Using data first published by the House of Representatives Committee on Foreign Affairs in 1965, one chart lists the membership of the communist party in communist countries (Albania, Bulgaria, China, Czechoslovakia, East Germany, Hungary, North Korea, Mongolia, Poland, Romania, USSR, North Vietnam, and Yugoslavia) and whether they affiliated with China or the USSR. A second chart lists estimated numbers of Communists in free countries around the world and shows whether the majority of Communist party members in each country sympathized with China or the Soviet Union. According to this data, the noncommunist country with the fewest Communist party members was Jordan, with 500 members, and the country with the greatest number of Communist party members was Indonesia, with 2 million members, followed up by Italy, with nearly a million and a half members.
"Communist Party Memberships and Positions in the Communist World,"
BYU Studies Quarterly: Vol. 7
, Article 8.
Available at: https://scholarsarchive.byu.edu/byusq/vol7/iss2/8