[3] According to the 2021 American Community Survey, the most commonly spoken languages in Los Angeles by people aged 5 years and over (3,650,704 people) were:[4] The top non-English languages spoken at home in Los Angeles are Spanish, Korean, Armenian, Chinese and Persian.

[5] According to the 2006-2008 American Community Survey, the types of households were as follows out of 1,275,534 total:[3] According to the same survey, the educational status of residents over 25 years (2,407,775 total) was as follows:[6] According to the 2006-2008 American Community Survey, the income status of residents was as follows:[6] According to the same survey, the poverty status of residents was as follows:[6] According to the 2006-2008 American Community Survey, the employment status of residents was as follows[6] Religion in Los Angeles (2020 PRRI)[7] According to a 2014 study by the Pew Research Center, Christianity is the most prevalently practiced religion in Los Angeles, with around 65% of residents adhering to the faith; around 32% of these followed the Roman Catholic Church, 30% to various Protestant denominations, and the last 3% adhering to other Christian persuasions (including Orthodox Christians, Jehovah's Witnesses and Mormons).

[14] Once a tradition, the descendants of original Anglo-American settlers who represented civic leaders and economic influence in the city of Los Angeles held Iowa picnics in MacArthur Park, though this has not been observed since the early 1970s.

[15] Many areas in the city, especially West Hollywood and parts of Long Beach, are known for having significant LGBT communities or LGBT-friendly neighborhoods.

[16] Persons of the Baháʼí Faith,[17] Mormons in the Latter-Day Saints churches,[18][failed verification] Seventh-day Adventists (with their church-operated Loma Linda University),[19][failed verification] and the Church of Scientology all have headquarters in Los Angeles and exert great influence over their congregations in the city and throughout Southern California.

[21][failed verification] Cherokee Indians, among other Native American tribes (such as the Apache, Choctaw, Comanche, Hopi, Muscogee (Creek), Navajo, Nez Perce, Northern Paiute, Shawnee and Zuni peoples), account for Los Angeles likely having the largest Urban Indian population.

[22] Los Angeles, along with Pasadena at the turn of the 20th century, were one of two of the earliest internationally-known retirement communities to attract a significant number of senior citizens and retirees in search of a warmer climate to relax in, and to better overall health and wellness.

There was a small population of Greeks living in the Boyle Heights area, along with other immigrant groups including Russians, Syrians, Armenians, and East European Jews by the late 1890s.