COUNTY ORGANIZED: 1873

COUNTY NAMED FOR: Same as the town of Rockwall.

COUNTY SEATS: One - Rockwall

COUNTY SEAT NAMED FOR: Several farmers were digging a well in 1851 when they discovered a subterranean rock wall or diker that crossed the county and occasionally appeared at ground level. Although scientific analysis indicated that the wall is a natural geological formation, folk tales persist that it was built by prehistoric natives. When it was surveyed and laid out in 1854 the town of Rockwall was named for the curious rock formation.

COURTHOUSES: Four - 1878, 1891, 1940, and 2011

STANDING: Two -

• 1941 Modern building is now a museum
• 2011 Modern design with central dome