October 23, 2019 16:11 Updated Follow There are more than 450,000 total members in INPRS plans, including retirees. For more information, check our annual report. Related articles What does FSP stand for? Where can I find INPRS's CAFR? What is a Submission Unit and Submission Unit ID number? How do I contact INPRS? How many years of creditable service must I have in order for my spouse or child to receive a survivor benefit from PERF?