Hilltop is an unincorporated community and census-designated place in central Weathersfield Township, Trumbull County, Ohio, United States.

According to the United States Census Bureau, the CDP has a total area of 0.6 square miles (1.6 km2), all land.

As of the census[3] of 2000, there were 534 people, 199 households, and 160 families residing in the CDP.

There were 208 housing units at an average density of 366.3 per square mile (141.4/km2).

19.1% of all households were made up of individuals, and 8.0% had someone living alone who was 65 years of age or older.