I'm not sure why the WSJ found this newsworthy, but they sure made a big deal out of it:

In South Carolina, one in 25 workers is a temp, the highest share in the country. Other southern states have a relatively high portion of staffing-agency workers: Tennessee at 3.9%, Kentucky at 3.6% and Alabama at 3.5% in the third quarter of 2015, according to Labor Department data.

Manufacturing-heavy Illinois and Michigan are also among the top 10 states for temp workers.

Conversely, temps make up a smaller share of the workforce in less-populated states. Just 0.4% of all workers are temps in Alaska. And fewer than one in 100 workers are temps inSouth Dakota, Wyoming and Hawaii.