Lakeside was first listed as an unincorporated place in the
1970 U.S. census; The census reported that 99.3% of the population lived in households, 0.3% lived in non-institutionalized group quarters, and 0.4% were institutionalized. The age distribution was 22.9% under the age of 18, 7.7% aged 18 to 24, 25.3% aged 25 to 44, 27.0% aged 45 to 64, and 17.1% who were 65years of age or older. The median age was 39.9years. For every 100 females, there were 96.1 males. The median household income in 2023 was $94,877, and the
per capita income was $39,128. About 7.5% of families and 10.0% of the population were below the poverty line.
2010 The
2010 United States census reported that Lakeside had a population of 20,648. The population density was . The racial makeup of Lakeside was 17,545 (85.0%)
White, 235 (1.1%)
African American, 181 (0.9%)
Native American, 351 (1.7%)
Asian, 53 (0.3%)
Pacific Islander, 1,327 (6.4%) from
other races, and 956 (4.6%) from two or more races.
Hispanic or
Latino of any race were 3,627 persons (17.6%). The Census reported that 20,465 people (99.1% of the population) lived in households, 81 (0.4%) lived in non-institutionalized group quarters, and 102 (0.5%) were institutionalized. There were 7,347 households, out of which 2,761 (37.6%) had children under the age of 18 living in them, 3,878 (52.8%) were married, 1,086 (14.8%) had a female householder with no husband present, 457 (6.2%) had a male householder with no wife present. There were 477 (7.3%) unmarried. 1,433 households (19.5%) were made up of individuals, and 660 (9.0%) had someone living alone who was 65 years of age or older. The average household size was 2.79. There were 5,421
families (73.8% of all households); the average family size was 3.16. The population was spread out, with 5,050 people (24.5%) under the age of 18, 1,996 people (9.7%) aged 18 to 24, 4,914 people (23.8%) aged 25 to 44, 6,030 people (29.2%) aged 45 to 64, and 2,658 people (12.9%) who were 65 years of age or older. The median age was 39.1 years. For every 100 females, there were 96.6 males. For every 100 females age 18 and over, there were 93.2 males. There were 7,776 housing units at an average density of , of which 5,066 (69.0%) were owner-occupied, and 2,281 (31.0%) were occupied by renters. The homeowner vacancy rate was 2.9%; the rental vacancy rate was 6.6%. 13,773 people (66.7% of the population) lived in owner-occupied housing units and 6,692 people (32.4%) lived in rental housing units. ==Economy==