Yolo, CA has a population of 448 and is the 20,237th largest city in the United States. The population density is 325 per sq mi which is 40% higher than the California average and 258% higher than the national average. The median age in Yolo is 36 which is approximately equal to the California average of 36. In Yolo, 54% of the population over 15 years of age are married, 44% speak English and 56% speak Spanish. 57% of Yolo residents were born in California, 11% were born out of state, 0% were born outside of the United States and 32% were foreign born.