"What is striking about the findings is that the strength of a country's labor market doesn't necessarily correlate with workforce contentment," said Chris Moessner, vice president for public affairs, GfK. "While workers in challenged markets may have had fewer opportunities to advance in terms of promotions or salary during the recent downturn, it has not necessarily affected their happiness," he added.
The survey also delved into possible links between monetary compensation and job satisfaction and found that U.S. workers with the lowest salary were the most likely to be unhappy at work. More than one in five paid less than $50,000 per annum said they either disliked or hated their jobs.
"Regardless of what a worker's priorities are – being challenged, feeling valued or even making more money – it's important for anyone who is not in love with their jobs to remain vigilant about finding [a] better [job]," said Joanie Ruge, employment industry advisor and senior vice president of Monster.
(Read more: Just 14% of global firms to hire in 2014: Survey)
From a regional perspective, workers in the Northeast of the U.S. are most satisfied with their jobs, with 60 percent saying they liked or loved their jobs. Only 48 percent in the Mid-West and 45 percent in the South said the same.
On average, U.S. workers have longer working weeks and a smaller allotment of vacation time compared with other countries worldwide.
According to economic research website FRED, the average employee in America works around 1,700 hours per year, while the average employee in France worked around 1,480. Workers in Asia work much longer hours, with Singaporeans putting in a whopping 2,300 hours a year.
—By CNBC's Katie Holliday: Follow her on Twitter