Marin County’s unemployment rate was 1.9% in December 2019, making Marin the county with the second-lowest rate in the state, the state Employment Development Department reported Friday.

Marin’s jobless rate was down from a revised 2% in December, and below the year-ago estimate of 2.2%. San Mateo had the lowest rate in the state in December with a 1.8% rate.

Mill Valley had a 1% unemployment rate, the lowest in Marin. Other rates in Marin included Fairfax, 1.4%; Sausalito, 1.8%; Larkspur, 1.8%; San Rafael, 1.8%; Corte Madera, 2%; Novato, 2% and San Anselmo, 2.2%.

The state unemployment rate in December was 3.7%; it was 3.4% for the nation.

The Bay Area job market wound up being considerably stronger in 2019 than in 2018.

Employers in the Bay Area added 91,500 jobs during 2019, which was 2.3 percent more than the jobs the 80,500 jobs the region added in 2018, the EDD report showed.

Yet despite the improvement for the entire year, some indicators have begun to sprout that suggest the employment gains in the Bay Area became less robust as 2019 wore on.

Over the first six months of 2019, the Bay Area added 66,700 jobs. But over the final six months of 2019, Bay Area job gains totaled 24,800.

“There are warning signs for Bay Area employment trends,” said Stephen Levy, director of the Palo Alto-based Center for Continuing Study of the California Economy. “We are seeing slowing population growth, which is a warning sign. Unless more people move here, employers face hiring challenges.”

The tech industry in the Bay Area and California is providing plenty of fuel for the regional and statewide economies, according to economist Sung Won Sohn.

“Technology has healthy upward momentum,” Sohn stated on Friday in his analysis of the statewide job picture. “Professional and business services, which includes scientific and technical services such as software engineers, system analysts, and scientific research and development, remains a workhorse in the state’s economy.”

Bay Area News Group contributed to this report.