If you set aside millions for retirement, you’ll be far above average in terms of wealth compared to many Americans. The average 401(k) balance in the second quarter of 2023 was $112,400, according to Fidelity Investments. That said, savings rates are going up: The average balance has increased 8% from five years ago and nearly 40% from 10 years ago. The number of retirement millionaires is rising, too. According to Fidelity, there were 378,000 millionaires holding a 401(k) account in the second quarter of 2023, compared with 340,000 in the year's first quarter, representing a 10% increase. Among those with individual retirement accounts, the number of millionaires in the first quarter of 2023 was 307,623, and in the second quarter, it was 349,104, indicating a 13% increase.If you have a ...