The 13 lowest-paying jobs where people work over 40 hours a week

If you're a workaholic, odds are you can't help but put in more hours than most.

With some jobs, there's a lot of payoff for this. For others, not so much.

To find jobs with the least payoff for working a lot, we analyzed US Census data for about 478 occupations from the Minnesota Population Center's 2014 American Community Survey Integrated Public Use Microdata Series.

Based on that survey data, the average American works close to 40 hours a week and has a total income - a combination of salary, business, and any other form of money earned in a year - of about $50,569.

While some may work more or less than the average depending on their employer or where they are in their career, people with the following professions report typically working an average of more than 40 hours a week and earning less than $33,000 a year, on average: