It just means he makes over $100,000.00 per year. Where I live, that's a lot of money. If you live in San Francisco? You are barely getting by.
six figures means 100,000 - 999,999. There are six digits in these numbers. He's probably saying he makes in excess of $100,000 per year.
6 figures is $100,000 plus. Each number is a "figure."
Six figures is 100,000 and up. Five figures would be 10,000 and up to 99,999
That's alot
$100,000 or more a year. It's very good money. Not "rich" though
it means he makes at least $100,000 per year and yes that is a decent salary
