Lassiter High School
Marietta, GA · High School · Grades 9-12
Lassiter High School is a high school in Marietta, GA with 1,932 students enrolled and a 68% proficiency rate. Part of Cobb County. NCES data from the U.S. Department of Education.
Get Lassiter High School's new scores when they post
We'll email you the moment Lassiter High School changes. No spam — only real updates.
About This School
Lassiter High School is a high school located in Marietta, Georgia. The school serves 1,932 students in grades 9-12. The student-to-teacher ratio is 18.1:1.
According to EDFacts assessment data, 68% of students meet grade-level proficiency standards in combined math and reading. The school reports a 84% graduation rate.
9% of students qualify for free or reduced-price lunch.
Lassiter High School is part of the Cobb County in Georgia.
How This School Compares
Lassiter High School has 1,932 students enrolled, making it larger than the average school in Cobb County (970 students). Its 68% proficiency rate is 15 percentage points above the district average of 53%. Compared to the Georgia state average of 44%, the school performs 24 points higher.
Frequently Asked Questions
Lassiter High School has 1,932 students enrolled in grades 9-12. The student-to-teacher ratio is 18.1:1.
According to EDFacts data, 68% of students at Lassiter High School meet grade-level proficiency standards in combined math and reading assessments.
Lassiter High School has a 84% graduation rate, measuring the percentage of students who graduate within four years.
Lassiter High School is part of the Cobb County in Marietta, Georgia. You can view all schools in this district on the district page.
All data on this page comes from the National Center for Education Statistics (NCES) Common Core of Data and EDFacts assessment results. These are official federal datasets published by the U.S. Department of Education.
School profiles are built from NCES directory data and EDFacts assessment results. Proficiency rates reflect combined math and reading performance. Graduation rates are reported for high schools with available data.
For this entity, the underlying data on this page comes from NCES Common Core of Data and EDFacts. The breakdown above is the federal record; the paragraphs below add the per-entity context that makes the headline numbers usable for a real decision rather than just a data lookup.
The methodology behind every numeric value on this page is publicly documented on the NCES Common Core of Data and EDFacts portal and described in detail on this site’s methodology page. Refresh cadence varies by underlying series; the page surfaces the as-of date for each number so readers can trace any figure back to the source release.
For readers using this page as a decision input, the related-entity pages elsewhere on the site provide the comparison set. The most useful comparison for this entity is typically a peer within U.S. public schools and districts with similar size, similar exposure, or similar geography — not the national-level summary alone.
Source: NCES Common Core of Data, 2026.