 From 1926 to 1929, the Cristero War took place and Arandas was a focal during the war because of the strong religious sentiments of the population.The crater Arandas, on planet Mars, was named after the city since 1976, when the International Astronomical Union agreed to put it in honor of the city.According to the Second Count of Population and Housing, city has 80,193 inhabitants, of which 38,171 are males and 42,022 are women; 0.56% of the population are of Indigenous backgrounds.