5 Reasons Why Should you Buy Prime Rib at Costco in 2024

Costco is a one-stop shop where you can purchase prime rib at a reasonable price for your next dinner party or holiday feast. Costco offers prime rib selections of fresh meat and frozen options in various sizes. 

At Costco, you can get the best boneless Rastelli and Kirkland Signature prime rib roast, either 7 lbs or 12 lbs. Their meat is always fresh when thawed and is available in several sizes—6.2, 7 & 12 lbs so that you can get the perfect size for your family. 

Not only that the meat by both brands is luscious, but their prices are unbeatable!

So, how good is Costco prime rib? 

These findings and facts about Costco’s prime rib roast can help you with a confident purchase.

1. You can Get Angus and Regular Prime Rib at Costco.

At Costco, you don’t find many options when looking for prime rib. It’s only sourced from Rastelli or Costco-owned Kirkland Signature. The prime rib roast is a USDA Choice Black Angus from the Rastelli brand and regular beef rib from Kirkland. It’s available in cuts of 6.2 lbs, 7 lbs, and 12 lbs, making it an excellent option for feeding mid-sized to large groups.

2. Costco Sells High-Quality Angus beef Prime Rib.

Costco is well-known for procuring high-quality meats from trustworthy sources and employing strict quality control procedures to guarantee the best product. The prime rib beef by Rastelli is hand-trimmed and features a thick layer of marbling, which complements the flavor and tenderness of the meat. Similarly, Kirkland’s beef meat also comes from reliable sources. 

Many customers who have bought prime rib from Costco have recommended the meat’s quality and richness. Costco’s record for providing high-quality products at affordable prices has made it the favorite place for meat and other food items.

The quality of prime rib can be affected by factors such as how the meat is stored, processed, and roasted. However, when handled and cooked correctly, Costco Prime Ribs turn out delicious for those wishing to prepare a memorable meal.

3. The Name “Prime Rib” can be confusing but it’s Worth Buying. 

The prime rib at Costco is a Choice grade beef cut, not a prime grade, no matter if it’s Rastelli or Kirkland’s. Many customers mistake it as prime grade and feel disappointed with the low marbling.

Does it compromise at taste?

Not at all. It’s equally delicious and moist.

4. Costco Prime Rib Roast is Cheap, Cheaper, and Cheapest.

For you, it’ll be pleasing to know that the prime rib sold at Costco is the cheapest when compared with any other store. You can save up to $10 per lb by getting prime rib at Costco. For example, at Amazon, you can get the same quality Angus prime rib for $4 per lb, while at Costco, it barely costs you about $25-28.

Costco sells USDA choice, Angus boneless prime rib from Kirkland Signature and Rastelli brands. 

  • Best of all, the 7lb Rastelli prime rib is a great value at just under $28.57 per pound–the full package of 7 lbs will cost you $199.99 in total. 
  • Unlike a 7 lb prime rib cut, the 12 lb prime rib roast is cheaper by 2-3 dollars. Costco’s Choice Black Angus Prime Rib Roast is a premium, USDA-certified beef roast available at Costco for just $25 per pound. The entire package includes 12 lbs, which will cost you $299.99. It’s pretty convenient to prepare, so it’s a great meal. 
  • Then comes the cheapest choice which costs you only $17-1 per lb. It’s Kirkland Signature USDA Choice Beef Ribeye Roast Boneless. You can get it from Costco via Instacart.

5. You can Buy Prime Rib at Costco around the Year.

Even though prime rib is frequently served during holiday gatherings, Costco sells it all year. It’s ideal for celebratory occasions, family get-togethers, or even a pleasant dinner at home.


How does Costco prime rib taste when smoked?

When you smoke Costco prime rib, the meat can get a deep, smoky flavor that’s hard to replicate with other cooking methods. The smoke can infuse the meat with a rich taste that pairs perfectly with the natural flavors of the beef.

Depending on the wood you use for smoking, you can also get some additional flavors that can complement the beef. For example, hickory wood can add a sweet, slightly nutty flavor, while mesquite can give a more intense, almost spicy flavor.

Overall, smoking a prime rib can impart a truly delicious and luxurious meal. The meat should be incredibly tender, flavorful, and juicy, with a smoky, savory taste that’s hard to resist. Whether you’re a seasoned pit master or a newbie to smoking, smoked prime rib is definitely worth trying!

How do I determine what size prime rib to purchase?

Analyze the quantity of the prime rib by the number of people you intend to serve and the amount of leftover meat you desire. As a general guideline, 1 pound of beef per person is appropriate if you’re serving prime rib roast as a main dish with few sides.

Does Costco prime rib come pre-seasoned?

Costco prime rib is not pre-seasoned, but only frozen raw meat. You can season the meat following your recipe and enjoy it on your dinner table.

In how many ways can I cook Costco prime rib?

Please don’t follow Costco instructions to cook prime ribs; those are just basic guidelines for newbies. There are many ways to cook prime rib, depending on personal preferences and desired outcomes. Here are a few examples:

  1. Roasting: This is the most traditional method of cooking prime rib. The meat is roasted in the oven at a high temperature to sear the outside and then cooked at a lower temperature to finish cooking to the desired level of doneness.
  2. Grilling: Prime rib can also be grilled over direct heat or indirectly on a grill or smoker. This method gives the meat a smoky flavor and charred exterior.
  3. Sous Vide: This method involves cooking the prime rib in a temperature-controlled water bath, resulting in a perfectly cooked, tender, and juicy roast.
  4. Reverse searing: This method involves cooking the prime rib low and slow, then searing the outside at high heat to create a flavorful crust.
  5. Smoking: Prime rib can be smoked in a smoker for several hours, which imparts a unique smoky flavor and tenderizes the meat.

These are just a few examples of the many ways you can cook prime rib. The method you choose will depend on your personal preferences, equipment, and desired outcome.

Which grade of prime rib beef can I get at Costco?

The USDA Choice and USDA Prime grades of beef are available at Costco. Yet, the prime rib is of USDA choice grade available at Costco.

How long will Costco prime rib last in the fridge?

You can store cooked prime rib in the refrigerator for up to 4 days. Although, you can place the raw rib in the fridge for up to 3-5 days.

Can I get the prime rib from Costco online?

Yes, Costco allows you to order prime rib and other culinary products online. You can order things online to get them to your doorstep.


Costco prime rib is a common pick for those seeking high-quality meat. Individual experiences may differ as with any product, and it’s always a good idea to check reviews and conduct research before buying a product.

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