is debatable here, but it was the map I just found on the web):. read more
According to the CIA World Factbook, Persians in Iran constitute up to 61% of the country's population. Another source, Library of Congress states Iran's Persians compose 65% of the country's population. However, other sources mention that Persians only comprise 50.5%, or 55.3%. read more