Dannemora is a town in Clinton County, New York, United States.

[3][5] The town is named after Dannemora, Sweden, an important iron-mining region.

Both village and town are on the western border of Clinton County, west of Plattsburgh.

[7] Clinton Correctional Facility was opened in the area in 1845,[8] so as to utilize the prisoners in local mining operations.

However, the statute defining the Adirondack Park specifically excludes Dannemora and nearby Altona, due to the prison facilities located in both towns.

Chazy Lake is a large water body that occupies the center of the town.

[14] With the all-male state prison in Dannemora,[15] the data listed above, except for household and family data, is likely to be skewed in comparison with the remainder of the town population and the population of neighboring non-prison towns, particularly with regard to ethnicity and the female:male ratio, because a disproportionate percentage of the prison population is male and black or Hispanic.