Editing Fairfax County, Virginia (section)

===2020 census===

{{US Census population
|1790= 12320
|1800= 13317
|1810= 13111
|1820= 11404
|1830= 9204
|1840= 9370
|1850= 10682
|1860= 11834
|1870= 12952
|1880= 16025
|1890= 16655
|1900= 18580
|1910= 20536
|1920= 21943
|1930= 25264
|1940= 40929
|1950= 98557
|1960= 275002
|1970= 455021
|1980= 596901
|1990= 818584
|2000= 969749
|2010= 1081726
|2020= 1150309
|estref=
|align-fn=center
|footnote=U.S. Decennial Census<ref name="DecennialCensus">{{cite web|url=https://www.census.gov/prod/www/decennial.html|title=Census of Population and Housing from 1790-2000|publisher=[[US Census Bureau]]|access-date=January 24, 2022}}</ref><br />1790–1960<ref>{{cite web|url=http://mapserver.lib.virginia.edu/|title=Historical Census Browser|publisher=University of Virginia Library|access-date=January 2, 2014|archive-date=August 11, 2012|archive-url=https://web.archive.org/web/20120811110448/http://mapserver.lib.virginia.edu/|url-status=dead}}</ref> 1900–1990<ref>{{cite web|url=https://www.census.gov/population/cencounts/va190090.txt|title=Population of Counties by Decennial Census: 1900 to 1990|publisher=United States Census Bureau|access-date=January 2, 2014}}</ref><br />1990–2000<ref>{{cite web|url=https://www.census.gov/population/www/cen2000/briefs/phc-t4/tables/tab02.pdf |archive-url=https://ghostarchive.org/archive/20221009/https://www.census.gov/population/www/cen2000/briefs/phc-t4/tables/tab02.pdf |archive-date=October 9, 2022 |url-status=live|title=Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000|publisher=United States Census Bureau|access-date=January 2, 2014}}</ref> 2010<ref name=2010CensusP2/> 2020<ref name=2020CensusP2/>
}}

Of the households, 55.5% were married couple families, 15.9% were a male family householder with no spouse, and 23.0% were a female family householder with no spouse. The average family household had 3.25 people.<ref name=":1">{{Cite web |title=Fairfax County, Virginia |url=https://data.census.gov/profile/Fairfax_County,_Virginia?g=050XX00US51059 |access-date=January 27, 2024 |website=data.census.gov}}</ref>

The median age was 39.4, 22.6% of people were under the age of 18, and 15.1% were 65 years of age or older. The largest ancestry is the 10.1% who had [[English Americans|English ancestry]], 37.8% spoke a language other than [[English language|English]] at home, and 30.7% were born outside the United States, 63.4% of whom were [[Naturalized citizen of the United States|naturalized citizens]].<ref name=":1" />

The median income for a household in the county was $145,164, and the median income for a family was $174,085. 7.5% of the population were [[Veteran#United States|military veterans]], and 65.5% had a [[Bachelor's degree|bachelors degree]] or [[Higher degree|higher]]. In the county 5.6% of the population was below the [[poverty line]], including 5.6% of those under age 18 and 5.7% of those age 65 or over, with 7.2% of the population without [[Health insurance in the United States|health insurance]].<ref name=":1" />
{| class="wikitable"  style="text-align:center;"
|+'''Fairfax County, Virginia – 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 1980<ref name=1980CensusP2>{{Cite web|title=1980 census of population.|url=https://www2.census.gov/prod2/decennial/documents/1980/1980censusofpopu80148uns_bw.pdf|website=[[United States Census Bureau]]}}</ref>
!Pop 2000<ref name=2000CensusP2>{{Cite web|title=P004 Hispanic or Latino, and Not Hispanic or Latino by Race – Fairfax County, Virginia|url=https://data.census.gov/table/DECENNIALSF12000.P004?q=p004&g=050XX00US24033,51059|website=[[United States Census Bureau]]}}</ref>
!Pop 2010<ref name=2010CensusP2>{{Cite web|title=P2 HHispanic or Latino, and Not Hispanic or Latino by Race – 2010: DEC Redistricting Data (PL 94-171) - Fairfax County, Virginia|url=https://data.census.gov/cedsci/table?q=p2&g=0500000US51059&tid=DECENNIALPL2010.P2|website=[[United States Census Bureau]]}}</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) - Fairfax County, Virginia|url=https://data.census.gov/cedsci/table?q=p2&g=0500000US51059&tid=DECENNIALPL2020.P2|website=[[United States Census Bureau]]}}</ref>
!% 1980
!% 2000
!% 2010
!{{partial|% 2020}}
|-
|[[Non-Hispanic or Latino whites|White]] alone (NH)
|514,330
|624,296
|590,622
|style='background: #ffffe6; |542,001
|{{Percentage|514330|596,901|2}}
|{{percentage|624,296|969749|2}}
|54.60%
|style='background: #ffffe6; |47.12%
|-
|[[Non-Hispanic or Latino African Americans|Black or African American]] alone (NH)
|34,618
|81,287
|96,078
|style='background: #ffffe6; |108,339
|{{Percentage|34618|596,901|2}}
|{{percentage|81287|969749|2}}
|8.88%
|style='background: #ffffe6; |9.42%
|-
|[[Native Americans in the United States|Native American]] or [[Alaska Native]] alone (NH)
|1,235{{efn|Includes all people who gave "American Indian", "Eskimo", or "Aleut" as their race, regardless of Hispanic identity.}}
|1,834
|1,843
|style='background: #ffffe6; |1,437
|{{Percentage|1,235|596,901|2}}
|{{percentage|1834|969749|2}}
|0.17%
|style='background: #ffffe6; |0.12%
|-
|[[Asian Americans|Asian]] alone (NH)
|22,463{{efn|Includes all people who gave "Japanese", "Chinese", "Filipino", "Korean", "Asian Indian", or "Vietnamese" as their race, regardless of Hispanic identity.}}
|125,585
|188,737
|style='background: #ffffe6; |233,858
|{{Percentage|22,463|596,901|2}}
|{{percentage|125585|969749|2}}
|17.45%
|style='background: #ffffe6; |20.33%
|-
|[[Native Hawaiian]] or [[Pacific Islander Americans|Pacific Islander]] alone (NH)
|262{{efn|Includes all people who gave "Hawaiian", "Guamanian", or "Samoan" as their race, regardless of Hispanic identity.}}
|616
|779
|style='background: #ffffe6; |772
|{{Percentage|262|596,901|2}}
|{{percentage|616|969749|2}}
|0.07%
|style='background: #ffffe6; |0.07%
|-
|[[Race and ethnicity in the United States census|Other race]] alone (NH)
|
|2,473
|3,359
|style='background: #ffffe6; |7,046
|
|{{percentage|2473|969749|2}}
|0.31%
|style='background: #ffffe6; |0.61%
|-
|[[Multiracial Americans|Mixed race or Multiracial]] (NH)
|N/A
|26,700
|31,826
|style='background: #ffffe6; |57,622
|N/A
|{{percentage|26700|969749|2}}
|2.94%
|style='background: #ffffe6; |5.01%
|-
|[[Hispanic and Latino Americans|Hispanic or Latino]] (any race)
|19,535
|106,958
|168,482
|style='background: #ffffe6; |199,234
|{{Percentage|19535|596,901|2}}
|{{percentage|106958|969749|2}}
|15.58%
|style='background: #ffffe6; |17.32%
|-
|'''Total'''
|'''596,901'''
|'''969,749'''
|'''1,081,726'''
|style='background: #ffffe6; |'''1,150,309'''
|'''100.00%'''
|'''100.00%'''
|'''100.00%'''
|style='background: #ffffe6; |'''100.00%'''
|}