Trinidad is located in Humboldt county California with a geographic area of 0.5 square miles. The total population in Trinidad is 348 with 56.0% male and 44.0% female. Children under age 5 represent 3.7% of the population, under age 18 equal 12.1% of the population and over age 65 is 28.4% of the population. The median household income is $88,125, per capita income is $58,004. There are a total of 164 housing units with 68.3% owner occupied. Education includes 9.8% of residents that are high school graduates and 71.3% with a bachelor's degree or higher. The average temperature in Trinidad in the summer is 58 degrees, and in the winter 43 degrees.