Errol is a town in Coös County, New Hampshire, United States.

Errol is part of the Berlin, NH-VT micropolitan statistical area.

[4] Although the soil was considered generally poor, it proved suitable for hay, oats and potatoes.

With vast forests, the town's chief occupation was lumbering.

By 1859, when the population was 130, the town had two sawmills, one gristmill and one clapboard machine.

NH Route 26 extends east towards the township of Cambridge and eventually into Maine.

It extends west through Dixville Notch to the town of Colebrook.

About 9.8% of families and 13.1% of the population were below the poverty line, including 24.2% of those under the age of eighteen and 15.2% of those sixty five or over.