AU African Union Flag Set 55 Flags 3x5 FeetAfrican Union Member Countries Flag Set 3x5 Outdoor flags: 1 of each, 55 flags total. The AU is made up of 55 Member States which represent all the countries on the African continent. AU Member States are divided into five geographic regions. which were defined by the OAU in 1976 (CM Res. 464QCXVI). The following list shows all members states grouped by region, in alphabetical order, and their date of joining the AU or its predecessor the OAU. Central