Collin County, Texas

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.
Coordinates: 33°11′N 96°35′W / 33.18°N 96.58°W / 33.18; -96.58
Country United States
State Texas
Founded1846
Named forCollin McKinney
SeatMcKinney
Largest cityPlano
Area
 • Total886 sq mi (2,290 km2)
 • Land841 sq mi (2,180 km2)
 • Water45 sq mi (120 km2)  5.1%
Population
 (2020)
 • Total1,064,465
 • Estimate 
(2021)
1,109,462 Increase
 • Density1,200/sq mi (460/km2)
Time zoneUTC−6 (Central)
 • Summer (DST)UTC−5 (CDT)
Congressional districts3rd, 4th, 32nd
Websitewww.collincountytx.gov

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.[1] Its county seat is McKinney.[2]

  1. ^ "2020 Population and Housing State Data". United States Census Bureau. Archived from the original on August 12, 2021. Retrieved August 20, 2021.
  2. ^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.

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