Collin County, Texas

Collin County, Texas
County
Collin County
The Collin County Courthouse in McKinney
Flag Seal
Location in the U.S. state of Texas
Texas's location in the U.S.
Founded	1846
Named for	Collin McKinney
Seat	McKinney
Largest city	Plano
Area
• Total	886 sq mi (2,295 km2)
• Land	841 sq mi (2,178 km2)
• Water	45 sq mi (117 km2), 5.1%
Population (est.)
• (2015)	914,127
• Density	1,053/sq mi (407/km²)
Congressional districts	3rd, 4th, 32nd
Time zone	Central: UTC-6/-5
Website	www.co.collin.tx.us

Collin County is a county located in the U.S. state of Texas. As of the 2010 United States Census, the county's population was 782,341, making it the seventh-most populous county in Texas and the 63rd-largest county by population in the United States. Its county seat is McKinney.

Collin County is part of the Dallas-Fort Worth-Arlington, Texas Metropolitan Statistical Area. A small portion of the city of Dallas is located in the county.

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 a total 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.

As of the census of 2000, there were 491,675 people, 181,970 households, and 132,292 families residing in the county. The population density was 580 people per square mile (224/km²). There were 194,892 housing units at an average density of 230 per square mile (89/km²). The racial 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 of any race.