Alpine, CA has a population of 15,188 and is the 2,802nd largest city in the United States. The population density is 567 per sq mi which is 144% higher than the California average and 526% higher than the national average. The median age in Alpine is 44 which is approximately 23% higher than the California average of 36. In Alpine, 60% of the population over 15 years of age are married, 84% speak English and 11% speak Spanish. 62% of Alpine residents were born in California, 28% were born out of state, 1% were born outside of the United States and 9% were foreign born.