The northern half of the community, within Clinton County, is listed as the Au Sable Forks census-designated place (CDP) and had a population of 559 at the 2010 census.

[2] New York State Route 9N passes through the center of the community, leading 11 miles (18 km) northeast (downstream) to Keeseville and 6 miles (10 km) southwest (upstream on the East Branch) to Jay.

The climate of Au Sable Forks is temperate, with it being very cold in winter and fairly hot in summer.

The shallow dip-slip shock had a maximum Mercalli intensity of VII (Very strong) and caused damage to roads, bridges, buildings, and chimneys.

The racial makeup of the CDP was 98.51% White, 0.30% Black, 0.15% Native American, and 1.04% from two or more races.

[8] The Au Sable Forks Elementary School is located on Church Lane, in Essex County.

[11] Black Brook Town Offices are located within Clinton Co. on North Main Street, with the County Seat in Plattsburgh, New York, while the Township of Jay Government Offices and the local Community Center is located within Essex County, on School Lane, with its County Seat located in Elizabethtown.

The Rogers were prominent citizens originally from the Saratoga region, and business owners who settled in The Forks before 1830.

They operated the Iron Ore Mines on Palmer Hill, Kilns in Swastikia, their huge Charcoal Kiln at Taylor Pond, Company Stores in Au Sable Forks and in the Black Brook Hamlet.

They employed numerous people dating backing to the establishing Au Sable Forks, as their businesses thrived.

In Oct. 1970, the economy of the bustling village nearly disappeared after the closure of the huge Paper Mill.

Au Sable Forks made national headlines in 1987 with the disappearance and subsequent murder of 17-year-old Kari Lynn Nixon, whose story was featured on Unsolved Mysteries.