Alcohol Treatment Centers Coos County, NH Find local alcohol treatment centers in Coos County, NH. Click on one of the areas listed below to locate alcohol detox facilities in New Hampshire near you. Berlin Carroll Clarksville Colebrook Columbia Dalton Dummer Errol Gorham Groveton Jefferson Lancaster Milan Northumberland Pittsburg Randolph Shelburne Stark Stewartstown Stratford West Stewartstown Whitefield