Microplastics in river is potentially toxic and carcinogenic to aquatic life. Microplastics consumed by aquatic organisms have a negative impact on survival and endanger the aquatic food chain. The research objective was to determine the type and abundance of microplastics in the waters and gastropod Sulcospira sp. in the upper reaches of the Brantas River. The data were collected by sampling at five distinct sites based on land usage. The NOAA standard technique was utilized to detect and determine the quantity of microplastics in gastropods and water samples. The abundance of microplastics in water and sulcospira was determined using two-way ANOVA analysis. Microplastic abundance in water samples is 5600 particles/m³ and 6.38 particles/individual in sulcospira gastropod samples. The predominant microplastic in the water and sulcospira samples is fiber type. Multivariate testing for various types of microplastics discovered in different samples and collecting locations yielded a P<0.05. The abundance of microplastics in water samples and sulcospira samples varied by station.