Editing Williamson County, Tennessee (section)

==Demographics==
The county population decreased from a high in 1880 over most of the next several decades, due in large part to African Americans moving to towns and cities for work, or out of the area altogether. The oppression of [[Jim Crow]] and related violence and the decline in the need for farm labor in the early 20th century, as mechanization was adopted, resulted in many blacks leaving Tennessee for industrial cities of the North and Midwest in the [[Great Migration (African American)|Great Migration]].

The total 1880 county population was not surpassed until 1970. Combined with the rapid increase in white newcomers in new suburban developments in the county since the late 20th century, African Americans now constitute a small minority.

{{US Census population
| 1800 = 2868
| 1810 = 13153
| 1820 = 20640
| 1830 = 26638
| 1840 = 27006
| 1850 = 27201
| 1860 = 23827
| 1870 = 25328
| 1880 = 28313
| 1890 = 26321
| 1900 = 26429
| 1910 = 24213
| 1920 = 23409
| 1930 = 22845
| 1940 = 25220
| 1950 = 24307
| 1960 = 25267
| 1970 = 34330
| 1980 = 58108
| 1990 = 81021
| 2000 = 126638
| 2010 = 183182
| 2020 = 247726
| estyear = 2023
| estimate = 264460
| estref = <ref name="USCensusEst2023">{{cite web|url=https://www2.census.gov/programs-surveys/popest/tables/2020-2023/counties/totals/co-est2023-pop.xlsx| title=Annual Estimates of the Resident Population for Counties: April 1, 2020 to July 1, 2023|publisher= United States Census Bureau|access-date=March 14, 2024}}</ref>
| align-fn = center
| footnote = U.S. Decennial Census<ref>{{cite web|url=https://www.census.gov/programs-surveys/decennial-census.html|title=U.S. Decennial Census|publisher=United States Census Bureau|access-date=April 14, 2015}}</ref><br />1790-1960<ref>{{cite web|url=http://mapserver.lib.virginia.edu|title=Historical Census Browser|publisher=University of Virginia Library|access-date=April 14, 2015}}</ref> 1900-1990<ref>{{cite web|url=https://www.census.gov/population/cencounts/tn190090.txt|title=Population of Counties by Decennial Census: 1900 to 1990|publisher=United States Census Bureau|editor-last=Forstall|editor-first=Richard L.|date=March 27, 1995|access-date=April 14, 2015}}</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|date=April 2, 2001|access-date=April 14, 2015}}</ref> 2010-2020<ref name="QF"/>
}}
{{Stack|[[Image:USA Williamson County, Tennessee.csv age pyramid.svg|thumb|left|Age pyramid Williamson County<ref>Based on [[2000 United States Census|2000 census]] data</ref>]]}}

===2020 census===
{| class="wikitable" style="text-align:right"
|+Williamson County racial composition<ref>{{Cite web|title=Explore Census Data|url=https://data.census.gov/cedsci/table?g=0500000US47187&tid=DECENNIALPL2020.P2|access-date=December 26, 2021|website=data.census.gov}}</ref>
!scope="col"| Race
!scope="col"| Number
!scope="col"| Percentage
|-
!scope="row"| [[White (U.S. Census)|White]] (non-Hispanic)
| 200,408
| 80.9%
|-
!scope="row"| [[African American (U.S. Census)|Black or African American]] (non-Hispanic)
| 9,709
| 3.92%
|-
!scope="row"| [[Native American (U.S. Census)|Native American]]
| 393
| 0.16%
|-
!scope="row"| [[Asian (U.S. Census)|Asian]]
| 12,879
| 5.2%
|-
!scope="row"| [[Pacific Islander (U.S. Census)|Pacific Islander]]
| 115
| 0.05%
|-
!scope="row"| [[Race (United States Census)|Other/Mixed]]
| 9,961
| 4.02%
|-
!scope="row"| [[Hispanic (U.S. Census)|Hispanic]] or [[Latino (U.S. Census)|Latino]]
| 14,261
| 5.76%
|}
As of the [[2020 United States census]], there were 247,726 people, 84,393 households, and 68,001 families residing in the county. The population increase of 64,544, or 35.2% over the 2010 figure of 183,182 residents, represents the largest net increase in the county's history.

===2010 census===
As of the [[2010 United States Census|census of 2010]],<ref>{{cite web|url=https://www.census.gov|title=U.S. Census website|author=<!--Not stated-->|website=[[United States Census Bureau]]|access-date=October 5, 2019}}</ref> there were 183,182 people, 64,886 households, and 51,242 households residing in the county. The population density was {{convert|314.21|/mi2|/km2|disp=preunit|persons&nbsp;|persons|}}. The housing unit density was {{convert|111.30|/mi2|/km2|disp=preunit|units&nbsp;|units|}}. The racial makeup of the county was 90.05% [[White Americans|White]], 4.34% [[African Americans|African American]], 3.01% [[Asian Americans|Asian]], 0.22% [[Native Americans in the United States|Native American]], 0.04% [[Pacific Islands Americans|Pacific Islander]], and 1.32% from [[Multiracial Americans|two or more races]]. Those of [[Hispanic and Latino Americans|Hispanic or Latino]] origins constituted 4.46% of the population. Williamson County is estimated to be the county in Tennessee with the highest percentage of Asian residents.

Of all of the households, 41.11% had children under the age of 18 living in them, 68.08% were [[marriage|married couples]] living together, 2.67% had a male householder with no wife present, 8.22% had a female householder with no husband present, and 21.03% were non-families. 17.73% of all households were made up of individuals, and 5.85% had someone living alone who was 65 years of age or older. The average household size was 2.81 and the average family size was 3.20.

The age distribution was 29.28% under the age of 18, 61.00% ages 18 to 64, and 9.72% age 65 and older. The median age was 38.5 years. 51.23% of the population were females and 48.77% were males.

===Economic data===
In 2006 it was the 17th-wealthiest county in the country according to the [[U.S. Census Bureau]], but the Council for Community and Economic Research ranked Williamson County as America's wealthiest county (1st) when the local [[cost of living]] was factored into the equation with median household income.<ref>[http://www.coli.org/COLIAdjustedMHI.asp Cost of Living Can Significantly Affect “Real” Median Household Income] {{webarchive|url=https://web.archive.org/web/20080702224956/http://www.coli.org/COLIAdjustedMHI.asp |date=July 2, 2008 }}, Council for Community and Economic Research website. Retrieved December 9, 2007.</ref> In 2010, Williamson County is listed 17th on the [[Forbes]] list of the 25 wealthiest counties in [[United States|America]].<ref>{{cite web|url=http://nashville.bizjournals.com/nashville/stories/2010/03/08/daily25.html |title=Forbes: Williamson 17th richest county - Nashville Business Journal |publisher=Nashville.bizjournals.com |date=March 10, 2010 |access-date=July 29, 2010}}</ref>

By 2006 Williamson County had a population of 160,781 representing 27.0% population growth since 2000.
The [[United States Census Bureau|census bureau]] lists Williamson as one of the 100 fastest-growing counties in the United States for the period 2000–2005.