Employers added more than 1 million jobs from November through January, the best three-month pace since 1997.
And more than 3.2 million jobs have been created in the past year. That has helped lower the unemployment rate to 5.7 percent in January from 6.6 percent 12 months earlier.
The strong job gains are showing some signs of finally lifting paychecks for more workers. Average hourly pay rose 0.5 percent in January, the most in six years, the Labor Department said earlier this month. While economists cautioned against reading too much into one month's figure, it suggested employers may finally feel the need to raise wages to attract new workers and keep the ones they have.
Big companies like Aetna and the Gap have already raised wages. Last week, Wal-Mart, the world's largest retailer, said it would raise the base pay for its employees to $9 an hour later this year and $10 next February. Retailer TJX followed with its own pay hike announcement Wednesday.
Federal Reserve Chair Janet Yellen said Tuesday that there has been broad improvement in the job market since last summer. Yet she also noted that "wage growth remains sluggish," and the number of Americans either working or looking for work is low by historical standards. The Fed is closely watching the jobs data as it considers when to begin raising short-term interest rates.
"Considerable progress has been achieved in the recovery of the labor market, though room for further improvement remains," Yellen said in testimony before a Congressional panel.