BACKGROUND: Modern contraceptives (MCs) and family planning information are some of the most costeffective public health measures for improving reproductive health, and gender equity among women in developing countries.OBJECTIVE: To assess the knowledge, attitude, and utilization of modern contraceptives in Ikosi LCDA, Lagos state.METHODS: A descriptive research of survey type was employed to assess the Knowledge, Attitude and Utilization of Modern Contraceptives in Ikosi LCDA, Lagos State A multistage sampling technique was used in selecting 153 respondents as the sample size. Data were collated and analyzed using Statistical Package for Social Science. Chi-square was used with the level of significance for the statistical tests set at 0.05.RESULTS: Majority 74(48.4%) of the respondents were between (25-34) age bracket, majority of the respondents 66 (43.1%) had a Primary school level of education, majority of the respondents 98 (64.1%) were married, more than half 89 (58.2%) of the respondents had monogamy marriage type and majority of the respondents 94 (61.4%) practice Christianity. 72 (47.1%) of the respondents accepted that their reason for using contraceptives is that it is affordable. Majority 72 (64.1%) of the respondents have been using contraceptives for a year, while majority 146 (57.5%) of the respondents are willing to continue using contraceptives despite side effects.CONCLUSIONThis study concluded that there is a significant relationship between the sociodemographic characteristics and knowledge on the utilization of contraceptives in the study area. And husband’s refusal is one of the major factors preventing people from using contraceptives in the study area.