London, CA has a population of 2,084 and is the 10,780th largest city in the United States. The population density is 3,312 per sq mi which is 1325% higher than the California average and 3555% higher than the national average. The median age in London is 25 which is approximately 29% lower than the California average of 36. In London, 45% of the population over 15 years of age are married, 12% speak English and 88% speak Spanish. 54% of London residents were born in California, 4% were born out of state, 0% were born outside of the United States and 41% were foreign born.