How a Texas county became a unique crossroads of history, water, and political change

Countries & Cities · Published 15 October 2026 Swipe more like this →

In short: Grayson County, Texas, sits on the Oklahoma border, defined by the Red River and Lake Texoma. From its origins as a frontier settlement to its role in the Civil War and the development of modern infrastructure, this region has navigated complex social shifts, economic booms, and significant environmental transformations.

Established in 1846 and named for Peter Wagener Grayson, the county was originally inhabited by Caddo groups like the Tonkawa and Kichai. Early settlement was anchored by trading posts along the Red River, such as Preston Bend. By the 1850s, the area gained prominence through the Preston Road trail and the Butterfield Overland Mail route, which helped integrate the region into broader trade networks. However, the mid-19th century was marked by deep internal divisions; during the American Civil War, residents famously voted against secession, though the area later saw the tragic violence of the Great Hanging at Gainesville in nearby Cooke County.

The late 19th century brought a period of rapid growth driven by the arrival of railroads in 1872, which spurred the founding of towns like Denison and Van Alstyne. This era solidified cotton as the primary commodity, though the county also faced natural disasters, such as the 1896 F5 tornado that devastated Sherman. The 20th century introduced further volatility, including the 1930 Sherman Riot, which resulted in the destruction of the 1876 courthouse and the death of George Hughes. Despite these challenges, the county continued to evolve, notably through the construction of the Denison Dam in the 1930s and 1940s, which created Lake Texoma.

Today, Grayson County serves as a distinct part of the Sherman-Denison metropolitan area. Its landscape is nearly 5% water, and it maintains unique local regulations, such as being the only Texas county where deer hunting is restricted exclusively to bows. Politically, the region has shifted significantly over the last century; once a competitive area, it has become a Republican stronghold, having not supported a Democratic presidential candidate since 1976. With a population of 135,543 as of the 2020 census, the county balances its rural heritage with an increasingly urbanized demographic, reflecting the broader patterns of growth and transition seen across North Texas.

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