This survey research was undertaken to determine the level of awareness of smoking effects among elementary and high school students. A 30-item Likert type questionnaire was used to determine the level of awareness of the students. The number of respondents was taken from the seven districts in the elementary level and seven districts in the high school level in Iloilo City. Schools were randomly chosen and one small school (less than 500 enrollees) and one big school (more than 500 enrollees) were taken for each level in each district. Sloven’s formula was applied in getting the total number of respondents ( N= 1310), however, only 1091 questionnaires were retrieved after distribution. The results showed that the students have average level of awareness on smoking effects when taken as an entire group. This may mean that the students are knowledgeable of the harmful effects of smoking to their health. When students were classified according to gender, the study revealed that both groups have average level of awareness. Also, both high school students and elementary grade pupils have average level of awareness of smoking effects. However, when students were grouped, the inferential statistics revealed that girls are significantly more aware than boys and high school students are significantly more aware of the smoking effects than elementary grade pupils.