American companies kicked off the summer with modest growth in hiring, sending nonfarm payrolls up 223,000 in June, according to Labor Department numbers released Thursday.

In addition to the payroll growth, the unemployment rate ticked lower to 5.3 percent from 5.5 percent, due largely to a sharp decline in labor force participation, which fell from 62.9 percent to 62.6 percent, its lowest level since October 1977. A broader measure that includes those who have stopped looking for work or working parttime for economic reasons slipped as well, from 10.8 percent to 10.5 percent.

Economists polled by Reuters had expected the number of new jobs to total 230,000 in June, with the unemployment rate at 5.4 percent.

"People had expected a stronger report after the very strong report in May. Instead what we're seeing is still just grinding higher," said Kate Warne, investment strategist at Edward Jones. "It's strong enough to support stock prices, it's strong enough for the Fed to say they're considering raising interest rates in the fall, and that's where we stay."

The biggest job gains came in professional and business services (64,000), Health care (40,000) and retail (33,000). Bars and restaurants also added 30,000 new positions. Mining lost 4,000 jobs, bringing the total decline in the industry to 70,000 since the most recent peak in December.

Previous months' job totals were revised lower by 60,000, with April falling from 221,000 to 187,000 and May declining from 280,000 to 254,000.