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Home internet in Columbia, SC

Updated October 2026 · By the PlansByZip editorial team · How we make money

In Columbia, 76% of homes use cable, fiber or DSL and 9.5% get by on a phone plan alone. What that means when you order at a Columbia address, plus a ZIP check against our call list.

  • 88% of Columbia households are connected; 12% have no subscription (U.S. Census Bureau).
  • Wired broadband: 76% of homes, 1.6 points above the South Carolina figure.
  • Call line covers 6 Columbia ZIP codes: 29206, 29209, 29211, 29212, 29225, 29229.

What the Census says about Columbia

HouseholdsColumbiaSouth CarolinaUnited States
With an internet subscription88%91%92.2%
Wired broadband (cable, fiber or DSL)76%74.4%76.3%
Cellular data plan only9.5%13%11.9%
Satellite internet6.2%6.5%6.6%
No internet subscription12%9%7.8%

City: U.S. Census Bureau, American Community Survey 2023 5-year estimates, table S2801 (Columbia city, South Carolina, 51,784 households). State: 2023 1-year estimates. US: household-weighted average of the states.

What to expect at a Columbia address

Cable, fiber or DSL reaches 76% of homes in Columbia, which is 1.6 points above South Carolina as a whole (74.4%) and about the same as the US average (76.3%). Among the 2 South Carolina cities on this site, Columbia ranks 2nd for its wired share.

A typical city picture: cable on most streets, fiber on some, and a growing number of homes choosing 5G home internet instead. Ask for the exact address, because Columbia blocks differ.

Phone-only households make up 9.5% of the city, 3.5 points below the statewide 13%; 12% have no internet subscription at all, 3 points above South Carolina overall (9%).

Satellite accounts for 6.2% of Columbia households and 12% have no subscription, which works out to roughly 6,214 homes. Compared with South Carolina overall (9% unconnected), Columbia is 3 points worse than the state average.

Where the call line covers Columbia

The agents who answer our number can check addresses in these 6 Columbia ZIP codes: 29206, 29209, 29211, 29212, 29225, 29229. Type your ZIP in the box; if it is on the list the call button stays live. That is 13% of all the South Carolina ZIP codes on our list and the 1st largest group of any South Carolina city.

6 Columbia ZIP codes are on the call list.

Ordering internet in Columbia

  1. Give the exact street address, not just "Columbia". Lines change block by block.
  2. Decide the speed first with the speed guide, then listen to prices.
  3. Ask what the monthly price becomes after the promotion, and what the equipment fee adds.
  4. Book the install a week or two ahead if you are moving; see the moving checklist.

Statewide figures and the full list of covered South Carolina cities are on the South Carolina page.

Common questions

How many homes in Columbia have no internet?

12% of Columbia households had no internet subscription in the 2023 five-year Census estimate, against 9% for South Carolina and 7.8% nationally. Another 9.5% rely on a phone plan alone.

Can I get fiber in Columbia?

On some streets. The Census counts cable, fiber and DSL together (76% of Columbia homes), and fiber is only part of that. Give the agent the exact address; if fiber is not there yet, cable is usually next, then 5G home internet.

Which Columbia ZIP codes does the call line cover?

6 of them: 29206, 29209, 29211, 29212, 29225, 29229. The ZIP box on this page confirms yours in one step; a covered ZIP keeps the call button active.

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