The South here is the Census Bureau's South region: Alabama, Arkansas, Delaware, the District of Columbia, Florida, Georgia, Kentucky, Louisiana, Maryland, Mississippi, North Carolina, Oklahoma, South Carolina, Tennessee, Texas, Virginia and West Virginia. It takes in all the states usually counted as the Southeast.

Verizon is the clear outdoor leader in 10 of 17 (16 states plus DC). County by county, Verizon leads in the most (844 of 1,394).

Every state in the South

In a car, AT&T leads in 12 and Verizon leads in 1, and 4 have no clear leader.

StateAT&TT-MobileVerizonOutdoor leaderIn-car leader
Alabama81.9%57.6%87.6%Verizon (AT&T close behind)AT&TView →
Arkansas76.6%56.2%88.6%VerizonAT&T (Verizon close behind)View →
Delaware78.1%73.7%99.4%No clear leader on land (21.7% water)No clear leader on land (21.7% water)View →
District of Columbia99.2%99.7%100%Tie (within 5 points)Tie (within 5 points)View →
Florida69.7%58.1%90.5%Verizon (AT&T close behind)No clear leader on land (24.9% water)View →
Georgia84.5%62.5%96.2%VerizonAT&T (Verizon close behind)View →
Kentucky74%60.8%71.2%AT&T (Verizon close behind)AT&TView →
Louisiana80.9%62.4%79.1%No clear leader on land (17.5% water)AT&T (Verizon close behind)View →
Maryland75.2%71.9%95.4%No clear leader on land (21.7% water)No clear leader on land (21.7% water)View →
Mississippi85.3%64.5%78.2%AT&T (Verizon close behind)AT&TView →
North Carolina76.5%68%89.7%Verizon (AT&T close behind)AT&T (Verizon close behind)View →
Oklahoma84.9%83.1%79%No clear leader on land (1.9% water)AT&TView →
South Carolina87.7%72.5%96%Verizon (AT&T close behind)AT&TView →
Tennessee79.4%63.1%81.1%Verizon (AT&T close behind)AT&TView →
Texas84.1%72.3%86.8%Verizon (AT&T close behind)AT&TView →
Virginia66.4%59.4%88.1%VerizonVerizon (AT&T close behind)View →
West Virginia49.4%41.9%51.4%Verizon (AT&T close behind)AT&TView →

Source: FCC National Broadband Map, carrier filings as of December 31, 2025. Share of area where each carrier reports 4G LTE or 5G to a phone outdoors. Carrier-reported, not measured.

The South Atlantic, the East South Central states and the West South Central states

The South Atlantic (Delaware, District of Columbia, Florida, Georgia, Maryland, North Carolina, South Carolina, Virginia and West Virginia): Verizon leads 413 of 570 counties, 65 run out of coverage, thinnest Pocahontas County, WV at 15.8%.

The East South Central states (Alabama, Kentucky, Mississippi and Tennessee): Verizon leads 173 of 355 counties, 60 run out of coverage, thinnest Jackson County, TN at 48.4%.

The West South Central states (Arkansas, Louisiana, Oklahoma and Texas): Verizon leads 258 of 469 counties, 25 run out of coverage, thinnest Brewster County, TX at 34.4%.

DivisionCountiesAT&T leadsT-Mobile leadsVerizon leadsRuns outThinnest county
The South Atlantic57030941365Pocahontas County, WV
The East South Central states355143217360Jackson County, TN
The West South Central states46999425825Brewster County, TX

County by county

1,394 counties where all three carriers file; in 150 even the best carrier leaves 25%+ of the land uncovered.

CarrierCounties led, outdoorsCounties led, in a car
Verizon844214
AT&T2721,032
T-Mobile1516
No clear leader263132

The least-covered counties in the South

The three thinnest in each Census division, by share of land with 4G from any carrier; counties a fifth or more water are left out.

County4G, any carrierAT&TT-MobileVerizonLeader
Pocahontas County, WV15.8%16.5%4.8%2.7%AT&T
Highland County, VA22.8%10%7.4%21.5%Verizon
Webster County, WV26.7%22.5%14.1%1.9%AT&T
Jackson County, TN48.4%34.8%10.4%43.5%Verizon
Hancock County, TN51.4%33.1%20%45.7%Verizon
McCreary County, KY59.1%32.7%23.9%45.9%Verizon
Brewster County, TX34.4%24.9%16.8%22.7%AT&T (Verizon close behind)
Presidio County, TX52.2%49.1%26.3%33.1%AT&T
Terrell County, TX53.8%39.4%41.1%15%T-Mobile (AT&T close behind)

5G across the South

5G at 35/3 Mbps, any carrier: District of Columbia 98.6%, West Virginia 32.4%, the US 39.4%.

State5G 7/1 Mbps5G 35/3 Mbps4G LTE, any carrier
Alabama64.2%46.7%95.1%View →
Arkansas67.7%49.7%91.9%View →
Delaware89.8%80.6%99.9%View →
District of Columbia99.6%98.6%100%View →
Florida76.4%57.5%91.9%View →
Georgia71.8%52.8%97.5%View →
Kentucky71.4%53.8%89.1%View →
Louisiana74.1%55.4%95.3%View →
Maryland81%66.8%98.7%View →
Mississippi72.4%47.4%95.9%View →
North Carolina66.7%49.9%94.8%View →
Oklahoma83.1%68.3%97.8%View →
South Carolina74.9%57.5%98%View →
Tennessee64.7%50.2%88.9%View →
Texas75.5%61.9%93.3%View →
Virginia58.9%43.1%91.4%View →
West Virginia43.9%32.4%66.7%View →