Ohio has a shortage of plumbers. The job has an average salary of nearly $60,000—20% more than the typical worker makes in the Buckeye State. Some Ohio plumbers make six figures, which goes pretty far in a state where the cost of living is among the lowest in the nation. It covers the roughly 650 Ohio professions—accounting for roughly 1 in 5 jobs—that require workers to obtain an occupational license. Acquiring these government permission slips typically involves some combination of education and training, and would-be license holders must almost always pay the state for the privilege of working.

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