Background. In Senegal, despite numerous interventions, the family planning rate has stagnated since 2016. The aim of this study is to analyze the determinants of modern contraceptive use in Senegal in 2019. Methods. This study is a secondary analysis of data from the 2019 Senegal Demographic and Health Survey. The sample consisted of 8998 women aged 15 to 49 years. Univariate, bivariate and multivariate analyses were performed. The dependent variable was the use of a modern contraceptive method (yes/no). STATA.15 software was used. Results. Women using any method of contraception accounted for 18.8%. Those using long-acting methods were more numerous, with implants (37.4%) and injections (29.6%) respectively. Women using the pill were 14.8%. The majority of women had received information about family planning from television (46%) and radio (42.2%). The factors associated with modern contraception were age, women's education (ORaj 1.48 [1.21-1.81]), marital status (ORaj 7.18 [5.29-9.74]), average (ORaj 1.58 [1.18-2.12]) and high (1.62 [1.15-2.27]) socioeconomic status, and receipt of information by radio (ORaj 1.31 [1.08-1.58]). Conclusion. This study has shown that, as part of a multisectoral approach, decision-makers should strengthen women's empowerment (education and income-generating activities). Radio should also be given priority as a means of promoting family planning in Senegal.