Cairo /ˈkɛəroʊ/ is a town in Greene County, New York, United States. The population was 6,610 at the 2010 census. The town is in the south part of the county, partly in the Catskill Park. The town contains a hamlet also named Cairo.
According to the United States Census Bureau, the town has a total area of 60.1 square miles (155.8 km²), of which 60.0 square miles (155.3 km²) is land and 0.2 square miles (0.4 km², or 0.27%) is water.
Catskill Creek flows through the town.
As of the census of 2000, there were 6,355 people, 2,579 households, and 1,709 families residing in the town. The population density was 106.0 people per square mile (40.9/km²). There were 3,322 housing units at an average density of 55.4 per square mile (21.4/km²). The racial makeup of the town was 96.87% White, 0.55% Black or African American, 0.33% Native American, 0.22% Asian, 0.60% from other races, and 1.43% from two or more races. Hispanic or Latino of any race were 3.67% of the population.
There were 2,579 households out of which 29.9% had children under the age of 18 living with them, 51.6% were married couples living together, 10.3% had a female householder with no husband present, and 33.7% were non-families. 28.4% of all households were made up of individuals and 14.0% had someone living alone who was 65 years of age or older. The average household size was 2.44 and the average family size was 3.00.
In the town, the population was spread out with 25.2% under the age of 18, 6.2% from 18 to 24, 26.3% from 25 to 44, 25.1% from 45 to 64, and 17.3% who were 65 years of age or older. The median age was 40 years. For every 100 females, there were 93.8 males. For every 100 females age 18 and over, there were 90.1 males.
The median income for a household in the town was $35,995, and the median income for a family was $41,820. Males had a median income of $36,590 versus $25,538 for females. The per capita income for the town was $19,407. About 6.1% of families and 10.4% of the population were below the poverty line, including 10.3% of those under age 18 and 10.9% of those age 65 or over.