Lake Forest, California

===2010===
The [[2010 United States Census]]<ref>{{cite web|url=http://www.census.gov/2010census/popmap/ipmtext.php?fl=06:0639496|archive-url=https://archive.today/20140715030419/http://www.census.gov/2010census/popmap/ipmtext.php?fl=06:0639496|url-status=dead|archive-date=July 15, 2014|title=2010 Census Interactive Population Search: CA - Lake Forest city|publisher=U.S. Census Bureau|access-date=July 12, 2014}}</ref> reported that Lake Forest had a population of 77,264. The population density was {{convert|4,315.9|PD/sqmi|PD/km2|sp=us|adj=off}}. The racial makeup of Lake Forest was 54,341 (70.3%) [[White (U.S. Census)|White]] (57.2% Non-Hispanic White),<ref name="quickfacts.census.gov">{{cite web|url=http://quickfacts.census.gov/qfd/states/06/0639496.html|title=Population estimates, July 1, 2015, (V2015)|access-date=July 16, 2016|archive-url=https://web.archive.org/web/20160217102108/http://quickfacts.census.gov/qfd/states/06/0639496.html|archive-date=February 17, 2016|url-status=dead}}</ref> 1,295 (1.7%) [[African American (U.S. Census)|African American]], 384 (0.5%) [[Native American (U.S. Census)|Native American]], 10,115 (13.1%) [[Asian (U.S. Census)|Asian]], 191 (0.2%) [[Pacific Islander (U.S. Census)|Pacific Islander]], 7,267 (9.4%) from [[Race (United States Census)|other races]], and 3,671 (4.8%) from two or more races. [[Hispanic (U.S. Census)|Hispanic]] or [[Latino (U.S. Census)|Latino]] of any race were 19,024 persons (24.6%).

The Census reported that 76,749 people (99.3% of the population) lived in households, 299 (0.4%) lived in non-institutionalized group quarters, and 216 (0.3%) were institutionalized.

There were 26,224 households, out of which 10,407 (39.7%) had children under the age of 18 living in them, 15,603 (59.5%) were married couples, 2,710 (10.3%) had a female householder with no husband present, 1,299 (5.0%) had a male householder with no wife present.  There were 1,217 (4.6%) unmarried partnerships, and 201 (0.8%)same-sex couples. 4,883 households (18.6%) were made up of individuals, and 1,432 (5.5%) had someone living alone who was 65 years of age or older. The average household size was 2.93.  There were 19,612 [[family (U.S. Census)|families]] (74.8% of all households); the average family size was 3.30.

The population was spread out, with 19,115 people (24.7%) under the age of 18, 6,775 people (8.8%) aged 18 to 24, 22,099 people (28.6%) aged 25 to 44, 22,184 people (28.7%) aged 45 to 64, and 7,091 people (9.2%) who were 65 years of age or older.  The median age was 37.2 years. For every 100 females, there were 98.7 males.  For every 100 females age 18 and over, there were 96.5 males.

There were 27,088 housing units at an average density of {{convert|1,513.1|/sqmi|/km2|sp=us|adj=off}}, of which 18,579 (70.8%) were owner-occupied, and 7,645 (29.2%) were occupied by renters. The homeowner vacancy rate was 1.3%; the rental vacancy rate was 4.3%.  54,082 people (70.0% of the population) lived in owner-occupied housing units and 22,667 people (29.3%) lived in rental housing units.