Sunol, CA has a population of 1,004 and is the 15,131st largest city in the United States. The population density is 36 per sq mi which is 85% lower than the California average and 60% lower than the national average. The median age in Sunol is 51 which is approximately 41% higher than the California average of 36. In Sunol, 63% of the population over 15 years of age are married, 88% speak English and 7% speak Spanish. 62% of Sunol residents were born in California, 27% were born out of state, 0% were born outside of the United States and 10% were foreign born.