Yes. According to the Bureau of Labor Statistics the median usual weekly earnings increase with increasing level of education, while the unemployment rate declines.
As the graph shows, unemployment rate for people with high school diploma is 1.8 times that of people with bachelor's degree. The median weekly earnings are double for bachelor degree holders compared to people with high school diploma.
This has been the trend consistently for many years.
An interactive version of the chart given above consistently shows unemployment rate for high school graduates roughly double that of college grads.
Is it worth it? That's more difficult to say. It depends on the type of school attended, the degree attained, and a number of other factors. We can do a quick back of the envelope calculation to get a feel of where the numbers stand:
Assuming the median college grand makes $500 more per week than a high school grad, that's ~ $25,000 per year.
According to this website
half of all full-time undergraduate students at public and private nonprofit four-year colleges attend institutions that charge tuition and fees of $11,814 or less
As per this chart, the average public 4 year college tuition for an in-state student is $9400 per year, for a total of ~ $40,000. Assuming you earn roughly $25,000 more per year, you get your investment back in under 2 years. Even for private college graduates who pay on average $32,400 per year, or roughly $130,000 total, it's still under 6 years to get your investment back.
I think it's pretty clear that, for the median college grad, the cost of college is well worth it considering that even someone who payed their way through a private college, without any financial help (grants, scholarships), can recoup their investment in mere 6 years and reap the benefits for another 35+ years.