Clark County AR Historical Association top of page WELCOME! Clark County, Arkansas, was established over 200 years ago and enjoys a rich, colorful history. For more than fifty years, the Clark County Historical Association has sought to advance the discovery, preservation, and dissemination of knowledge about the county's past. We invite you to explore our site and see for yourself! Learn about Clark County's history Begin your research Tour the county's National Register of Historic Places properties Visit historical markers, monuments, and memorials Order books and other Clark County items Find out more about the CCHA Become a CCHA member/pay dues Upcoming CCHA Ev ents/Activities Meeting and Program Tuesday, May 5, 2026 12:00 Noon Historic Hollywood Methodist Church CLARK COUNTY BORDERS SINCE 1819 Clark County was created on December 15, 1818, as part of Missouri Territory. One of the five counties composing Arkansas Territory when it was established in 1819, Clark County included all or parts of at least fifteen counties in present-day Arkansas and parts of six counties in present-day Oklahoma. The county is named for Missouri territorial governor William Clark of the Lewis and Clark expedition. Click photos for details. bottom of page