| Mountain Heights Academy, UT (PSA) |
| Mountain Home District, ID (District) |
| Mountain Home School District, AR (District) |
| Mountain House Elementary, CA (District) |
| Mountain Institute Joint Technology Education District, AZ (District) |
| Mountain Iron-Buhl School District, MN (District) |
| Mountain Island Charter, NC (District) |
| Mountain Lake Public Schools, MN (District) |
| Mountain Lakes Board of Education, NJ (District) |
| Mountain Mahogany Community School, NM (PSA) |
| Mountain Oak Charter School Inc., AZ (PSA) |
| Mountain Pine School District, AR (District) |
| Mountain Rose Academy Inc., AZ (District) |
| Mountain School Inc., AZ (District) |
| Mountain Sunrise Academy, UT (PSA) |
