Older adults are at a higher risk of being diagnosed with long-term conditions than those in other age groups. The aim of this study was to examine long-term conditions associated with, and predictive of, primary health care (PHC) service use among older adults living in the Irbid Governorate of Jordan over the previous one, six and 12 months. Cross-sectional data were collected from 190 adults aged 60 years and above. Face-to-face interviews were conducted within the catchment areas associated with three comprehensive healthcare centres. Results show that rates of PHC service use among older adults with long-term conditions are high, with heart conditions, diabetes and hypertension the most consistent predictors of service use.