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Your grocery store preferences are likely to change over time, and that’s at least in part because your grocery store needs will evolve.

When you were younger, you might have been fine with making a long drive to your favorite shop, and you might have been willing to pay top dollar for your favorite snacks. As a senior, however, you might prefer the convenience of grocery delivery and be more budget conscious. Vibes might become less important; pharmacy services could become a must.

In other words: When you reach your golden years, if you haven’t thought much about it, you should probably re-evaluate which grocery store chain is best for your needs. And I can help.

So, what is the best grocery chain for seniors? Read on as I compare three of the best-known grocers: Walmart, Sam’s Club, and Costco. I’ll evaluate all three across a variety of factors that are important to seniors. My hope is that this review will help you make the best decision for your grocery destination.

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Who Should Be Your Golden Years’ Grocer?


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You don’t necessarily need to choose one grocery store to use and forsake all others; it might be wise to shop at different chains for specific purposes. Still, if you’d prefer to have a lone go-to grocer, this breakdown should give you a sense of which store you might want to prioritize.

Today, I’m going to discuss the following factors you may want to consider:

  • Membership price
  • Delivery services
  • Pharmacy services
  • Number of locations
  • Selection
  • Mobility vehicles
  • Value for cost

For you personally, some of these factors may be more important than others. Your chosen grocery store should fit your needs. 

Membership Price


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While you optimally would reduce the number of memberships and subscriptions you keep in retirement, a grocery store membership could be well worth keeping if the value is right.

First, though, we’re going to focus on just the cost of getting in the door, as the value in those membership costs will come into play as we look at other categories.

  • Walmart: No cost. Any adult can walk into Walmart and start shopping. A membership isn’t required. However, some choose to enroll in Walmart+ for special perks and that costs $98/year.
  • Sam’s Club: $50/yr. (Club); $110/yr. (Plus). A Sam’s Club membership costs $50 annually for the Club tier or $110 for Plus. However, Sam’s Club offers senior discounts for new members: a 60% cut on Club’s price (so down to $20 per year) and a $50 discount on Plus (so, $60 per year).
  • Costco: $65/yr. (Gold Star); $130/yr. (Executive). Costco’s $65 and $130 annual costs for Gold Star and Executive memberships, respectively, are the same regardless of your age—the chain doesn’t offer senior discounts.

The winner? If you don’t care about membership perks, it’s hard to beat walking into Walmart for free. But if you’re open to the idea of a membership model, Sam’s Club is the most affordable regardless of your age, but it’s a particularly good deal for seniors.

Related: Seniors Can Save More With These 10 Discounted Memberships + Subscriptions

Delivery 


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Grocery delivery can be extremely useful for seniors. You might have mobility issues, struggle to carry heavy groceries, or not always have access to transportation. Whatever the reason, being able to order groceries straight to your home could be a major perk.

  • Walmart: Walmart grocery delivery without a membership requires you to pay a $9.95 delivery fee. A Walmart+ membership offers free, same-day delivery on grocery orders of at least $35.
  • Sam’s Club: Sam’s Club delivery costs differ by plan. Club members pay $12 per same-day or next-day delivery. Plus members’ costs vary by order size; they get free same- or next-day delivery for orders of at least $50 (pre-tax), but they have to pay $8 for orders under $50. Both tiers provide Express delivery (within a few hours) for an extra $8.
  • Costco: Costco members in eligible ZIP codes can get same-day grocery delivery for free for orders of at least $35. The same-day delivery is powered through Instacart, but you don’t need a separate Instacart membership. Want to stock up on non-perishable groceries? Costco offers 2-day delivery; no delivery fee is charged on orders of $75 or more.

The winner? These days, a $35 minimum isn’t hard to foot, so both Walmart and Costco will usually beat out Sam’s Club for same-day grocery delivery.

Related: Walmart vs. Target: 10 Big-Box Price Comparisons

Pharmacy


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All three grocers have in-store pharmacies. Here’s a breakdown of each offering:

Walmart: Without a membership, you can have prescriptions delivered for $9.95 per delivery. Walmart+ members enjoy free prescription delivery as soon as the same day with no order minimum. Also, Walmart in-store pharmacies administer a variety of vaccines.

Sam’s Club: Members can access some top-notch pharmacy perks. For starters, all members pay $10 or less on more than 600 generics, and discounted prices on brand-name medications at both Sam’s Club pharmacies as well as 62,000 other participating locations. Plus members enjoy $0 prescriptions on up to 10 generic drugs: amlodipine, donepezil, escitalopram oxallate, finastride, lisinopril, metformin, montelukast, pioglitazone, sertraline, and Vitamin D. Plus-tier members also get additional savings on pet prescriptions.

Costco: Costco offers a range of immunizations and helps you refill and manage your prescriptions. You can pick up your prescriptions at an Rx locker, get them delivered through Instacart, or have them delivered by mail. Members have exclusive access to $29 virtual doctor appointments for new prescriptions or refills with Sesame. Have pets? You can also use Costco’s Member Pet Prescription program to save on cat and dog prescriptions and have them delivered to their homes. 

The winner? Sam’s Club and Costco outshine Walmart when it comes to your pharmacy needs.

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Related: Walmart Lovers: Don’t Make These Shopping Mistakes

Selection


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Stock keeping units (SKUs) are codes that businesses use to identify and track the products they sell. The number of SKUs at a store can give you an idea of the breadth of product types it offers and the amount of variety within product types.

  • Walmart: Individual Walmart stores have roughly 140,000 SKUs on a given day.
  • Sam’s Club: It’s estimated to carry between 6,000 and 7,000 products.
  • Costco: This warehouse club has the fewest options at only around 4,000 SKUs.

The winner? Walmart, by a landslide—if you covet the widest selection.

But I’d be remiss not to point out that Sam’s Club and Costco are able to offer better prices explicitly because they feature fewer brands. And Costco specifically curates its offerings and only sells products it believes are of high quality. It also offers highly rated Kirkland Signature products that many consumers consider to be better than the name-brand counterparts. So if you’re looking for the best selection, Costco gets the nod.

Related: Consumers Should Avoid These 10 Products at Walmart

Mobility Vehicles


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Do you have mobility issues? All of these grocery chains have ways to make shopping easier for you. 

  • Walmart: The store chain has electric scooters for customers to use; they’re located near store entrances.
  • Sam’s Club: Sam’s, which is owned by Walmart, similarly offers motorized shopping carts, though some also have manual wheelchairs.
  • Costco: Costco has mobility scooters located in front of the warehouse. They’re free to use for anyone with mobility issues.

The winner? I’m happy to say this is a three-way tie.

Related: 10 Highly Rated Member’s Mark Products to Add to Your Shopping List

Number of Locations


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Pricing, deliveries, pharmacies, and other factors don’t matter unless you live close enough to one or more locations to take advantage of the benefits. If you’re someone who lives in multiple cities or frequently visits others and likes to make grocery stops along the way, you’ll also care about the number of locations your chosen grocery chain has.

  • Walmart: It’s a household name that most people in the world recognize, though in the U.S. specifically, it boasts a massive 4,600 locations.
  • Sam’s Club: Walmart’s warehouse chain has just 600 locations.
  • Costco: The chain’s American locations total north of 620 as I write this.

The winner? Walmart, which blows away both Sam’s Club and Costco.

Related: Avoid Buying These 10 Products at Costco

Value for Cost


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Which grocery store chain offers the best value is a little more subjective. Here, I’ll go by the results of YouGov’s 2025 U.S. Grocery Store Rankings report. Respondents were asked which stores represent good value for money and which represent poor value for money.

  • Walmart: The store received the highest value score of 42 and was therefore ranked No. 1 for value.
  • Sam’s Club: It ranked No. 5 on the list with a value score of 25.
  • Costco: This chain sat right in between Walmart and Sam’s Club, with a value score of 35.1 and the No. 3 overall ranking.

The winner? While you might disagree, Walmart is considered the best value among all grocers, while Costco was the best among the warehousers.

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Related: 10 Products You’ll Regret Buying at Sam’s Club

Hannah Kowalczyk-Harper has been a professional writer since 2016 and has worked with WealthUpdate and Young and the Invested since 2019.

Prior to becoming a full-time writer, she was still immersed in words through previous roles as a library specialist and teacher. Her background in education helps her take complex topics and turn them into easy-to-understand text.

Hannah holds a degree in Elementary Education from the University of Wisconsin–Madison. When she isn’t writing, Hannah is usually found playing with her niece and nephew, traveling, or brewing more coffee.