The population of Au Sable Forks is approximately 6,000. The city has a total area of 2.5 square miles or 6.6 square kilometers, of which 0.02 square kilometers are water. The city's center is centered on New York State Route 9N, which leads 11 miles (18 km) to Keeseville and six miles (10 km) to Jay. The population is evenly distributed, with the majority of people residing in the city center.
The city of Au Sable Forks, NY has 424 people, with 100 percent being U.S. citizens. The median property value was $93,900, and the homeownership rate was 73.7%. Nearly 73% of households commuted by car, with a mean commute time of 26.6 minutes. Most people commuted alone, with an average commute time of 26.6 minutes.
Located in the northeast corner of Clinton County, AuSable is home to the historic 1901 Paper Mill and the Robeson Acid Plant, which employed many people. Both of these industries built Company Houses to provide homes for their employees. The mills closed in 1970, marking the end of an industrial age. Today, many former employees of the Robeson Acid Plant work for the NYS Dept. of Law Enforcement.
The people living in the city's ZIP code are predominantly white. The population is split into three age groups: under 18 years old, 25-44 years old, and 45-64 years or older. One-fifth of the households is made up of single individuals, while the other two are made up of couples. Only a small percentage of households has children under the age of 18.