Most People Happy at Work -- WebMD

“The most important factors contributing to more job satisfaction in descending order of importance are holding a job with high prestige, being older, being nonblack, and earning more from a job,” says researcher Tom W. Smith, director of the General Social Survey at the National Opinion Center at the University of Chicago, in a news release.

“Job satisfaction is especially high among those 65 and over because most people working at that age are not those forced to still work due to financial reasons, but those who choose to [do so] because they like their jobs.”