Lower Lake, CA has a population of 1,558 and is the 12,467th largest city in the United States. The population density is 584 per sq mi which is 128% higher than the California average and 545% higher than the national average. The median age in Lower Lake is 51 which is approximately 41% higher than the California average of 36. In Lower Lake, 51% of the population over 15 years of age are married, 81% speak English and 15% speak Spanish. 65% of Lower Lake residents were born in California, 18% were born out of state, 4% were born outside of the United States and 14% were foreign born.