IIPA was established a Registered Society under Societies Registration Act 1860. As such, the founding fathers of the Institute envisaged the membership of IIPA which should be in line with the vision and mission of IIPA i.e. creating the awareness about Public Administration and Governance by disseminating the knowledge in these areas through journals like IJPA, other publications, Research and Capacity Building through Training.
As such, the serving and retired Civil Servants, Academicians and others from the Civil Society organizations in these fields were invited to join IIPA as members. Some of the eminent names associated with IIPA as members had been the first Prime Minister of India Pt. Jawaharlal Nehru, Shri V.T. Krishnamachari, Shri C.D. Deshmukh, Dr. B.C. Roy, Dr. K.N. Katju, Shri U.N. Dhebar, Pt. H.N. Kunzru, Shri Gurmukh Nihal Singh, Shri S.B. Bapat and so on.
Over the years, many more such names joined IIPA as Members and currently IIPA membership stands at about 10900. Apart from Life/Annual Membership (closed presently), there are other categories like Associate, Student and Corporate membership also where the members avails of the academic facilities of IIPA to further their interest and career in the areas of Public Administration and Governance.