Metro Atlanta here is Fulton, DeKalb, Cobb, Gwinnett and Clayton counties, the five core counties of the metro area. Wider definitions add many more counties, among them Cherokee, Forsyth and Henry; they are not in this guide.
No carrier is the clear outdoor leader in any of the 5 counties: all three report 4G LTE or 5G outdoors over 95.5–100% of every county's area. In a moving car, AT&T leads in all 5 counties. In the 2 metro Atlanta cities among the 300 largest in the US, no carrier is the clear leader in either of them.
Every metro Atlanta county, outdoors
| County | 4G, any carrier | AT&T | T-Mobile | Verizon | Water | Outdoor leader |
|---|---|---|---|---|---|---|
| Clayton County, GA | 100% | 99.8% | 99.2% | 100% | 1.8% | Tie (within 5 points) |
| Cobb County, GA | 100% | 99.8% | 99.2% | 100% | 1.3% | Tie (within 5 points) |
| DeKalb County, GA | 100% | 99.8% | 98.4% | 100% | 1.3% | Tie (within 5 points) |
| Fulton County, GA | 100% | 98.4% | 95.5% | 100% | 1.5% | Tie (within 5 points) |
| Gwinnett County, GA | 100% | 99.8% | 99.3% | 100% | 1.4% | Tie (within 5 points) |
Reading the county figures
Fulton County, DeKalb County, Cobb County, Gwinnett County and Clayton County: all three carriers within 5 points of each other outdoors.
The largest metro Atlanta cities
The 2 metro Atlanta cities among the 300 largest in the US, biggest first. Outdoors, no carrier is the clear leader in either city; in a car, AT&T leads in both cities.
| City | Population | AT&T | T-Mobile | Verizon | Water | Leader | |
|---|---|---|---|---|---|---|---|
| Atlanta | 520,070 | 99.6% | 99.7% | 100% | 0.8% | Tie (within 5 points) | View → |
| South Fulton | 112,003 | 99.6% | 97.3% | 100% | 1.4% | Tie (within 5 points) | View → |
Population: 2024 estimates.
Town by town
52 towns, each the main town of a ZIP code, the large cities included. Outdoors, Verizon leads in 1 of the 52 towns, and 51 have no clear leader. In a car, AT&T leads in 43 and Verizon leads in 5 of the 52 towns, and 4 have no clear leader.
| Carrier | Towns led, outdoors | Towns led, in a car |
|---|---|---|
| Verizon | 1 | 5 |
| AT&T | 0 | 43 |
| T-Mobile | 0 | 0 |
| No clear leader | 51 | 4 |
Where one carrier pulls clear in metro Atlanta
Widest in-car margin first, 12 of 48.
| Town | AT&T, in a car | T-Mobile, in a car | Verizon, in a car | In-car leader | Outdoor leader |
|---|---|---|---|---|---|
| Irondale | 98.8% | 36.1% | 62.6% | AT&T | Tie (within 5 points) |
| Milton | 91% | 50.9% | 75.4% | AT&T | Tie (within 5 points) |
| Brookhaven | 99.4% | 59.7% | 91.6% | AT&T | Tie (within 5 points) |
| Dunwoody | 99.4% | 59.8% | 82.7% | AT&T | Tie (within 5 points) |
| Johns Creek | 97.5% | 59% | 85.3% | AT&T | Tie (within 5 points) |
| Decatur | 100% | 63.6% | 90.9% | AT&T | Tie (within 5 points) |
| Vinings | 95.3% | 61.2% | 96.5% | Verizon (AT&T close behind) | Tie (within 5 points) |
| Roswell | 97.3% | 63.2% | 87% | AT&T | Tie (within 5 points) |
| Snellville | 98.9% | 65.6% | 91.3% | AT&T | Tie (within 5 points) |
| Union City | 96.9% | 63.8% | 90.2% | AT&T | Tie (within 5 points) |
| Alpharetta | 99.6% | 66.5% | 94.4% | AT&T (Verizon close behind) | Tie (within 5 points) |
| North Druid Hills | 96.5% | 63.5% | 90.4% | AT&T | Tie (within 5 points) |
In a moving car
| County | AT&T, in a car | T-Mobile, in a car | Verizon, in a car | In-car leader |
|---|---|---|---|---|
| Clayton County, GA | 89.1% | 70.4% | 83.7% | AT&T (Verizon close behind) |
| Cobb County, GA | 93.1% | 66.4% | 84.1% | AT&T |
| DeKalb County, GA | 95% | 67.5% | 81.8% | AT&T |
| Fulton County, GA | 88.1% | 61.2% | 77.8% | AT&T |
| Gwinnett County, GA | 93.1% | 67.8% | 80.5% | AT&T |
5G in metro Atlanta
| County | 5G 7/1 Mbps | 5G 35/3 Mbps | 4G LTE, any carrier |
|---|---|---|---|
| Clayton County, GA | 99.6% | 95.3% | 100% |
| Cobb County, GA | 99.9% | 97.1% | 100% |
| DeKalb County, GA | 99.8% | 96.1% | 100% |
| Fulton County, GA | 97.4% | 90.3% | 100% |
| Gwinnett County, GA | 99.8% | 96.2% | 100% |