Hello.
According to a survey in 2007 it was found that the average monthly salary  of an individual in United state is $ 3,714 . and if you are searching for highest paying job in US  then the list of 25 highest paying job in US  is given below:

• Physician.
  
• Pharmacy  manager.
  
• Pharmacist.
  
• Enterprise architect.
  
• Corporate counsel.
  
• Software  development manager.
  
• Physician assistant.
  
• Software engineer manager.
  
• Nurse practitioner.
  
• Software architect.
  
• Engineering  manager.
  
• Applications development manager.
  
• Plant  manager.
  
• IT program manager.
  
• Solutions architect.
  
• Financial  planning and analysis manager.
  
• Data architect.
  
• Strategy manager.
  
• System architect.
  
• Scrum master.
  
• Consulting manager.
  
• Attorney.
  
• Cloud  engineer.
  
• Tax manager
  
• Data  scientist.
  

The above list is on the basis of the annual salary where the highest paying median salary is of the physician which is $195,842 /year , remember this evidence is on the basis of the survey which was done in 2018 , salary amount may change after latest survey.
Best of luck.