Pike is a small village within the town of Haverhill, New Hampshire, in the United States. It is located in western Grafton County, approximately 3 miles (5 km) east of the village of Haverhill, on Oliverian Brook. New Hampshire Route 25 runs through the community, heading west to the nearby Connecticut River valley and east through Oliverian Notch to the southern foothills of the White Mountains. Pike has a separate ZIP code (03780) from the rest of Haverhill. The Pike telephone exchange covers the southern half of the town of Haverhill, including Haverhill village, and extends east to include the village of Glencliff in the town of Warren.