Editing Placentia, California (section)

== Demographics ==
{{US Census population
|1930= 1606
|1940= 1472
|1950= 1682
|1960= 5861
|1970= 21948
|1980= 35041
|1990= 41259
|2000= 46488
|2010= 50533
|2020= 51824
|estyear=
|estimate=
|estref=
|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=|archive-date=July 6, 2022|archive-url=https://web.archive.org/web/20220706023553/https://www.census.gov/programs-surveys/decennial-census/decade.html|url-status=live}}</ref><br>1860–1870<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]]|access-date=August 12, 2024|archive-date=September 7, 2024|archive-url=https://web.archive.org/web/20240907072108/https://www2.census.gov/library/publications/decennial/1870/population/1870a-12.pdf|url-status=live}}</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]]|access-date=August 12, 2024|archive-date=August 28, 2024|archive-url=https://web.archive.org/web/20240828190324/https://www2.census.gov/library/publications/decennial/1870/population/1870a-13.pdf|url-status=live}}</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]]|access-date=August 12, 2024|archive-date=August 12, 2024|archive-url=https://web.archive.org/web/20240812164053/https://www2.census.gov/library/publications/decennial/1900/bulletins/demographic/10-population-ca.pdf|url-status=live}}</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]]|access-date=August 12, 2024|archive-date=August 23, 2024|archive-url=https://web.archive.org/web/20240823050629/https://www2.census.gov/library/publications/decennial/1910/abstract/supplement-ca.pdf|url-status=live}}</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]]|access-date=August 12, 2024|archive-date=August 28, 2024|archive-url=https://web.archive.org/web/20240828162810/https://www2.census.gov/library/publications/decennial/1930/population-volume-1/03815512v1ch03.pdf|url-status=live}}</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]]|access-date=August 12, 2024|archive-date=September 18, 2024|archive-url=https://web.archive.org/web/20240918190408/https://www2.census.gov/library/publications/decennial/1940/population-volume-1/33973538v1ch03.pdf|url-status=live}}</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]]|access-date=August 12, 2024|archive-date=September 21, 2024|archive-url=https://web.archive.org/web/20240921120611/https://www2.census.gov/library/publications/decennial/1950/population-volume-1/vol-01-08.pdf|url-status=live}}</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]]|access-date=August 12, 2024|archive-date=August 12, 2024|archive-url=https://web.archive.org/web/20240812164028/https://www2.census.gov/library/publications/decennial/1960/population-volume-1/vol-01-06-d.pdf|url-status=live}}</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]]|access-date=August 12, 2024|archive-date=August 12, 2024|archive-url=https://web.archive.org/web/20240812164028/https://www2.census.gov/prod2/decennial/documents/1970a_ca1-01.pdf|url-status=live}}</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]]|access-date=August 12, 2024|archive-date=August 23, 2024|archive-url=https://web.archive.org/web/20240823052400/https://www2.census.gov/prod2/decennial/documents/1980a_caAB-01.pdf|url-status=live}}</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]]|access-date=August 12, 2024|archive-date=August 14, 2024|archive-url=https://web.archive.org/web/20240814213918/https://www2.census.gov/prod2/cen1990/cph2/cph-2-6.pdf|url-status=live}}</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]]|access-date=August 12, 2024|archive-date=February 4, 2023|archive-url=https://web.archive.org/web/20230204210903/https://www2.census.gov/library/publications/decennial/2010/cph-2/cph-2-6.pdf|url-status=live}}</ref><br> 2020<ref name=2020CensusP2/>
}}

Placentia was first listed as a city in the [[1930 U.S. Census]].<ref name=1930CensusCA/> Prior to 1920, the area was part of unincorporated Fullerton Township (pop 5,037 in 1920).<ref name=1920CensusCA/>

===2020 census===
{| class="wikitable" style="text-align:center;"
|+'''Placentia 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 – Placentia city, California |url=https://data.census.gov/table?g=160XX00US0657526&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) – Placentia city, California|url=https://data.census.gov/cedsci/table?q=p2&g=160XX00US0657526&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) – Placentia city, California |url=https://data.census.gov/cedsci/table?q=p2&g=160XX00US0657526&tid=DECENNIALPL2020.P2|website=[[United States Census Bureau]] |access-date= }}</ref>
!% 2000
!% 2010
!{{partial|% 2020}}
|-
|[[Non-Hispanic or Latino whites|White]] alone (NH)
|24,967
|22,590
|style='background: #ffffe6; |18,993
|53.71%
|44.70%
|style='background: #ffffe6; |36.65%
|-
|[[Non-Hispanic or Latino African Americans|Black or African American]] alone (NH)
|746
|818
|style='background: #ffffe6; |946
|1.60%
|1.62%
|style='background: #ffffe6; |1.83%
|-
|[[Native Americans in the United States|Native American]] or [[Alaska Native]] alone (NH)
|177
|123
|style='background: #ffffe6; |105
|0.38%
|0.24%
|style='background: #ffffe6; |0.20%
|-
|[[Asian Americans|Asian]] alone (NH)
|5,121
|7,457
|style='background: #ffffe6; |9,940
|11.02%
|14.76%
|style='background: #ffffe6; |19.18%
|-
|[[Native Hawaiian]] or [[Pacific Islander Americans|Pacific Islander]] alone (NH)
|65
|58
|style='background: #ffffe6; |69
|0.14%
|0.11%
|style='background: #ffffe6; |0.13%
|-
|[[Race and ethnicity in the United States census|Other race]] alone (NH)
|61
|74
|style='background: #ffffe6; |219
|0.13%
|0.15%
|style='background: #ffffe6; |0.42%
|-
|[[Multiracial Americans|Mixed race or Multiracial]] (NH)
|891
|997
|style='background: #ffffe6; |1,861
|1.92%
|1.97%
|style='background: #ffffe6; |3.59%
|-
|[[Hispanic and Latino Americans|Hispanic or Latino]] (any race)
|14,460
|18,416
|style='background: #ffffe6; |19,691
|31.10%
|36.44%
|style='background: #ffffe6; |38.00%
|-
|'''Total'''
|'''46,488'''
|'''50,533'''
|style='background: #ffffe6; |'''51,824 '''
|'''100.00%'''
|'''100.00%'''
|style='background: #ffffe6; |'''100.00%'''
|}

=== 2010 ===
The [[2010 United States Census]]<ref>{{cite web|url=http://www.census.gov/2010census/popmap/ipmtext.php?fl=06:0657526|archive-url=https://archive.today/20140715032504/http://www.census.gov/2010census/popmap/ipmtext.php?fl=06:0657526|url-status=dead|archive-date=July 15, 2014|title=2010 Census Interactive Population Search: CA – Placentia city|publisher=U.S. Census Bureau|access-date=July 12, 2014}}</ref> reported that Placentia had a population of 50,533. The [[population density]] was {{convert|7,677.0|/mi2|/km2|disp=preunit|people&nbsp;|people|}}. The [[Race (United States Census)|racial makeup]] of Placentia was:

* 31,373 (62.1%) White (44.7% Non-Hispanic White)<ref name="census">{{cite web|url=http://quickfacts.census.gov/qfd/states/06/0657526.html|title=Census Data|access-date=December 18, 2013|archive-url=https://web.archive.org/web/20150402095245/http://quickfacts.census.gov/qfd/states/06/0657526.html|archive-date=April 2, 2015|url-status=dead}}</ref> 
* 914 (1.8%) African American
* 386 (0.8%) Native American
* 7,531 (14.9%) Asian
* 74 (0.1%) Pacific Islander
* 8,247 (16.3%) from other races
* 2,008 (4.0%) from two or more races 
* 18,416 residents (36.4%) were Hispanic or Latino, of any race.

The census reported that 50,196 people (99.3% of the population) lived in households, 253 (0.5%) lived in noninstitutionalized group quarters, and 84 (0.2%) were institutionalized.

Of the 16,365 households, 38.6% had children under 18 living in them, 57.4% were opposite-sex married couples living together, 12.6% had a female householder with no husband present, 5.5% had a male householder with no wife present, 4.6% were [[POSSLQ|unmarried opposite-sex partnerships]], and 0.6% were [[same-sex partnerships|same-sex married couples or partnerships]]. About 17.6% of households were made up of individuals, and 7.8% had someone living alone who was 65 or older. The average household size was 3.07. There were 12,366 [[family (U.S. Census)|families]] (75.6% of all households); the average family size was 3.44.

In the city, the age distribution was 24.6% under 18, 10.3% from 18 to 24, 27.6% from 25 to 44, 24.9% from 45 to 64, and 12.6% were 65 or older. The median age was 36.0 years. For every 100 females, there were 97.0 males. For every 100 females 18 and over, there were 93.7 males.

The 16,872 housing units had an average density of {{convert|2,563.2|/mi2|/km2|disp=preunit|units&nbsp;|units|}}, of which 10,681 (65.3%) were owner-occupied and 5,684 (34.7%) were occupied by renters. The homeowner vacancy rate was 0.8%; the rental vacancy rate was 4.7%. About 62.9% of the population lived in owner-occupied housing units and 36.5% lived in rental housing units.

The [[median household income]] was $75,693, with 12.2% of the population living below the federal poverty line.<ref name="census" />

=== 2000 ===
At the 2000 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> there were 46,488 people, 15,037 households and 11,683 families residing in the city. The [[population density]] was {{convert|7,051.3|/mi2|/km2|disp=preunit|people&nbsp;|people|}}. The 15,326 housing units had an average density of {{convert|2,324.6|/mi2|/km2|disp=preunit|units&nbsp;|units|}}. The racial makeup was 67.76% White, 1.77% African American, 0.83% Native American, 11.16% Asian, 0.18% Pacific Islander, and 13.58% from two or more races. Hispanic or Latino residents of any race were 31.10% of the population.

Of the 15,037 households, 37.9% had children under 18 living with them, 61.5% were married couples living together, 50.2% had a female householder with no husband present, and 22.3% were not families. About 16.0% of all households were made up of individuals, and 4.9% had someone living alone who was 65 or older. The average household size was 3.07, and the average family size was 3.42.

The age distribution was 27.0% under 18, 9.5% from 18 to 24, 32.0% from 25 to 44, 22.4% from 45 to 64, and 9.1% were 65 or older. The median age was 33 years. For every 100 females, there were 98.2 males. For every 100 females 18 and over, there were 96.0 males.

The median household income was $62,803 and the median family income was $68,976. These figures had risen to $77,496 and $83,674, respectively, in a 2007 estimate.<ref>{{cite web |title=Fact Sheet: Placentia city, California: 2006–2008 |publisher=United States Census Bureau |url=http://factfinder.census.gov/servlet/ACSSAFFFacts?_event=Search&geo_id=16000US0650916&_geoContext=01000US%7C04000US06%7C16000US0650916&_street=&_county=placentia&_cityTown=placentia&_state=04000US06&_zip=&_lang=en&_sse=on&ActiveGeoDiv=geoSelect&_useEV=&pctxt=fph&pgsl=160&_submenuId=factsheet_1&ds_name=ACS_2007_3YR_SAFF&_ci_nbr=null&qr_name=null&reg=null%3Anull&_keyword=&_industry= |access-date=August 26, 2010 |archive-url=https://archive.today/20200211181056/http://factfinder.census.gov/servlet/ACSSAFFFacts?_event=Search&geo_id=16000US0650916&_geoContext=01000US%7C04000US06%7C16000US0650916&_street=&_county=placentia&_cityTown=placentia&_state=04000US06&_zip=&_lang=en&_sse=on&ActiveGeoDiv=geoSelect&_useEV=&pctxt=fph&pgsl=160&_submenuId=factsheet_1&ds_name=ACS_2007_3YR_SAFF&_ci_nbr=null&qr_name=null&reg=null:null&_keyword=&_industry= |archive-date=February 11, 2020 |url-status=dead }}</ref> Males had a median income of $46,956 and females $34,184. The [[per capita income]] was $23,843. About 5.7% of families and 8.7% of the population were below the [[poverty line]], including 12.2% of those under age 18 and 5.7% of those 65 or over.