Surface sediments from tropical coastal settings of Southwestern Johor, Malaysia, were analyzed for grain size, major element content and clay minerals using particle size analyzer, scanning electron microscope-energy dispersive spectrometer (SEM-EDS) and X-ray Diffractometer (XRD). This work is aimed at investigating the geochemical composition of surface sediments and possible anthropogenic inputs from urban settlements. Sediment texture was found to be clayey with an average of 45.15%. The abundance of major elements in decreasing order is SiO2 > Al2O3 > K2O ≥ ClO2 ≥ Na2O > MgO > MnO > ZnO. The dominance of SiO2 appears to be linked with the draining of Sungai Pulai to the study area. The concentration of ZnO registered a hundred times higher than the average natural level of zinc in the earth's crust. Higher levels of Zn might be derived from the combination of anthropogenic input and natural geochemical processes. Mineral abundance follows the order of quartz > kaolinite > muscovite > smectite > calcite> illite. Smectite was detected in the upper river sediment, but was not present in the estuarine sediment. This is likely due to the accumulation and intensity of weathering products. The dominance of quartz in the coastal sediments is due to the intense weathering process.