Around 15-19 million active state and local government workers participate in government-funded pension plans, with a high participation rate (over 90% for public sector vs. private) in defined benefit plans (DB), though private sector leans towards defined contribution (DC) plans like 401(k)s. In 2024, roughly 15.3 million active members were in U.S. state and local plans, covering a significant majority of public employees, alongside millions of federal workers in their own systems, totaling tens of millions of beneficiaries.