Butler County's unemployment rate slightly increased in December, according to new jobs data.

New unemployment estimates from the Pennsylvania Department of Labor and Industry's Center for Workforce Information and Analysis show a slight uptick in unemployment in Butler County, but the county still had the lowest rate of any surrounding counties and any county in Pittsburgh's metropolitan statistical area.

The county had a 4 percent unemployment rate in December, up slightly from November's 0.2 percent increase. In December 2017, Butler County's unemployment rate was 4.6 percent, according to past estimates.

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