Living in Marietta GA: Historic Square, Marietta City Schools, The Battery, and What Homes Cost in 2026

Most people driving through Marietta don't realize they're in one of Metro Atlanta's most historically significant cities — incorporated in 1852, county seat of Cobb County, with a genuine walkable downtown Square that most OTP suburbs can only wish for. But here's what buyers consistently get wrong: a Marietta mailing address does not mean Marietta City Schools. Most homes carrying Marietta addresses are in unincorporated Cobb County, served by CCSD — not the separate, independent Marietta City Schools district. Getting that distinction wrong is expensive. City of Marietta homes: median ~$435K–$441K. Historic Square-adjacent neighborhoods $450K–$850K+. Marietta City Schools: 8,600 students, 13 schools, 12:1 ratio, ranked 49th of 206 Georgia districts, led Metro Atlanta in student growth in 2025. Kennesaw Mountain National Battlefield Park on your doorstep. The Battery Atlanta 10 minutes south. Here's what you need to know.