Editing San Marino, California (section)

==Demographics==
{{US Census population
| 1920 = 584
| 1930 = 3730
| 1940 = 8175
| 1950 = 11230
| 1960 = 13658
| 1970 = 14177
| 1980 = 13307
| 1990 = 12959
| 2000 = 12945
| 2010 = 13147
| 2020 = 12513
| estyear = 2022
| estimate = 12039
| estref = <ref>{{cite web | url=https://www.census.gov/quickfacts/sanmarinocitycalifornia | title=U.S. Census Bureau QuickFacts: San Marino city, California }}</ref>
|align-fn=center
|footnote=U.S. Decennial Census<ref name="DecennialCensus">{{cite web|url=https://www.census.gov/programs-surveys/decennial-census/decade.html|title=Decennial Census by Decade|website=[[United States Census Bureau]]|access-date=}}</ref><br>1850–1870<ref name=1870CensusCA1>{{Cite web|title= 1870 Census of Population - Population of Civil Divisions less than Counties - California - Almeda County to Sutter County |url=https://www2.census.gov/library/publications/decennial/1870/population/1870a-12.pdf|website=[[United States Census Bureau]]}}</ref><ref name=1870CensusCA2>{{Cite web|title= 1870 Census of Population - Population of Civil Divisions less than Counties - California - Tehama County to Yuba County  |url=https://www2.census.gov/library/publications/decennial/1870/population/1870a-13.pdf|website=[[United States Census Bureau]]}}</ref> 1880-1890<ref name=1890CensusCA>{{Cite web|title= 1890 Census of Population - Population of California by Minor Civil Divisions |url=https://www2.census.gov/library/publications/decennial/1890/bulletins/demographics/134-population-of-ca.pdf|website=[[United States Census Bureau]]}}</ref><br> 1900<ref name=1900CensusCA>{{Cite web|title= 1900 Census of Population - Population of California by Counties and Minor Civil Divisions |url=https://www2.census.gov/library/publications/decennial/1900/bulletins/demographic/10-population-ca.pdf|website=[[United States Census Bureau]]}}</ref> 1910<ref name=1910CensusCA>{{Cite web|title= 1910 Census of Population - Supplement for California |url=https://www2.census.gov/library/publications/decennial/1910/abstract/supplement-ca.pdf|website=[[United States Census Bureau]]}}</ref> 1920<ref name=1920CensusCA>{{Cite web|title= 1920 Census of Population - Number of Inhabitants - California |url=https://www2.census.gov/library/publications/decennial/1920/bulletins/demographics/population-ca-number-of-inhabitants.pdf|website=[[United States Census Bureau]]}}</ref><br> 1930<ref name=1930CensusCA>{{Cite web|title= 1930 Census of Population - Number and Distribution of Inhabitants - California |url=https://www2.census.gov/library/publications/decennial/1930/population-volume-1/03815512v1ch03.pdf|website=[[United States Census Bureau]]}}</ref> 1940<ref name=1940CensusCA>{{Cite web|title= 1940 Census of Population - Number of Inhabitants - California |url=https://www2.census.gov/library/publications/decennial/1940/population-volume-1/33973538v1ch03.pdf|website=[[United States Census Bureau]]}}</ref> 1950<ref name=1950CensusCA>{{Cite web|title= 1950 Census of Population - Number of Inhabitants - California |url=https://www2.census.gov/library/publications/decennial/1950/population-volume-1/vol-01-08.pdf|website=[[United States Census Bureau]]}}</ref><br> 1960<ref name=1960CensusCA>{{Cite web|title= 1960 Census of Population - General population Characteristics - California |url=https://www2.census.gov/library/publications/decennial/1960/population-volume-1/vol-01-06-d.pdf|website=[[United States Census Bureau]]}}</ref> 1970<ref name=1970CensusCA>{{Cite web|title= 1970 Census of Population - Number of Inhabitants - California |url=https://www2.census.gov/prod2/decennial/documents/1970a_ca1-01.pdf|website=[[United States Census Bureau]]}}</ref> 1980<ref name=1980CensusCA>{{Cite web|title= 1980 Census of Population - Number of Inhabitants - California |url=https://www2.census.gov/prod2/decennial/documents/1980a_caAB-01.pdf|website=[[United States Census Bureau]]}}</ref><br> 1990<ref name=1990CensusCA>{{Cite web|title= 1990 Census of Population - Population and Housing Unit Counts - California |url=https://www2.census.gov/prod2/cen1990/cph2/cph-2-6.pdf|website=[[United States Census Bureau]]}}</ref>
2000<ref name=2000CensusCA>{{Cite web|title= 2000 Census of Population - Population and Housing Unit Counts - California |url=https://www2.census.gov/library/publications/2003/dec/phc-3-6.pdf|website=[[United States Census Bureau]]}}</ref> 2010<ref name=2010CensusCA>{{Cite web|title= 2010 Census of Population - Population and Housing Unit Counts - California |url=https://www2.census.gov/library/publications/decennial/2010/cph-2/cph-2-6.pdf|website=[[United States Census Bureau]]}}</ref><br> 2020<ref name=2020CensusP2/>
}}

San Marino first appeared as a [[census designated place]] in the [[1920 U.S. Census]].<ref name=1920CensusCA/> Prior to incorporation, the community belonged to unincorporated San Gabriel township.<ref name=1920CensusCA/>

===2020===
{| class="wikitable" style="text-align:center;"
|+'''San Marino city, California – Racial and ethnic composition'''<br><small>{{nobold|''Note: the US Census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from the racial categories and assigns them to a separate category. Hispanics/Latinos may be of any race.''}}</small>
!Race / Ethnicity <small>(''NH = Non-Hispanic'')</small>
!Pop 2000<ref name=2000CensusP004>{{Cite web|title=P004: Hispanic or Latino, and Not Hispanic or Latino by Race – 2000: DEC Summary File 1 – San Marino city, California|url=https://data.census.gov/table?g=160XX00US0668224&tid=DECENNIALSF12000.P004|website=[[United States Census Bureau]] |access-date= }}</ref>
!Pop 2010<ref name=2010CensusP2>{{Cite web|title=P2: Hispanic or Latino, and Not Hispanic or Latino by Race – 2010: DEC Redistricting Data (PL 94-171) – San Marino city, California|url=https://data.census.gov/cedsci/table?q=p2&g=160XX00US0668224&tid=DECENNIALPL2010.P2|website=[[United States Census Bureau]] |access-date= }}</ref>
!{{partial|Pop 2020}}<ref name=2020CensusP2>{{Cite web|title=P2: Hispanic or Latino, and Not Hispanic or Latino by Race – 2020: DEC Redistricting Data (PL 94-171) – San Marino city, California |url=https://data.census.gov/cedsci/table?q=p2&g=160XX00US0668224&tid=DECENNIALPL2020.P2|website=[[United States Census Bureau]] |access-date= }}</ref>
!% 2000
!% 2010
!{{partial|% 2020}}
|-
|[[Non-Hispanic or Latino whites|White]] alone (NH)
|5,771
|4,872
|style='background: #ffffe6; |3,469
|44.58%
|37.06%
|style='background: #ffffe6; |27.72%
|-
|[[Non-Hispanic or Latino African Americans|Black or African American]] alone (NH)
|29
|53
|style='background: #ffffe6; |58
|0.22%
|0.40%
|style='background: #ffffe6; |0.46%
|-
|[[Native Americans in the United States|Native American]] or [[Alaska Native]] alone (NH)
|0
|1
|style='background: #ffffe6; |4
|0.00%
|0.01%
|style='background: #ffffe6; |0.03%
|-
|[[Asian Americans|Asian]] alone (NH)
|6,271
|7,010
|style='background: #ffffe6; |7,581
|48.44%
|53.32%
|style='background: #ffffe6; |60.58%
|-
|[[Native Hawaiian]] or [[Pacific Islander Americans|Pacific Islander]] alone (NH)
|9
|2
|style='background: #ffffe6; |7
|0.07%
|0.02%
|style='background: #ffffe6; |0.06%
|-
|[[Race and ethnicity in the United States census|Other race]] alone (NH)
|24
|25
|style='background: #ffffe6; |22
|0.19%
|0.19%
|style='background: #ffffe6; |0.18%
|-
|[[Multiracial Americans|Mixed race or Multiracial]] (NH)
|270
|329
|style='background: #ffffe6; |484
|2.09%
|2.50%
|style='background: #ffffe6; |3.87%
|-
|[[Hispanic and Latino Americans|Hispanic or Latino]] (any race)
|571
|855
|style='background: #ffffe6; |888
|4.41%
|6.50%
|style='background: #ffffe6; |7.10%
|-
|'''Total'''
|'''12,945'''
|'''13,147'''
|style='background: #ffffe6; |'''12,513'''
|'''100.00%'''
|'''100.00%'''
|style='background: #ffffe6; |'''100.00%'''
|}

The [[2020 United States census]]<ref name=":3">{{Cite web |title=Explore Census Data |url=https://data.census.gov/table?g=040XX00US06_160XX00US0668224&d=DEC+Demographic+Profile&tid=DECENNIALDP2020.DP1 |access-date=June 12, 2023 |website=data.census.gov}}</ref> reported that San Marino's population was 12,513 residents. This is a decline from the 2010 census, where the population was 13,147.<ref name=":4" /> [[Asian Americans]] constituted the majority of San Marino residents at 8,061 (64.4%). [[White Americans]] were the second-largest group at 4,484 residents (35.8%). [[African Americans]] were the third-largest group at 109 residents (0.9%). [[Native Americans in the United States|American Indians]] or Native Americans represented 94 residents (0.8%). [[Native Hawaiians]] and [[Pacific Islander]]s represented 92 residents (0.7%). 722 residents responded as '[[Race and ethnicity in the United States census|some other race]]' (5.8%).<ref name=":3" /> 888 residents identified as [[Hispanic or Latino American]] (7.1%).

The largest age demographic were 15-19 year olds, representing 1,064 residents (8.5%). The second-largest age demographic were 55-59 year olds, representing 1,016 residents (8.1%). 9,892 residents (79.1%) were [[Age of majority|18 years old or older]] and 3,519 (28.1%) were over [[Old age|the age of 62]].<ref name=":3" />

According to the 2020 Census, San Marino had a median household income of $174,253, with 9.0% of the population living below the federal poverty line. With a median home price of $2,699,098,<ref>{{cite web |title=Housing in San Marino, CA |url=https://www.berkshirehathawayhs.com/homes-for-sale/CA/San-Marino |website=Berkshire Hathaway |access-date=October 11, 2017 |archive-url=https://web.archive.org/web/20181016130046/https://www.bestplaces.net/housing/city/california/san_marino |archive-date=October 16, 2018 |url-status=live }}</ref> San Marino is one of the most expensive neighborhoods in the Los Angeles area.<ref>[https://www.census.gov/quickfacts/fact/table/sanmarinocitycalifornia,US/INC110221 Unknown]{{Dead link | date=January 2025 | fix-attempted=yes}}</ref><ref>{{cite news |last1=del Giudice |first1=Vincent |last2=Lu |first2=Wei |title=America's 100 Richest Places |url=https://www.bloomberg.com/graphics/2017-hundred-richest-places/ |newspaper=Bloomberg.com |publisher=Bloomberg}}</ref>

===2010===
The [[2010 United States census]]<ref name=":4">{{cite web|url=http://www.census.gov/2010census/popmap/ipmtext.php?fl=06:0668224|archive-url=https://archive.today/20140715032936/http://www.census.gov/2010census/popmap/ipmtext.php?fl=06:0668224|url-status=dead|archive-date=July 15, 2014|title=2010 Census Interactive Population Search: CA - San Marino city|publisher=U.S. Census Bureau|access-date=July 12, 2014}}</ref> reported that San Marino had a population of 13,147. The population density was {{convert|3,483.4|PD/sqmi|PD/km2|sp=us|adj=off}}. The racial makeup of San Marino was 5,434 (41.3%) [[White (U.S. Census)|White]] (37.1% Non-Hispanic White),<ref name="quickfacts.census.gov">{{cite web|url=http://quickfacts.census.gov/qfd/states/06/0668224.html|access-date=November 30, 2013|archive-url=https://web.archive.org/web/20120830003402/http://quickfacts.census.gov/qfd/states/06/0668224.html|archive-date=August 30, 2012|url-status=live|title=San Marino (City) QuickFacts from the US Census Bureau }}</ref> 55 (0.4%) [[African American (U.S. Census)|African American]], 5 (0.0%) [[Native American (U.S. Census)|Native American]], 7,039 (53.5%) [[Asian (U.S. Census)|Asian]], 2 (0.0%) [[Pacific Islander (U.S. Census)|Pacific Islander]], 198 (1.5%) from [[Race (United States census)|other races]], and 414 (3.1%) from two or more races. [[Hispanic (U.S. Census)|Hispanic]] or [[Latino (U.S. Census)|Latino]] of any race were 855 persons (6.5%).

The census reported that 13,066 people (99.4% of the population) lived in households, 81 (0.6%) lived in non-institutionalized group quarters, and 0 (0%) were institutionalized.

There were 4,330 households, out of which 1,818 (42.0%) had children under the age of 18 living in them, 3,220 (74.4%) were [[marriage|opposite-sex married couples]] living together, 367 (8.5%) had a female householder with no husband present, 143 (3.3%) had a male householder with no wife present. There were 42 (1.0%) [[POSSLQ|unmarried opposite-sex partnerships]], and 22 (0.5%) [[same-sex partnerships|same-sex married couples or partnerships]]. Of all households, 531 (12.3%) were made up of individuals, and 359 (8.3%) had someone living alone who was 65 years of age or older. The average household size was 3.02. There were 3,730 [[family (U.S. Census)|families]] (86.1% of all households); the average family size was 3.28.

The population was spread out, with 3,422 people (26.0%) under the age of 18, 712 people (5.4%) aged 18 to 24, 2,353 people (17.9%) aged 25 to 44, 4,351 people (33.1%) aged 45 to 64, and 2,309 people (17.6%) who were 65 years of age or older. The median age was 45.3 years. For every 100 females, there were 92.4 males. For every 100 females age 18 and over, there were 87.7 males.

There were 4,477 housing units at an average density of {{convert|1,186.2|/mi2|/km2|disp=preunit|units&nbsp;|units|}}, of which 3,959 (91.4%) were owner-occupied, and 371 (8.6%) were occupied by renters. The homeowner vacancy rate was 0.5%; the rental vacancy rate was 6.5%; 11,834 people (90.0% of the population) lived in owner-occupied housing units and 1,232 people (9.4%) lived in rental housing units.

===2000===
As of the census<ref name="GR2">{{cite web|url=https://www.census.gov|publisher=[[United States Census Bureau]]|access-date=January 31, 2008|title=U.S. Census website}}</ref> of 2000, there were 12,945 people, 4,266 households, and 3,673 families residing in the city. The population density was {{convert|3,430.5|PD/sqmi|PD/km2|sp=us|adj=off}}. There were 4,437 housing units at an average density of {{convert|1,175.8|/mi2|/km2|disp=preunit|units&nbsp;|units|}}. The racial makeup of the city was 51.98% [[White (U.S. Census)|White]], 0.15% [[African American (U.S. Census)|African American]], 0.05% [[Native American (U.S. Census)|Native American]], 47.7% [[Asian (U.S. Census)|Asian]], 0.08% [[Pacific Islander (U.S. Census)|Pacific Islander]], 1.04% from [[Race (United States census)|other races]], and 2.30% from two or more races. [[Hispanic (U.S. Census)|Hispanic]] or [[Latino (U.S. Census)|Latino]] of any race were 3.25% of the population. More than one-third of the city's population, 33.3%, was Chinese.<ref name="US Census Bureau, 2000 Census factsheet">{{cite web|url=http://factfinder.census.gov/servlet/SAFFFacts?_event=Search&geo_id=&_geoContext=&_street=&_county=San+Marino&_cityTown=San+Marino&_state=04000US06&_zip=&_lang=en&_sse=on&pctxt=fph&pgsl=010&show_2003_tab=&redirect=Y|title=US Census Bureau, 2000 Census factsheet|access-date=June 20, 2007|archive-url=https://archive.today/20200212052326/http://factfinder.census.gov/servlet/SAFFFacts?_event=Search&geo_id=&_geoContext=&_street=&_county=San+Marino&_cityTown=San+Marino&_state=04000US06&_zip=&_lang=en&_sse=on&pctxt=fph&pgsl=010&show_2003_tab=&redirect=Y|archive-date=February 12, 2020|url-status=dead}}</ref>

There were 4,266 households, out of which 42% had children under the age of 18 living with them, 75% were married couples living together, 8.6% had a female householder with no husband present, and 13.9% were non-families. Of all households 12% were made up of individuals, and 7.3% had someone living alone who was 65 years of age or older. The average household size was 3.03 and the average family size was 3.29.

In the city, the age distribution of the population showed 26.5% under the age of 18, 6.4% from 18 to 24, 21.5% from 25 to 44, 29.4% from 45 to 64, and 16.2% who were 65 years of age or older. The median age was 43 years (this was older than average age in the U.S.).<ref>{{cite web|url=http://www.muninetguide.com/states/california/municipality/San_Marino.php|title=San Marino, California Demographics - City and State Information - Population and Housing Data|website=muninetguide.com|access-date=March 19, 2018|archive-url=https://web.archive.org/web/20100803005727/http://www.muninetguide.com/states/california/municipality/San_Marino.php|archive-date=August 3, 2010|url-status=live}}</ref> For every 100 females, there were 93.1 males. For every 100 females age 18 and over, there were 89.1 males.

San Marino is one of the county's cities with the highest proportion of residents of Asian ancestry. {{10 Asian neighborhoods in Los Angeles County}}