Introduction: Despite increase in trend of modern contraceptive use in worldwide it was still low in developing country. In Ethiopia modern contraceptive utilization among young married women was low which shows gaps between women reproductive desire to avoid pregnancy and contraceptive behavior. This study showsvaration in modern contraceptive utilization and factor associated with it among young merried age group between 15-24 years in Ethiopia.Objective: The aim of the study was to assess the geographical varation of modern contraceptive utilization and associated factor among young married women aged between 15- 24 year in Ethiopia. Methods:In this study cross-sectional study design was conducted using Ethiopia demographic and health survey 2016 data. The sample size was 2298 young married women aged between 15-24 years.Geographical variation assessed by Spatial analysis using spatial autocorrelation Moran’s I, Gettis-OrdGi* and spatial scan statics to identify significant clusters of modern contraceptive utilization among young married women. Determinant factor for modern contraceptive use were analyzed using a two level-mixed-effects logistic regression model which include both the individual and community level factors.Result: In Ethiopia, prevalence of modern contraceptive utilization among young married women age group between 15-24 years was 36.7 %. Geographical varaition asessed by spatial scan statistics identified primary clusters of modern contraceptive utilization were all zone of Amhara, Addis Ababa and Shewa. In other hand,Gettis-OrdGi* analysisindicated zone 1 of Afar region, Borena zone of Oromia region and all zone of Somalia regions were low prevalencespot region. In this study religion, respondent working status, number of living children, husband desire more children, region, community mas media exposure and community educational level were statically significant variables for modern contraceptive utilization among young married women.Conclusions: There is low prevalence of modern contraceptive utilization among young married women and it was varied across zone of Ethiopia. High and low prevalence spot area, most likely cluster, community and individual level factor associated with modern contraceptive utilization is identified which is important to prioritize family planning strategythat focus particularly for young population segment. Therefore, exerting much effort on all of this area is supreme important as it has significant public health contributions.