Collin County
Origin of the Name
Collin County was named after Collin McKinney (1766–1861), one of the authors of the Texas Declaration of Independence and the oldest signatory of the document.
Collin County
County Details
County Website Visit
County Seat McKinney
Established 1846
Population 1,064,465
Median Age 37.6
Land Area 841.26 sq mi
Water Area 44.61 sq mi
Total Area 885.87 sq mi
Percent Urban 93.85%
Percent Rural 6.15%
Latitude, Longitude 33.1795° N, 96.4930° W