The jobless rate in Butler County in September remained at 5.3 percent, the lowest in the nine-county region. The county with the most improvement during the month was Clarion County, which dropped from 7.0 percent to 6.6 percent. Four counties had decreased unemployment rates, three remained the same and two increased. Butler County in September had 5,300 unemployed, from a labor force of 98,800. The larger numbers on the map are the rates for September, while the smaller numbers are the rates from August.