Lake Forest is a city located in California. With a 2020 population of 85,831, it is the 96th largest city in California and the 399th largest city in the United States. Lake Forest is currently growing at a rate of 0.18% annually and its population has increased by 11.09% since the most recent census, which recorded a population of 77,264 in 2010. Lake Forest reached it's highest population of 85,831 in 2021. Spanning over 17 miles, Lake Forest has a population density of 5,160 people per square mile.
The average household income in Lake Forest is $134,490 with a poverty rate of 6.94%. The median rental costs in recent years comes to $2,025 per month, and the median house value is $647,500. The median age in Lake Forest is 39.6 years, 37.8 years for males, and 41.3 years for females. For every 100 females there are 95.7 males.