The U.S. economy added a robust 312,000 jobs in December, well above expectations, as the labor market continues to expand even as worries grow about an economic slowdown and turbulent stock markets.
The unemployment rate ticked up to 3.9 percent from 3.7 percent as the labor force expanded by 419,000, the Labor Department reported on Friday.
Economists had expected about 182,000 jobs to be added last month.
The labor force participation rate rose to 63.1 percent in December, the highest it has been since early 2014, from 62.9 percent in November.