Our picks for South Carolina
Statewide carrier comparison
Best carriers by region
South Carolina-specific considerations
Charleston and Myrtle Beach congest seasonally; a high premium-data cap avoids slowdowns.
The coast is storm-prone — the carrier with the most resilient network matters in season.
The Blue Ridge foothills favor Verizon and AT&T for rural reach.
The Lowcountry interior thins between towns — Verizon and AT&T hold up best.
South Carolina plan FAQ
All three are strong in the metros and along the coast. Verizon and AT&T have the best reach in the Upstate and rural Lowcountry.
Excellent in Charleston, Columbia, and along the coast; weaker in the Upstate foothills and rural interior.
In the metros, Mint Mobile (~$15/mo) or Visible+ ($35/mo) give great service for far less than postpaid.
Yes, though summer crowds congest the Grand Strand — a plan with generous premium data helps.
South Carolina coverage by city
Drill into neighborhood-level speed and coverage for the metros we've mapped.
Bottom line
In Charleston, Columbia, and Greenville, buy on price — US Mobile, Visible+, or Mint win. For the Upstate foothills or the rural Lowcountry, Verizon or AT&T's reach is worth paying for.