This article lists the chapters of Phi Delta Theta. Chapters are listed with their installation date, university and status. The information was gathered from a mixture of The Scroll, The Chapter lists, and the locate chapter.
Chapter designation is determined by the order in which each chapter was awarded its charter in the state or province in which it is located (i.e. the first chapter established in a state/province is designated "Alpha", the second is "Beta", the third "Gamma", and so on). Exceptions to this rule have occurred when two universities, each with their own chapter, merge, causing the chapters to also merge. This results in the hyphened name of the two chapters that make up the new one (see Illinois Delta-Zeta).
To assist with the administration of the many chapters, several chapters are grouped together in a province. Each province has a President, who acts as a connection point between the Undergraduate chapters and headquarters. Provinces have Greek letters for their names, when a province gets too large, it is split and each new province keeps its Greek letter while also adding a direction.