Arvin, CA has a population of 20,562 and is the 2,109th largest city in the United States. The population density is 4,267 per sq mi which is 1736% higher than the California average and 4609% higher than the national average. The median age in Arvin is 24 which is approximately 33% lower than the California average of 36. In Arvin, 51% of the population over 15 years of age are married, 12% speak English and 87% speak Spanish. 54% of Arvin residents were born in California, 3% were born out of state, 1% were born outside of the United States and 42% were foreign born.