Hamilton branch is located in Plumas county California with a geographic area of 1.1 square miles. The total population in Hamilton branch is 446 with 55.4% male and 44.6% female. Children under age 5 represent 0.7% of the population, under age 18 equal 9.0% of the population and over age 65 is 35.7% of the population. The median household income is $64,148, per capita income is $41,387. There are a total of 221 housing units with 88.2% owner occupied. Education includes 19.9% of residents that are high school graduates and 30.8% with a bachelor's degree or higher. The average temperature in Hamilton branch in the summer is 76 degrees, and in the winter 43 degrees.