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Nearly one in 20 U.S. workers hold more than one job, but in Colorado, closer to one in 16 do, according to .
Workers hold multiple jobs for a variety of reason, including stringing together two part-time jobs to make up for not having a full-time position or because they need more income to cover higher living costs.
But many of the states with the highest share of workers holding multiple jobs also have very low unemployment rates, which suggests workers might be taking advantage of tight labor markets.
South Dakota leads the nation with 8.7 percent of workers holding multiple jobs, while in Nebraska it is 8.4 percent. Other states where moonlighting is most common include Iowa, Montana, North Dakota and Minnesota.
Conversely, workers in Florida, Arkansas, South Carolina, Georgia and Texas are among the least likely to moonlight.
About 4.9 percent of U.S. workers held a second job in 2014, while in Colorado 6.3 percent did, up from 6.2 percent in 2013.
Nationally, it appears that moonlighting . Rates have continued to move lower since then.
White-collar workers, in particular teachers, are more likely to hold a second job while those in physically demanding fields are less likely to do so.
