ATLANTA — Georgia Labor Commissioner Mark Butler says the preliminary unadjusted unemployment rate in metro Atlanta increased to 10.4 percent in January, up three-tenths of a percentage point from a revised 10.1 percent in December.

The rate matches the figure for the entire state.

The jobless rate in metro Atlanta in January 2010 was 10.7 percent.

Butler said Thursday the rate increased because of layoffs in manufacturing, construction and administrative and support services.

Unemployment rates increased in all areas of the state in January except Warner Robins, where the rate remained steady. Of the 25 local areas, metro Warner Robins had the lowest January jobless rate at 7.8 percent, while the highest was in metro Dalton at 13 percent.

Columbus had a rate of 9.8 percent, Athens 8 percent, Macon 10.5 percent and Augusta 9 percent.