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Storage units in Charleston County, SC - 58 listings with over 906 spaces

Prices start at just $22. See the latest Charleston County storage market trends

Not sure what size you need? See our size guide!

Not sure what size you need? See our size guide!

Need more options? Browse storage units in other South Carolina cities!

Browse storage units in all South Carolina cities.

Average storage prices in Charleston County (updated May 2026)

With prices starting at $22, you’ll find everything from compact locker-sized units to large spaces for cars, RVs or household goods.

Prices typically vary depending on the unit size and whether it’s climate controlled.

Unit SizeNon-Climate-Controlled UnitsClimate-Controlled Units
5x5$44$77
5x10$73$120
10x10$130$188
10x15$178$259
10x20$232$365
10x30$346$516
20x30$532$545
Average (all sizes)$219$296

Note: Street rate data provided by Yardi Matrix.

Cheap storage units in Charleston County

38% of local storage listings are priced below the city’s average, giving you plenty of budget-friendly options.

  • Small storage units (perfect for boxes, seasonal items, or a studio apartment) start as low as $22
  • Medium storage units (great for 1- to 2-bedroom homes) are available from just $57
  • Large storage units (ideal for multi-room moves or business inventory) start around $69
Cheap storage units
5x5 $22/mo

MyPlace Self Storage - 2455 Ashley River Road, Charleston, SC 29414

Cheap storage units Cheap storage units
10x10 $57/mo

CubeSmart Self Storage - 3665 Bohicket Road, Johns Island, SC 29455

Cheap storage units Cheap storage units Cheap storage units
10x20 $69/mo

Public Storage - 445 Faison Road, Mount Pleasant, SC 29466

Types of storage available in Charleston County

Standard Non-Climate Controlled Units: Non-climate-controlled storage units are suitable for items that aren't sensitive to humidity or temperature fluctuations. These units may be located either inside a building or outdoors – outdoor units often feature drive-up access for convenient loading and unloading.

In Charleston County, you can rent a non-climate-controlled storage unit for an average of $219 per month.

Climate-Controlled Units: Climate-controlled units maintain consistent temperature and humidity levels year-round, protecting everything from electronics and wooden furniture to antiques, artwork, books and important documents.

You’ll find 49 self storage facilities in Charleston County offering climate-controlled units in a variety of sizes and price points.

The average rate for a 10'x10' climate-controlled storage unit in Charleston County is around $188 per month — a smart investment to ensure your valuables stay protected.

Vehicle Storage Options: Perfect for outdoor adventurers, seasonal travelers and classic car collectors, specialized storage spaces offer a secure place to store cars, SUVs, vans, RVs, boats and other types of vehicles.

Top storage facilities in Charleston County

The top self storage providers in the area include Extra Space Storage at 2118 Heriot Street, Extra Space Storage at 810 Saint Andrews Blvd, and Extra Space Storage at 1426 North Highway 17, These facilities feature some of the most highly reviewed storage units in Charleston County.

  • Customers consistently appreciate locations with strong security measures, such as 24-hour video surveillance and electronic gate access.
  • Climate-controlled units are also valued for protecting sensitive items from temperature fluctuations.
  • Additionally, drive-up access and extended operating hours are frequently praised for the convenience they offer.

How to choose the right storage unit in Charleston County

Here are a few simple things to keep in mind when choosing a storage unit in Charleston County:

  • Think about the weather
  • If you’re storing things like electronics, wooden furniture or photos, go with a climate-controlled unit to keep them safe.
  • Check when you can get in
  • Need late-night access? Some places offer 24/7 entry, while others stick to regular business hours. Make sure you pick a facility whose opening hours work for your schedule.
  • Make sure it feels secure
  • Look for places with gated access, security cameras and someone on-site. It’s your stuff — you want it protected.
  • Shop around for deals
  • Prices can vary a lot. It’s worth checking a few places – some even offer discounts for your first month.
  • See what others are saying
  • Online reviews can give you the real scoop on customer service, cleanliness, and how a facility treats its renters.
  • Don’t forget about insurance
  • Most storage places require it. Some offer it themselves, or you might already be covered through your renters or homeowners insurance.

Take a few minutes to check these things off your list, and you’ll be set up with a storage unit that actually works for you — without overpaying or guessing.

Frequently asked questions

How safe is self storage?

Most self storage facilities have some level of security, often including surveillance cameras and gated access. Popular security features include video surveillance and secure entry systems. Know that the facility comes with a strong security setup can give you confidence that your belongings are safe until you need them again.

Methodology Note: Self storage data - including pricing and unit information - is analyzed and curated by RentCafe Self Storage. Statements reflect local market coverage and storage availability trends within the area.

Data sources: RentCafe Self Storage Research, Yardi Matrix, U.S. Census.