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Collin County, Texas facts for kids

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Collin County
Collin County
The Collin County Courthouse in McKinney
The Collin County Courthouse in McKinney
Flag of Collin County
Official seal of Collin County
Map of Texas highlighting Collin County
Location within the U.S. state of Texas
Map of the United States highlighting Texas
Texas's location within the U.S.
Country  United States
State  Texas
Founded 1846
Named for Collin McKinney
Seat McKinney
Largest city Plano
 • Total 886 sq mi (2,290 km2)
 • Land 841 sq mi (2,180 km2)
 • Water 45 sq mi (120 km2)  5.1%%
 • Total 1,064,465 Increase
 • Density 1,265/sq mi (488/km2)
Time zone UTC−6 (Central)
 • Summer (DST) UTC−5 (CDT)
Congressional districts 3rd, 4th, 32nd

Collin County is located in the U.S. state of Texas. It is part of the Dallas-Fort Worth-Arlington metropolitan statistical area, and a small portion of the city of Dallas is in the county. At the 2020 United States census, the county's population is 1,064,465, making it the sixth-most populous county in Texas and the 43rd-largest county by population in the United States. Its county seat is McKinney.


Both the county and the county seat were named after Collin McKinney (1766-1861), one of the five men who drafted the Texas Declaration of Independence and the oldest of the 59 men who signed it.


According to the U.S. Census Bureau, the county has an area of 886 square miles (2,290 km2), of which 841 square miles (2,180 km2) is land and 45 square miles (120 km2) (5.1%) is covered by water.


Major highways

  • Texas 5.svg State Highway 5
  • Texas 78.svg State Highway 78
  • Texas 289.svg State Highway 289
  • Texas 121.svg Toll Texas SRT new.svg State Highway 121 / Sam Rayburn Tollway

Adjacent counties


Historical population
Census Pop.
1850 1,950
1860 9,264 375.1%
1870 14,013 51.3%
1880 25,983 85.4%
1890 36,736 41.4%
1900 50,087 36.3%
1910 49,021 −2.1%
1920 49,609 1.2%
1930 46,180 −6.9%
1940 47,190 2.2%
1950 41,692 −11.7%
1960 41,247 −1.1%
1970 66,920 62.2%
1980 144,576 116.0%
1990 264,036 82.6%
2000 491,675 86.2%
2010 782,341 59.1%
2020 1,064,465 36.1%
U.S. Decennial Census
1850–2010 2010–2019

2020 census

Collin County, Texas - Demographic Profile
(NH = Non-Hispanic)
Race / Ethnicity Pop 2010 Pop 2020 % 2010 % 2020
White alone (NH) 493,492 542,472 63.08% 50.96%
Black or African American alone (NH) 64,715 108,100 8.27% 10.16%
Native American or Alaska Native alone (NH) 3,278 3,874 0.42% 0.36%
Asian alone (NH) 87,276 188,365 11.16% 17.70%
Pacific Islander alone (NH) 387 613 0.05% 0.06%
Some Other Race alone (NH) 1,364 4,910 0.17% 0.46%
Mixed Race/Multi-Racial (NH) 16,475 46,973 2.11% 4.41%
Hispanic or Latino (any race) 115,354 169,158 14.74% 15.89%
Total 782,341 1,064,465 100.00% 100.00%

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 can be of any race.

Race and ethnicity

At the 2000 census, the racial and ethnic makeup of the county was 81.39% White, 4.79% Black or African American, 0.47% Native American, 6.92% Asian, 0.05% Pacific Islander, 4.26% from other races, and 2.11% from two or more races; 10.27% of the population were Hispanic or Latino American of any race. In 2019, the American Community Survey estimated its non-Hispanic white population declined to 55%, reflecting a national demographic trend of diversification. The Black or African American population grew to 10%, Asian Americans made up 16% of the population, and Hispanic or Latino Americans increased to 16% of the total population in 2019; multiracial Americans made up an estimated 2% of the county population. The largest European ancestry groups from 2014 to 2019 were Germans, English Americans, and Irish and Italian Americans.


Christianity has historically been the predominant religious affiliation among the county's residents. According to the 2020 Public Religion Research Institute study, non-Christian religions are present and have been growing due to conversions and immigration; among the non-Christian population, 3% were Hindu, 2% Muslim and 2% Jewish.


Collin County Parks and Open Spaces


Cities (multiple counties)



Census-designated place

Other unincorporated communities

Historical communities

Ghost towns


K-12 education

The following school districts lie entirely within Collin County:

  • Allen Independent School District
  • Anna Independent School District
  • Farmersville Independent School District
  • Lovejoy Independent School District
  • McKinney Independent School District
  • Melissa Independent School District
  • Plano Independent School District
  • Princeton Independent School District
  • Wylie Independent School District

The following districts lie partly within the county:

  • Bland Independent School District (very small part only)
  • Blue Ridge Independent School District
  • Celina Independent School District
  • Community Independent School District
  • Frisco Independent School District
  • Leonard Independent School District (very small part only)
  • Prosper Independent School District
  • Royse City Independent School District
  • Trenton Independent School District (very small part only)
  • Van Alstyne Independent School District (very small part only)
  • Whitewright Independent School District (very small part only)

In the 1990s Plano ISD received many non-Hispanic white families leaving urban areas. From circa 1997 and 2015 the number of non-Hispanic white children in K-12 schools in the county increased by 40,000 as part of a trend of white flight and suburbanization by non-Hispanic white families; however the same number of Plano ISD in particular decreased by 10,000 in that period.

Colleges and universities

Collin College opened its first campus on Highway 380 in McKinney in 1985. The college has grown to seven campuses/locations—two in McKinney and two in Plano and as well as Frisco, Allen, Rockwall, Wylie, Farmersville, and Celina. Dallas Baptist University also has an extension site in Frisco, DBU Frisco, as well as the University of North Texas's extension side, UNT Frisco. The majority of the University of Texas at Dallas campus in Richardson, Texas lies within Collin County.

Notable people

Main Article: People from Collin County, TX

  • Griff Barnett (1884-1958) Actor born in Blue Ridge, TX
  • Josh Blaylock (Born 1990) Actor and Photographer born in Plano, TX
  • Samuel Bogart (1797-1861)
  • Casey Dick (Born 1986) Football player born in Lucas, TX
  • Russell E. Dickenson (1923-2008) Park Ranger born in Melissa, TX
  • Julie Doyle (Born 1996) Soccer player for Sky Blue FC (NWSL) born in Fairview, TX
  • Devin Duvernay (Born 1997) Football player for Baltimore Ravens born in Sachse, TX
  • King Fisher (1853-1884) Texas rancher and gunfighter born in Collin County, TX
  • James R. Gough (1860-1916) Texas State Senators born in Collin County, TX
  • Frank Shelby Groner (1877-1943) Lawyer, pastor, and educator born near Weston, TX
  • Aubrey Otis Hampton (1900-1955) Radiologist born in Copeville, TX
  • Warren Glenn Harding Sr. (1921-2005) Texas State Treasurer born in Princeton, TX
  • Jimmie C. Holland (1928-2017) Founder of the field of psycho-oncology, born in Nevada, TX
  • Sam Johnson (1930-2020) Politician who represented Collin County and Texas's 3rd District in US House of Representatives
  • Kyler Murray (Born 1997) Football player for Arizona Cardinals from Allen, TX
  • James W. Throckmorton (1825-1894) 12th Governor of Texas, lived and is buried in McKinney, TX.

See also

Kids robot.svg In Spanish: Condado de Collin para niños

National Hispanic Heritage Month on Kiddle
Outstanding Hispanic athletes
Mary Joe Fernández
Carlos Bocanegra
Dara Torres
Maya DiRado
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