Gardiner is located in Ulster county New york with a geographic area of 3.9 square miles. The total population in Gardiner is 1,275 with 46.2% male and 53.8% female. Children under age 5 represent 0.0% of the population, under age 18 equal 37.3% of the population and over age 65 is 5.1% of the population. The median household income is $90,381, per capita income is $25,431. There are a total of 371 housing units with 49.1% owner occupied. Education includes 12.9% of residents that are high school graduates and 24.8% with a bachelor's degree or higher. The average temperature in Gardiner in the summer is 70 degrees, and in the winter 27 degrees.