Once you have earned a certification in medical billing and coding, you have the ability to find a good job in many different parts of the country. Some markets pay more than others. Some markets have a high cost of living while others do not. Knowing what you can expect to earn in this field (in any given zip code) can really help you decide where you want to go to ply your new trade. To determine how much you could earn in any town in the USA, I recommend the salary wizard at www.salary.com where you enter in your job title and zip code where you’d like to work to find out what the earning potential is there.