Arbuckle, CA has a population of 3,244 and is the 8,414th largest city in the United States. The population density is 1,844 per sq mi which is 693% higher than the California average and 1935% higher than the national average. The median age in Arbuckle is 31 which is approximately 14% lower than the California average of 36. In Arbuckle, 61% of the population over 15 years of age are married, 31% speak English and 69% speak Spanish. 58% of Arbuckle residents were born in California, 7% were born out of state, 1% were born outside of the United States and 34% were foreign born.