Unemployment rates across much of Southern Middle Tennessee jumped by around a full percentage point in January compared to December. The Coffee County jobless rate rose from 5.7 percent to 6.7 percent in January. Franklin County’s rate also up by a full point to 6.4 percent. The unemployment rate in Grundy County for January was 10 percent, up from 9.1 percent. The Department of Labor and Workforce Development says the unemployment spike resulted from the loss of Holiday jobs and temporary factory layoffs. Area jobless rates in January still remained below 2014 levels. Williamson County enjoyed the lowest rate in January of 4.8 percent. Scott County in rural East Tennessee had the highest at 12.3 percent.