Arriba is located in Lincoln county Colorado with a geographic area of 0.5 square miles. The total population in Arriba is 175 with 58.3% male and 41.7% female. Children under age 5 represent 2.9% of the population, under age 18 equal 34.9% of the population and over age 65 is 16.6% of the population. The median household income is $22,500, per capita income is $15,909. There are a total of 74 housing units with 54.1% owner occupied. Education includes 39.2% of residents that are high school graduates and 4.1% with a bachelor's degree or higher. The average temperature in Arriba in the summer is 68 degrees, and in the winter 29 degrees.