| 401(k) Contribution Statistics | Data |
| Total value of assets held in 401(k) plans | $4.5 Trillion |
| Percent of all retirement assets held in 401(k) plans | 18 % |
| Total number of 401(k) participants | 52,500,000 |
| Total number of 401(k) plans | 515,000 |
| Percent of full time workers who have employee-sponsored 401(k) plan | 78 % |
| Percent of workers who who participate in their available 401(k) plan | 81.5 % |
| Average percent of salary contributed to a 401(k) | 6.8 % |
| Percent of 401(k) plan assets held in mutual funds | 64 % |
| Industries that match the highest percent of 401(k) contributions | Percent Match |
| Credit intermediation firms | 5 % |
| Protective service workers | 5 % |
| Managers | 4 % |
| West coast employees | 4 % |
| Insurance carriers | 3.9 % |
| Trade, transportation, and utilities workers | 3.5 % |
| Companies with 500+ employees | 3.5 % |
| Average employer 401(k) matching | 3 % |
| Average 401(k) Account Balance by Age |