Winchester is a village in Adams County, Ohio, United States. The population was 1,025 at the 2000 census. The name of the surrounding township is also Winchester. As of the census of 2000, there were 1,025 people, 410 households, and 280 families residing in the village. The population density was 381.8 people per square mile (147.7/km2). There were 448 housing units at an average density of 166.9 per square mile (64.5/km2). The racial makeup of the village was 99.02% White, 0.20% Native American, 0.39% Asian, and 0.39% from two or more races. Hispanic or Latino of any race were 0.49% of the population.