Lost Mountain Middle School

Located at 700 Old Mountain Rd NW, in Kennesaw, Georgia, Lost Mountain Middle School is a reasonably sized junior high that caters to 979 students (grades 6 through 8), part of Cobb County. Enrollment runs roughly 28% above the state mean of about 763.

Across the 110 schools in Cobb County (105,738 students total), Lost Mountain Middle School accounts for its share of the district's footprint.

In terms of who attends, Lost Mountain Middle School records that White students make up the majority at 57%; the rest reads as 22% Black, 10% Hispanic, 6% Asian, 5% multiracial. By comparison, Cobb County as a whole is about 49% White, so the school skews visibly more White than its surroundings.

On the income-and-resources front, Lost Mountain Middle School logs 61 full-time-equivalent teachers, putting the student-to-teacher ratio at about 16.2:1. The state averages around 14.1:1, so this campus is higher than the state norm typical. An estimated 22% of students are eligible for free or reduced-price lunch, a number frequently used as a low-income enrollment indicator. By comparison, Cobb County runs at roughly 53%, so the school's eligibility rate is below the surrounding baseline.

With demographic context factored in, Lost Mountain Middle School tracks the demographic baseline. The model predicts 66.0% given the school's FRL share; actual proficiency is 69.7%.

Across the wider county, ACS estimates for Cobb County put median household income runs about $102,738, 51% of adults hold a bachelor's degree or higher, and the poverty rate sits near 6%. Lost Mountain Middle School is one of 129 public schools in Cobb County (combined enrollment of about 116,609 students).

The closest other public school is Harrison High School, roughly 0.4 miles away. Within five miles, there are 8 other public schools. Ranking that nearby cluster on reported proficiency puts Lost Mountain Middle School at 3rd of 9; the average score across the group is 63.7%.

The school occupies a commuter-belt site.

Trend over the last 7 years. Looking back 7 years, enrollment at Lost Mountain Middle School has shrank 10%, going from 1,092 students in 2018 to 979 in 2025. The White share of enrollment decreased from 69% to 57% over that span. Class-load math has fell: from 17.8:1 in 2018 to 16.2:1 in 2025.

In the discussion threads here, the page collects discussion, questions, and updates around classroom updates, athletics, and weather closures. Members of the school community can share what they know.