The History of Rockwall, Texas
Rockwall is named for a wall nobody built. In the 1850s, farmers digging a well hit a long, straight formation of rock running underground across the area, and it looked so much like masonry that people argued for generations over whether ancient people had built it. Geologists say it's natural. The name stuck anyway, and it belongs to both the town and the smallest county in Texas.
The Wall and the Town (1848–1854)
The Boydstun family of Illinois were the first Anglo-American settlers here in the late 1840s, taking up land near the East Fork of the Trinity River when the area was still part of Kaufman County. Around 1852, well-diggers struck the formation that would name the place: a straight rock 'wall' running underground, surfacing here and there, so regular-looking that folk tales insisted prehistoric people had built it. Scientists have since ruled it a natural geological feature, but the mystery gave the town its identity. When the community was established on April 17, 1854, on land donated by Elijah Elgin, they named it Rockwall for the formation.
The Smallest County in Texas (1873)
Rockwall started as part of Kaufman County, but in 1873 residents carved out their own county — Rockwall County, with the town of Rockwall as its seat. It remains the smallest county in Texas by area, a distinction the town has worn with a kind of pride ever since. For most of its first century Rockwall was a small farm-trade county seat, its courthouse square anchoring a rural community east of Dallas, well outside the city's orbit.
Lake Ray Hubbard and the Boom (1970s–Today)
The reservoir made modern Rockwall. When Lake Ray Hubbard filled in on the East Fork, the county seat suddenly had waterfront, and as Dallas sprawled east across the lake, Rockwall became a fast-growing lakeside suburb. The Harbor district brought shops and restaurants to the water's edge, and subdivisions climbed the low hills above the lake. The tiny county that started with a buried wall became one of the more affluent and fastest-growing corners of the metro — still the smallest county in Texas, just a lot more crowded.
Timeline
1848
The Boydstun family become the first Anglo-American settlers near the East Fork of the Trinity.
1852
Well-diggers discover the underground rock formation that gives the town its name.
1854
The town of Rockwall is established on land donated by Elijah Elgin.
1873
Rockwall County is created from Kaufman County — the smallest county in Texas — with Rockwall as its seat.
Notable People
The Boydstun family
Illinois settlers who were the first Anglo-Americans in the area in the late 1840s, among those connected to the discovery of the rock wall.
FAQ: History of Rockwall
The name comes from a long, straight underground rock formation that well-diggers discovered in the early 1850s. It looked so much like a built wall that folk legends claimed prehistoric people made it, though geologists have determined it's a natural formation.
No. Despite persistent local legends that ancient people built it, scientists have determined the formation is a natural geological feature. The mystery of its origin nonetheless gave the town and county their name.
Yes. Rockwall County, formed in 1873 from Kaufman County with the town of Rockwall as its seat, is the smallest county in Texas by land area.
The filling of Lake Ray Hubbard gave Rockwall waterfront, and as Dallas expanded east across the lake, the old county seat became a desirable and fast-growing lakeside suburb, anchored by its Harbor entertainment district.
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