18. Diagnostic medical sonographers
They use special imaging equipment that directs sound waves into a patient’s body to assess and diagnose various medical conditions.
Median annual wage (2015): $68,970
Education required: Associate’s degree
Projected job openings (through 2024): 27,500
Work experience: None
On-the-job training: None
17. Postmasters and mail superintendents
Paul De Los Reyes/Flickr
They plan, direct, or coordinate operational, administrative, management, and supportive services of a US post office, or coordinate activities of workers engaged in postal and related work in an assigned post office.
Median annual wage (2015): $70,640
Education required: High-school diploma or equivalent
Projected job openings (through 2024): 3,800
Work experience: Less than five years
On-the-job training: Moderate-term on-the-job training