Arizona’s unemployment rate remains at 4.9 percent, while the national average is 3.8 percent, its lowest since 2000. State officials say our population growth could be behind the stagnation.

Employers added 223,000 jobs in May, according to the U.S. Bureau of Labor Statistics. Retail, health care, transportation and construction in particular have seen good growth over past couple months, it said.

Average hourly earnings, meanwhile, rose slightly in May. Wages have gained 2.7 percent in the past 12 months.

Danny Wilson of the Arizona Office of Economic Opportunity said the stagnant jobs rate is nothing to worry about. There are several factors involved in these calculations, he said, and the state is in solid shape for economic growth.

Maricopa County reflects the national average at 3.8 percent, while Yavapai, Greenlee and Pima counties are at 4 percent or a bit more.

The construction industry added 12,600 jobs since last year, while the education and health care industry added 14,400 jobs in the same time frame, according to the bureau.

“Arizona’s population growth has been consistently high,” Wilson said, “and when you have a population that’s growing, it fuels the need for additional services, creating the need for additional jobs.”

This population increase creates the stagnation that Arizona is experiencing: Unemployment numbers have hovered around 4.7 to 4.9 percent for the past six months.

The most important number in calculating the unemployment rate is the labor participation rate, Wilson said.

To be counted as part of the labor force, a person has to be employed or actively searching for a job. Increases in population and job demand could be encouraging people who were not previously part of the labor force to actively search for work, Wilson said.

“Whenever you see this kind of increase in population and an increase in demand for jobs, you begin to see a kind of cycle that consistently balances itself out,” he added.