South Carolina propane price: $2.22 per gallon (residential average, estimate). Week of Oct 12, 2026. U.S. average: $2.54. Source: Sample data (placeholder; EIA feed not yet connected). Updated Oct 14, 2026. SAMPLE DATA, NOT REAL PRICES.
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South Carolina Propane Prices: Tank Fill and Swap Costs Near You
Average residential propane in South Carolina is $2.22/gal (-0.01 vs last week). Use it to estimate a home tank fill, then compare with cylinder swap/exchange prices nearby. Sample data
South Carolina 12-week price history
Sample data, not real prices. Placeholder estimates for preview only. Live EIA data is not connected yet.
| Week of | Price / gallon |
|---|---|
| Oct 12, 2026 | $2.22 |
| Oct 5, 2026 | $2.23 |
| Sep 28, 2026 | $2.21 |
| Sep 21, 2026 | $2.19 |
| Sep 14, 2026 | $2.20 |
| Sep 7, 2026 | $2.18 |
| Aug 31, 2026 | $2.16 |
| Aug 24, 2026 | $2.17 |
| Aug 17, 2026 | $2.15 |
| Aug 10, 2026 | $2.13 |
| Aug 3, 2026 | $2.14 |
| Jul 27, 2026 | $2.12 |
| Jul 20, 2026 | $2.10 |
Propane locations in South Carolina
Sample listings, not real businesses. Real dealer and exchange listings coming soon.
| Name | City | Service area | Exchange | Fill | Service type | Exchange price (with tank to trade in) | Exchange price (no tank to trade) | Fill price per gallon | Source |
|---|---|---|---|---|---|---|---|---|---|
| Sample Dealer 1 – Columbia | Columbia, SC | Approx. 30-mile radius of Columbia | Yes | Yes | Exchange and fill | $22.99 (sample) | $49.99 (sample) | $3.59/gal (sample) | Sample data |
| Sample Exchange Spot 2 – Columbia | Columbia, SC | Columbia metro (walk-in cylinder exchange) | Yes | No | Exchange only | $23.99 (sample) | $50.99 (sample) | Unknown | Sample data |
How to lower your propane cost
How much does it cost to fill a propane tank in South Carolina?
Multiply the per-gallon price by the gallons you need. A 500-gallon home tank is filled to about 80% (400 gallons), so at the shown average price that is roughly 400 x the price. Delivery fees and minimums vary by dealer.
Is a tank swap (exchange) cheaper than a refill?
Usually not per gallon. A 20 lb exchange cylinder often holds about 15 lb (about 3.5 gallons), so refilling at a dealer is typically cheaper per gallon. Exchange is faster and more convenient.
When is propane cheapest?
Prices usually dip in late spring and summer. Filling or pre-buying a season contract before October can lower your cost.
How can I lower my propane cost?
Compare dealers, ask about budget or pre-buy plans, own your tank so you can shop around, and improve insulation and thermostat settings.