Of that amount, $3,121,794 was in state pension funds, and the remaining $376,746 was in local government pension funds.
The survey includes public pensions sponsored by local and state government entities with employees who are compensated with public funds. The local governments include counties, townships, school districts and special districts.
The data gathered includes revenues, expenditures, financial assets, membership and liabilities information.
Residents in Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington and Wyoming do not pay state income taxes.
The Census Bureau cautions that not all respondents answer all survey questions. Thus, some fields were left blank.
Arizona reported data from 78 pension systems, including 4 state-level pension funds and 74 local-level systems. The total number of pension system members was 500,555 (487,375 at the state level and 13,180 at the local level).