The main focus of this study was to investigate Environmental Crude Oil Pollution and its Rising Levels of Socioeconomic/Health Vulnerabilities Among the Rural People in Rivers State, Nigeria. Two null hypotheses were generated to guide the study. Survey design was adopted for the study. The population of the study was Rivers State, and it covered all rural people in the state. A sample of 300 rural respondents was selected for the study. The selection was done through the use of simple random sampling and accidental sampling techniques. The questionnaire was the instrument used for data collection. The instrument was face validated by professionals in the Department of Sociology, University of Port Harcourt, Choba. Furthermore, the reliability value of 0.82 Correlation Co-efficient was obtained for the study. The statistical methods used for the study were percentage, a frequency table and a bar-graph as well as chi-square (X²). Percentage was used to analyse biographical data of respondents' results as presented in a frequency table and a bar-graph for the study. In addition, X² was used to analyse the tested hypotheses for the study at 0.05 level of significance. The results of the analysis revealed that correlationships (associations) exist between environmental crude oil pollution and its rising levels of socio-economic/health vulnerabilities among the rural people in Rivers State of Nigeria. In congruence with these findings, the study recommended among others that the federal government in conjunction with the state government should ensure that they work with multinational companies to cleanup crude oil spills in the rural areas of the state based on the international best practices, alongside adhere to the domesticated crude oil pollution laws in Nigeria.