COUNTY ORGANIZED:  1809

COUNTY NAMED FOR:   American Revolutionary War officer Joseph Warren.

COUNTY SEAT NAMED FOR:: In 1790, the Spanish founded a military outpost on the site, which they called Fort Nogales (nogales meaning "walnut trees"). When the Americans took possession in 1798 following the American Revolutionary War and a treaty with Spain, they changed the name to Walnut Hills. The small village was incorporated in 1825 as Vicksburg, named after Newitt Vick, a Methodist minister who had established a Protestant mission on the site.

COURTHOUSES:: Three: 1825, 1858, and 1939

STANDING: Two: 1858 structure has served as a museum since 1947, and 1939 modern art deco building.