From Post staff reportsWilson County’s unemployment rate for May dropped to 8.5 percent, a decrease of 0.6 percent from the April figure of 9.1.The Tennessee Department of Labor and Workforce Development released county jobless rates for May on Thursday.Wilson County had a labor force of 57,870 in May with 52,950 of those employed. That left 4,930 unemployed, the department said.Compared to May 2009, Wilson’s jobless rate was 9.2 percent, or 0.7 percent higher.Tennessee’s unemployment rate for May was 10.4 percent, down one-tenth of percentage point from the April rate of 10.5 percent.The national unemployment rate for May was 9.7 percent.County non-seasonally adjusted unemployment rates for May ’10 show that the rate decreased in 86 counties, increased in seven counties and remained the same in two counties.Lincoln County registered the state’s lowest county unemployment rate at 6.6 percent, down from 7.1 percent in April. Scott County had the state’s highest unemployment rate at 19.8 percent, down from 20.2 percent in April, followed by Marshall County at 16.7 percent, down from 17.3 percent in April.Wilson placed eighth in a list of the 10 lowest county unemployment rates for May.Knox County had the state’s lowest major metropolitan rate of 7.7 percent, down from 8.2 percent in April. Davidson County was 8.9 percent, unchanged from the April rate. Hamilton County was at 8.6 percent, down from 9.0 in April, and Shelby County was 10.0 percent, down from 10.2 in April.Nearby, Rutherford County’s jobless rate for May was 9.2 percent, down from 9.5 in April; Sumner County’s was 9.2 percent, down from 9.6 in April; Smith County’s was 10.5 percent, down from 12.3 in April; Trousdale County’s was 10.5 percent, down from 11.8 in April; and Williamson County’s rate was 7.6 percent, down from 8.1 in April.