Duncan has a population of 22,505 and is located in Stephens county.
There is one hvac college in Duncan for students to choose from. HVAC programs in Duncan reportedly graduated 4 students in the 2008 - 2009 school year.
|Profession||Average Salary||Number Employed in City|
|Heating, Air Conditioning, and Refrigeration Mechanics and Installers||$31,610.00||220|