A new study finds that one in five jobs in Ohio pays less than a poverty level wage, about $18,000 for a family of four.

And the number of low-wage earners is increasing as Ohio continues to lose manufacturing jobs that are being replaced by low-paying jobs in the service sector.

The study was conducted by Community Research Partners, a Columbus-based nonprofit research organization with funding from the Annie E-Casey, Ford and Rockefeller Foundations.