Problem statement: Environmental problems are too serious and complex to be solved through scientific approaches, technical and purely legal. Thus, public involvement with a more comprehensive vital is needed. This is because as one of the groups interested, this group can influenced and changed decision related policy legislation and policy related to environment. Public Involvement is needed in every development process as one of the positive move and proactive to create sustainable development. This study carried out in Kota Bharu and Jeli district, Kelantan, Malaysia with 390 respondent involved in each of them. Approach: Major method of study was used investigation question form. This study compared the extent to which a significant correlation (p), Mean (M) and Standard Deviation (SD) of the studied demographic factors as gender, age, race, religion, income, education and the respondent lived with the knowledge of environmental issues, environmental local environment and constraints factors involved in environmental issues at the research areas. Chi-square test used to study demographic factor association with environment issue knowledge respondent. Results: Comparison of demographic factors with knowledge of the respondents of research areas on environmental issues shows that there is relationship for respondents education level with their respective p values is 0.036 and 0.040. The relationship between demographic factors with knowledge of the local environment issues by respondent shows there is also relationship to income and education with their respective p values is 0.033, 0.019 for Kota Bharu and 0014, 0019 for Jeli. As for the relevance of demographic factors of respondents with the constraints factors to be involved with environmental issues shows that have a relationship by the factors of incomes and education with the p values is 0.020,0.037 for Kota Bharu and 0.040,0.011 for others research area. Conclusion: This research find out that factors demographic of the respondents can influenced their knowledge about the environmental issues in both research area and they also agreed that the public involvement in issues environmental issues is very important in ensuring the quality of the environment is always protected and well as help the government formulate strategies to implement sustainable development.