PMLive Healthy Union SC . (864) 426-2635.Cultivating a culture of health for a healthy and thriving Union County, SC.Moving Toward a Healthier Union County.Based on the 2019 County Health Rankings, Union County is ranked 31st out of 46 counties in South Carolina for health outcomes, which measures length and quality of life, and is ranked 29th for health factors, which measures healthbehaviors, clinical care, social and economic factors, and physical environment.