- Milford Elementary School — 0.8 mi · Grades PK–5 · 389 students
- Smitha Middle School — 1.5 mi · Grades 6–8 · 866 students
- Osborne High School — 1.6 mi · Grades 9–12 · 2,790 students
- Birney Elementary School — 1.7 mi · Grades PK–5 · 725 students
- Hollydale Elementary School — 1.7 mi · Grades PK–5 · 526 students
- LaBelle Elementary School — 2.1 mi · Grades PK–5 · 339 students
- Cheatham Hill Elementary School — 2.2 mi · Grades PK–5 · 1,021 students
- Dowell Elementary School — 2.5 mi · Grades PK–5 · 898 students
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| Metric | Cobb County School District | National Average | Comparison |
|---|---|---|---|
| Student Enrollment | 106,703 | 3,544 | Much larger than avg |
| Number of Schools | 110 | 7 | Varies by district |
| Per-Pupil Spending | $16,151/yr | $17,619/yr | ≈ Near avg |
| District Type | Public School District | Public District | — |
| Overall Rating | 9/10 — Excellent | — | Above average |
🔢 Show the math behind this rating
Ranked against 219 rated districts in GA → 83rd percentile → 9/10.
Source: Georgia Dept. of Education Milestones EOG, grades 3–8 ELA & Math, 2024–25 school year. Full methodology →
About Cobb County School District
Cobb County School District is the public school district assigned to zip code 30008 in Marietta, Georgia. Serving students from Pre-K – 12th, this district is the primary public education system for families living in and around zip code 30008. The sections below cover the district’s resources, scale, rating, and everything families need to know about enrollment and school assignment.
Understanding the 9/10 Rating
With a rating of 9/10 (top-tier), Cobb County School District ranks among Georgia’s top-tier-rated school systems. Our ratings are based on state assessment results — the share of students scoring proficient or above in reading and math, as reported in Georgia’s Milestones EOG grades 3–8 ELA & Math assessments (2024–25 school year). We average each district’s reading and math proficiency, then rank it against other districts in the same state to produce a 1–10 score. Because Georgia is compared only against itself, the rating reflects how this district performs relative to its in-state peers.
Cobb County School District ranks among the highest-performing public school districts in Georgia on state assessments, with reading and math proficiency rates in roughly the top 10–20% statewide. Homes in and around zip code 30008 often carry a measurable premium relative to neighboring areas served by lower-rated districts. Families moving here for academic strength will find a district whose students test well above the state norm. Even within top-rated districts, individual school performance varies — confirm your specific school assignments directly with the district.
Enrollment for Families in Zip Code 30008
Children in zip code 30008 are assigned to Cobb County School District for public school enrollment, covering grades Pre-K – 12th. School assignments are address-specific — your elementary, middle, and high school placements depend on your exact street address within zip code 30008, not just your neighborhood. Two homes on opposite ends of the same zip code may be assigned to different schools within the same district.
To confirm your specific school assignments, contact Cobb County School District at (770)426-3300 or visit the district’s official website. Typical enrollment documents include proof of address, a government-issued birth certificate, immunization records, and any existing school records or IEP documentation. If your child has an IEP or 504 plan, bring that documentation to enrollment — Georgia districts are required to continue services within a reasonable period. Fall enrollment windows typically open in late winter or early spring; contact the district for exact dates and required steps.
School Districts and Home Values in Marietta
For families considering a purchase in the Marietta area, district assignment matters financially. Because Cobb County School District serves zip code 30008, homes in and around zip code 30008 often carry a measurable premium over comparable properties in adjacent lower-rated districts. District boundaries are address-specific — verify the exact district assignment for any property you’re seriously considering rather than assuming based on the neighborhood. A single block can place two adjacent homes in different districts with different ratings and different annual property tax implications.
Use the property tax estimator on this page to calculate estimated annual tax obligations based on your target purchase price. In Georgia, property taxes are a primary funding source for public schools — your tax payments directly support Cobb County School District programs and staff. Understanding both district quality and the associated tax burden is essential financial due diligence before committing to any home in zip code 30008.
Data Sources and Accuracy
All district information on this page is sourced from the NCES Common Core of Data (CCD) 2024–2025, the U.S. Department of Education’s annual census of all public school districts — the same dataset used by researchers, journalists, and policymakers to analyze American public education. District boundaries, school assignments and phone numbers are updated annually when NCES publishes new data, typically in spring; per-pupil spending comes from the US Census Bureau's Annual Survey of School System Finances, released about two years after the fiscal year it covers. Always verify your specific school assignment and enrollment requirements directly with Cobb County School District before making any housing or enrollment decision based on zip code 30008 data.