The jobless rate for Twiggs County in December 2012 was 12.4 percent.
Twiggs County was one of 67 Georgia counties that had a jobless rate of 10 percent or greater.
The jobless rate in December 2012 was also up for metro Macon.
According to a state news release, unemployment rose to 9.2 percent from November's 8.7 percent rate, but it was down from December 2011 when the rate was 9.5 percent.
Officials claim the rise comes from a combination of factors, including a "slight increase" in new layoffs and a reduction in the area work force.
The uptick reflects a similar statewide trend. However, the jobless rate across Georgia only rose one-tenth of percentage point while metro Macon's rate jumped five-tenths of a percentage point.