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Unemployment rates in parts of the Bay Area saw increases in January while the statewide rate went unchanged for the month, according to employment data released Friday.

The California unemployment rate remained unchanged from December at 9.8 percent. A year ago at this time, the jobless rate was at 11 percent, according to the California Employment Development Department.

In the Bay Area, the highest jobless rate was in Solano County at 10 percent in January. Contra Costa County had an 8.6 percent unemployment rate, up 0.4 percent from December 2012.

Danville's unemployment rate rose 0.2 percent to 4.5 percent; Diablo rose 0.4 percent to 4.7. San Ramon's unemployment rate, which stood at 3.3 percent in December 2012, was 3.6 percent in January.

Other counties saw unemployment rates rise, including San Francisco where December's 6.5 percent rate bumped up to 6.8 percent in January.

The lowest unemployment rates in the Bay Area and state remain in Marin County at 5.8 percent. However, that rate increased slightly from 5.5 percent in December.

Nationwide, the unemployment rate in January was 7.9 percent.

Jessica Lipsky contributed to this article

— Bay City News Service

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