Area Code 678

Georgia (GA) • Atlanta, Marietta, Decatur, Alpharetta, Gainesville, Lawrenceville, Carrollton, Conyers • Eastern Time (ET)

What Stands Out

•Coverage: 6.4M people across 212 ZIP codes.
•Overlapping area codes: 470, 943.
•Major cities: Atlanta, Marietta, Decatur.

Spotlight: Coverage

Snapshot highlights for area code 678.

Income

76th

Home values

78th

Poverty rate

53rd

Area Code Basics

Primary State

Georgia (GA)

States Served

Georgia (GA)

Major Cities

Atlanta, Marietta, Decatur, Alpharetta, Gainesville, Lawrenceville, Carrollton, Conyers

Time Zone(s)

Eastern Time (ET)

Est. Population

6.4M

ZIP Codes

212

Data accuracy & methodology

This report aggregates 2020–2024 ACS 5-year estimates and geographic overlays for orientation. Area-code service areas can cross ZIP/state boundaries and change over time; verify official assignments with NANPA for critical use.