Montebello, CA has a population of 63,416 and is the 591st largest city in the United States. The population density is 7,611 per sq mi which is 3175% higher than the California average and 8301% higher than the national average. The median age in Montebello is 37 which is approximately 4% higher than the California average of 36. In Montebello, 47% of the population over 15 years of age are married, 30% speak English and 56% speak Spanish. 58% of Montebello residents were born in California, 5% were born out of state, 1% were born outside of the United States and 37% were foreign born.