Despite gradually declining in the US over the last 8 straight years of economic recovery from the Great Recession, the rate of involuntary part-time working remains stubbornly high in the State of Illinois. Over a quarter million workers were employed but working part-time for economic reasons in Illinois. Illinois ranks 10th among the 50 states in the number of involuntary part-time workers. Illinois’ rate of labor underutilization has one in ten workers either fully or partially unemployed, still well above the pre-recession rate and the US national average. Policies are needed to accelerate its return to prior levels.