The study investigated on demographic determinants of executive manager stress in Rivers State. This study was guided by three research questions and three corresponding null hypotheses. The demographic factors investigated included gender, age and educational qualification. The descriptive survey research design was adopted with a sample of 400 administrators drawn from the entire population of administrators in Rivers State. Data for the study was obtained using a 20 item researcher-developed instrument which was adequately assessed for validity and reliability before administration. Mean and standard deviation were used to answer the research questions, while independent samples t-test was used to test the corresponding null hypotheses. Result revealed that female had a significantly higher level of stress than males, that younger administrators had a significantly higher level of stress than older administrators, while administrators with graduate degrees had a significantly higher level of stress than those without graduate degrees. Based on these results, it was recommended that stress management training should be provided for administrators in Rivers State.