Mentone, CA has a population of 9,901 and is the 3,961st largest city in the United States. The population density is 1,607 per sq mi which is 592% higher than the California average and 1674% higher than the national average. The median age in Mentone is 35 which is approximately 2% lower than the California average of 36. In Mentone, 50% of the population over 15 years of age are married, 74% speak English and 16% speak Spanish. 68% of Mentone residents were born in California, 15% were born out of state, 2% were born outside of the United States and 15% were foreign born.