How Much Money Can I Make from programming?

I’ve never worked with a programmer, except one who worked for a non-profit, who made less than $40,000 per year. That is straight out of college, entry level corporate development.
The majority of entry-level coders I’ve worked with have made $50-$55k. Mid-level developers make $65k-$90k, and senior developers make $85k-$150k (and even more if their knowledge is highly specialized).
If you become a freelance developer you will make $50-60/hour as a mid-level freelancer, $60- $80/hour as a senior developer, and $80-150/hour as an expert in your field (i.e., you have a well-respected blog, publish articles, or have some other specialized niche).
 These are ballpark ranges based on my experience, and based on corporate development salaries in larger tech centers (San Francisco, Los Angeles, Seattle, New York, and Boston). For ranges for your area, visit Salary.com and enter “Programmer” and your zip code in the Salary Wizard, or search on Dice for your zip code and look at the open job listings.