| Clark County, WA (ISD) |
| Clark County, KS (ISD) |
| Clark County, IL (ISD) |
| Clark County, NV (ISD) |
| Clark County, ID (ISD) |
| Clark County District, ID (District) |
| Clark County Educational Service Center, OH (ISD) |
| Clark County School District, NV (District) |
| Clark County Schools, KY (District) |
| Clark Preparatory Academy, OH (PSA) |
| Clark School District, SD (District) |
| Clark Shawnee Local School District, OH (District) |
| Clark Township Public Schools, NJ (District) |
| Clark-Pleasant Com School Corp, IN (District) |
| Clarkdale-Jerome Elementary District, AZ (District) |
