In 2002, the
Revere C-3 School District ended its high school and began sending its students to
Clark County High School. As of April 2012, there were some people in the Revere C-3 district using addresses from children's grandparents to send them to the K-8 program in the Clark County R-I district, even though Missouri law did not allow for school districts to enroll students from other districts without formal agreements. The Revere C-3 district merged into the Clark County School District in summer 2012. In 2002, the
Wyaconda C-1 School District ended its high school and began sending some of its students to Clark County High. That district dissolved in 2008, and most of its students went to the Clark County school district. Ritchie Kracht began his term as superintendent circa 2006. In 2025 he was to take the superintendent post at
Hannibal Public Schools. In 2024 there was a school board meeting about the possibility of closing Running Fox Elementary School. Lyndel Whittle will become the superintendent effective July 1, 2025. ==Schools==