Charleston · 22 locations
Public Storage unit prices in Charleston, SC
Most Charleston branches advertise several 10x10 units at once, and the second one costs 29% more than the first at the same address. The $38 headline is the entry price, not the shelf.
Charleston by size, 10x30 the dearest
| Size | Sq ft | Locations | Cheapest | Typical | Dearest | Typical spread |
|---|---|---|---|---|---|---|
| 5x5 | 25 | 18 | $14 | $27 | $72 | 135% |
| 5x10 | 50 | 22 | $24 | $46 | $90 | 94% |
| 5x15 | 75 | 12 | $34 | $54 | $110 | 121% |
| 10x10 | 100 | 22 | $38 | $78 | $206 | 104% |
| 10x15 | 150 | 21 | $58 | $103 | $197 | 113% |
| 10x20 | 200 | 20 | $71 | $128 | $273 | 114% |
| 10x25 | 250 | 15 | $50 | $182 | $378 | 131% |
| 10x30 | 300 | 15 | $66 | $225 | $566 | 123% |
Cheapest branch, size by size
- 5x5 $15 at 2 branches, 2363 Ashley River Road among them
- 5x10 3065 Bees Ferry Rd, at $24 of 22
- 5x15 3065 Bees Ferry Rd, at $37 of 12
- 10x10 616 Johnnie Dodds Bl, Mt Pleasant, at $38 of 22
- 10x15 445 Faison Rd, Mt Pleasant, at $60 of 21
- 10x20 616 Johnnie Dodds Bl, Mt Pleasant, at $85 of 20
- 10x25 616 Johnnie Dodds Bl, Mt Pleasant, at $50 of 15
- 10x30 616 Johnnie Dodds Bl, Mt Pleasant, at $66 of 15
Charleston is the cheapest market near it
| Market | Distance | Median 10×10 | vs Charleston |
|---|---|---|---|
| Hilton Head Island, SC | 94 km | $92 | +18% |
Where these numbers come from. 145 advertised prices read from Public
Storage's own published listings across 22 locations, last checked
2026-08-27.
Online rate vs regular rate. Every listing publishes two figures. Measured across thousands of observations, the regular rate is 1.5× the online rate at the median, with 88% inside 1% of that and none outside 1.40–1.60×. That is a pricing rule, not a second quote. The online rate is the promotional price for booking on the web; the regular rate is what the unit reverts to. Budget on the regular rate. Comparisons here hold the basis constant, so the gap between locations is real either way.
These are advertised rates for new rentals, not quotes — Public Storage states prices are not guaranteed and they move with availability. Insurance, admin fees and limited-time offers are not included.
How this is measured. The sampling, the percentile method and the rules for withholding a figure are set out on the methodology page. The figures are published as CC BY 4.0 and may be reused with attribution.
Cite this. Storage Price Index (2026). Public Storage unit prices in Charleston, SC — from $14. Read 2026-08-27. CC BY 4.0. https://storagepriceindex.com/storage/charleston-sc/
Online rate vs regular rate. Every listing publishes two figures. Measured across thousands of observations, the regular rate is 1.5× the online rate at the median, with 88% inside 1% of that and none outside 1.40–1.60×. That is a pricing rule, not a second quote. The online rate is the promotional price for booking on the web; the regular rate is what the unit reverts to. Budget on the regular rate. Comparisons here hold the basis constant, so the gap between locations is real either way.
These are advertised rates for new rentals, not quotes — Public Storage states prices are not guaranteed and they move with availability. Insurance, admin fees and limited-time offers are not included.
How this is measured. The sampling, the percentile method and the rules for withholding a figure are set out on the methodology page. The figures are published as CC BY 4.0 and may be reused with attribution.
Cite this. Storage Price Index (2026). Public Storage unit prices in Charleston, SC — from $14. Read 2026-08-27. CC BY 4.0. https://storagepriceindex.com/storage/charleston-sc/