
The name goes back to the founding of Texas itself. Both the city and Collin County are named for Collin McKinney — a surveyor and pioneer who was one of the five men who drafted, and a signer of, the Texas Declaration of Independence in 1836, and the oldest of all the signers. He never actually lived in the town that carries his name, settling instead farther east near the Red River. Collin County was created in 1846; in 1848 the county seat moved here, and the next year William Davis donated 120 acres for the townsite.
Downtown filled with the families who ran it. The Heard brothers kept an 1880s mercantile and opera house on the square; Stephen Heard's restored Victorian mansion is now the Heard-Craig Center for the Arts, and John Heard's daughter Bessie turned her love of wildlife into the Heard Natural Science Museum and Wildlife Sanctuary, with trails and live animals on the edge of town. The 1911 post office is now the Collin County History Museum.
Why People Visit McKinney
Visitors choose McKinney for its handsome square, approachable museums, and easy walkability. It balances small-city heritage with everyday outdoor spaces, from the courthouse and Chestnut Square to the Heard sanctuary and the park trails. Families and day-trippers find a friendly layout and an unhurried pace, with year-round appeal in its parks, paths, and public spaces — and the historic square always at the center of it.