Hemlock is located in Livingston county New york with a geographic area of 1.9 square miles. The total population in Hemlock is 550 with 47.6% male and 52.4% female. Children under age 5 represent 1.8% of the population, under age 18 equal 12.2% of the population and over age 65 is 0.0% of the population. The median household income is $74,776, per capita income is $27,239. There are a total of 183 housing units with 100.0% owner occupied. Education includes 14.8% of residents that are high school graduates and 0.0% with a bachelor's degree or higher. The average temperature in Hemlock in the summer is 70 degrees, and in the winter 27 degrees.