Morrisonville is a hamlet and census-designated place in Clinton County, New York, United States.

Morrisonville is located 5 miles (8 km) west of downtown Plattsburgh at 44°41′27″N 73°33′3″W / 44.69083°N 73.55083°W / 44.69083; -73.55083 (44.690778, -73.550775).

[3] New York State Route 22B passes through the village, beginning at New York State Route 3 near the eastern end of the CDP and leading south to the hamlets of Schuyler Falls and Peru.

21.5% of all households were made up of individuals, and 10.0% had someone living alone who was 65 years of age or older.

Most of the census-designated place is within the Saranac Central School District.