How to Shop at Costco in South Carolina

What Costco is and how membership works

Costco is a membership-based warehouse store where you pay an annual fee to shop at lower per-unit prices than traditional grocery stores and retailers. You cannot enter a Costco warehouse or make purchases without an active membership card. The membership fee covers your access to the warehouse for one year, and you can renew it when it expires.

Costco operates five locations across South Carolina: Charleston, Columbia, Greenville, Hilton Head, and Myrtle Beach. Each warehouse stocks roughly 3,500 to 4,000 items—far fewer than a conventional supermarket—which means the store focuses on high-volume, popular products rather than offering every brand or variety. Items rotate seasonally, so what you find in January may not be there in July.

The warehouse model keeps prices lower because Costco buys in bulk directly from manufacturers, passes those savings to members, and operates with minimal staff and simple displays. You typically bag your own groceries and may encounter crowds during peak shopping hours (weekends and early mornings tend to be busiest).

Key Takeaways

• Costco membership costs between $60 and $130 per year depending on the membership tier you choose, and you must have a valid card to enter the warehouse.
• Five Costco locations operate in South Carolina: Charleston, Columbia, Greenville, Hilton Head, and Myrtle Beach.
• You can purchase a membership online at Costco.com, by phone, or in person at any warehouse location.
• Costco accepts cash, debit cards, credit cards (Costco Visa only for the best rewards), and digital payment methods at checkout.
• The warehouse stocks roughly 3,500 items that change seasonally, so products available one month may not be there the next.

Membership tiers and costs

Costco offers two main membership levels. The Gold Star membership costs $60 per year and gives you access to the warehouse, discounted gas at Costco gas stations, and a 2% cash back reward on most purchases (paid as an annual rebate). The Executive membership costs $130 per year and includes everything in Gold Star plus a higher cash back rate (up to 2% on most purchases, 3% on gas and travel), exclusive member discounts, and access to additional services like travel booking and insurance products.

Both memberships are individual—one card per person—though household members can be added to your account for a small additional fee. Your membership is valid at any Costco warehouse in the United States and most international locations. If you cancel your membership within the first year, Costco will refund your membership fee in full.

How to get a membership

You can purchase a Costco membership three ways: online at Costco.com, by calling Costco's membership department, or in person at any of the five South Carolina warehouses. Online and phone purchases are fastest if you already know which membership tier you want. In-person signup takes about 10 to 15 minutes and includes getting your membership card printed on the spot.

You will need a valid photo ID and a current mailing address. If you are purchasing an Executive membership, Costco may ask for additional information to verify your identity. Once your membership is active, you can shop immediately—either that day if you signed up in person, or within a few business days if you signed up online or by phone.

If you do not have a membership but want to visit, some Costco locations offer a one-day guest pass that allows a non-member to shop with a current member. Call your nearest South Carolina warehouse to ask whether they currently offer guest passes.

What you can buy and how prices compare

Costco sells groceries, household supplies, electronics, clothing, furniture, and seasonal items. The grocery section includes fresh produce, meat, dairy, and pantry staples, though the selection is smaller and more limited than a traditional supermarket. For example, you might find two or three brands of olive oil instead of twenty, and one size of milk instead of five.

Prices are typically 10 to 30 percent lower than conventional retailers for the same item, but you usually buy in larger quantities—a gallon of milk instead of a quart, a 24-pack of yogurt instead of a 4-pack. This works well for large households, families who cook frequently, or people with storage space. For single people or small households, bulk purchases may lead to waste if items spoil before you use them.

Costco's Kirkland Signature brand (Costco's private label) is generally priced lower than name brands and is available on everything from peanut butter to paper towels to clothing. Many members find Kirkland products comparable in quality to national brands.

Payment methods and the Costco Visa card

Costco accepts cash, debit cards, most major credit cards, and digital payment methods like Apple Pay and Google Pay. However, if you use a credit card, Costco strongly encourages the Costco Visa card because it earns cash back rewards on your purchases—2% on most items for Gold Star members, up to 3% on gas and travel for Executive members.

The Costco Visa is issued by Citi and has no annual fee. You can apply for one in the warehouse, online, or by phone. If you do not have a Costco Visa, you can still shop and pay with other methods, but you will not earn the cash back bonus. Your cash back reward is calculated annually and mailed to you as a Costco Cash certificate that you can spend in the warehouse or online.

Shopping tips for first-time visitors

Bring your membership card—you cannot enter without it. Arrive early in the morning or on a weekday if you prefer less crowded shopping. The warehouse does not have shopping carts at every entrance, so grab one as soon as you arrive; during busy times they run out quickly.

Costco's return policy is generous: you can return almost any item at any time if you are not satisfied, with or without a receipt. Exceptions are electronics (30-day limit) and some services. This means you can try a product and return it if it does not work for your household.

Prices change frequently and vary slightly between locations, so the price you see in Charleston may differ from Greenville. Costco does not publish a full price list online, so the best way to compare is to visit in person or call your local warehouse. Many items are marked with small colored tags that indicate whether the price is temporary or permanent.

Costco locations in South Carolina

The Charleston warehouse is located in West Ashley and serves the Lowcountry. The Columbia location is in the northeast part of the city. Greenville's warehouse is in the downtown area and serves the Upstate. Hilton Head has a warehouse on the main island, and Myrtle Beach's location serves the Grand Strand and surrounding areas.

Each warehouse has a gas station, pharmacy, and food court. Hours vary by location but typically run from 10 a.m. to 8:30 p.m. on weekdays and 9:30 a.m. to 6 p.m. on Sundays. Call ahead or check Costco.com to confirm hours for your nearest location, as they change seasonally and may be adjusted for holidays.

Frequently Asked Questions

Can I shop at Costco without a membership?

No, you must have an active membership card to enter the warehouse and make purchases. Some locations offer one-day guest passes for non-members who are shopping with a current member. Call your nearest South Carolina warehouse to ask if they have guest passes available.

What happens if my membership expires?

Once your membership expires, you cannot enter the warehouse or shop online until you renew it. You can renew your membership at any time by visiting a warehouse, calling Costco, or renewing online. If you renew within 30 days of expiration, you do not lose any benefits or rewards.

Is the Costco Visa card required to shop?

No, you can pay with cash, debit, or other credit cards. However, the Costco Visa earns cash back rewards that other payment methods do not, so it is worth considering if you shop frequently.

Do Costco prices include tax?

No, the prices displayed in the warehouse do not include South Carolina sales tax. Tax is added at checkout. Sales tax rates vary by county in South Carolina, typically ranging from 7 to 8.5 percent.

Can I return items I bought at Costco?

Yes, Costco has a very generous return policy. You can return almost any item at any time if you are not satisfied, with or without a receipt. Electronics have a 30-day return window. Bring the item and your membership card to the warehouse customer service desk.