Costco vs. Walmart: Where are the Best Organic Prices?

Costco vs Walmart: Who has the best organic prices on items like milk, eggs, butter, and chicken?

I’m a huge Costco fan. I love their organic selection and find their prices to be worth the membership cost.

But recently, Walmart announced they were going to drive down organic food costs.

I don’t shop Walmart. There is whole backstory there that involves my living in a small town in Texas and Walmart being the only store within a 3 hour radius. Once I moved to where I had more options, I’ve embraced those options.

But, what I learned in those 3 years in Texas, is I can really appreciate those readers who write to me complaining that they simply don’t have many organic options where they live.

Which brings me back to Walmart.

Is Walmart really driving down organic prices?

I strolled the aisles of Walmart noting the organic selection and pricing, then popped over to Costco to do the same.

Where are the best organic prices?

organic prices

The items I compared are items I felt most families purchase regularly.

Great Value is the Walmart brand and Kirkland Signature is the Costco brand. If a store brand was available, I looked at the store brand pricing.

Since you have to purchase larger quantities at Costco, I tried to address that in the pricing I compared.

Walmart pricing is in black, Costco pricing is in red.


Walmart: Great Value Organic Milk $3.68/half gallon
Costco: Kirkland Signature Organic Milk $3.29/half gallon must buy 3 for an out of pocket cost of $9.89

Walmart: Horizon Organic Chocolate Milk $11.58/12 pack single serve. Comes to $0.96 each
Costco: Kirkland Signature Chocolate Milk $7.94/12 must buy 24 pack at $15.89. Comes to $0.66 each


Walmart: Great Value Organic Eggs $4.38/dozen
Costco: Kirkland Signature Organic Eggs $3.50/dozen comes in 2 dozen for an out of pocket expense of $6.99 


Walmart: Horizon Organic Butter $5.08/lb
Costco: Kirkland Signature Organic Butter $3.85/lb must buy 2 pounds of an out of pocket expense of $7.69

Walmart: Spectrum Coconut Oil $6.98/14 oz or $0.50/oz
Costco: Nutiva Organic Extra Virgin Coconut Oil $21.49/78 oz or just $0.28/oz


Walmart: Nature’s Path Pumpkin Flax Granola $3.28/11.5 oz box or $0.29 per oz
Costco: Nature’s Path Pumpkin Flax Granola $7.79/35.3 oz box or $0.22 per oz


Walmart: Annie’s Organic Shells & Real Aged Cheddar $1.56/box
Costco: Annie’s Organic Shells & Real Aged Cheddar $15.99/15 boxes or $1.06/box


Walmart: Harvestland Organic Boneless, Skinless Chicken Breasts $5.98/lb
Costco: Coleman Organic Boneless, Skinless Chicken Breasts $5.99/lb


Walmart: Marketside Organic Baby Spinach $4.98/10 oz
Costco: Organic Baby Spinach $3.99/16 oz


The only exception is on boneless, skinless chicken breasts where Walmart is $0.01 cheaper per pound. One. lousy. penny.

If you are looking to feed your family an organic diet but need to stay on a budget, Costco appears to be the clear winner to me.

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  1. Samantha says:

    Buying in bulk usually gives you the cheaper price per unit. I wonder if you compared organic walmart prices against other stores that sell in similar sizes if Walmart would be the winner (Whole Foods, Kroger, etc). Costco is my favorite place for good prices on organic foods, but I fill in the gaps at other stores. We don’t always use Costco quantities of some items before they go bad so if be interested to see if Walmart beats out the other grocery stores.

  2. LeAnn foss says:

    Have you compared trader’s Joe? I would love to eat more organic but do you think it is possible to spend 400 a month to do so. My husband and I both have good allergies and I need to eat meat as I have to watch my blood sugar levels.

  3. I live 2 hours away from Whole Foods and Costco. I have found the best organic prices at ALDI. Not a Huge selection, but their milk is hormone-free, and their organic bananas are the best I’ve had!

  4. Where we live in WA, I can get Organic Valley milk @5.69/gallon (not ultra pasteurized) and organic jumbo eggs (from a regional farm) @3.49/dozen at QFC (a Kroger store), so while Walmart vs Costco is probably a great pair to compare, I feel it’s best to check around where you live for the items you buy.

    Thanks for the unit price comparison on coconut oil- I need to find that next time I go to Costco. 🙂

  5. Eva@Whole Food Mom on a Budget says:

    Nice comparison! I do not shop at Walmart for many reasons. Costco chooses to pay their employees above minimum wage and in my opinion, is just a better company to support. I love their organic selection!

  6. This does not take coupons into account. I buy a lot of organic items at Harris Teeter who has their own line of organics but also doubles coupons up to 99 cents every day and when they have super doubles, I get many free and under $1 items (not all organic, but some). Also taking into account that HT takes competitor’s coupons off the total amount of purchase, it is like having coupons for those organic items that are store brands or never have coupons. I had a competitor’s coupon for $11 off a total order of $65 or more today. I personally am not a member at Costco and was considering it until I read news accounts of the Costco CEO banning a book by Dinesh D’Souza and supporting liberal causes. Not with my money! Thank you for working on this comparison and all the other things you do to help your readers save money.

  7. I would have guessed that Costco would be the winner. I live in a small town. Wal-Mart is 1.5 hours away and Costco is 2.5 hours away. I go to Costco as often as I can, but Wal-Mart is where I shop more often. Thanks for taking the time to report on these price comparisons for us. This is a helpful post!

  8. Maria Moss says:

    I wonder how Sam’s compares being both bulk stores. (sam’s vs costco)

  9. Maria Moss is right to wonder how Sam’s Club compares to Costco: for a truly fair comparison, you’d have to compare Costco and Sam’s Club prices (NOT Walmart’s prices!), because Sam’s Club is the membership warehouse club OWNED by Walmart! Sam’s Club = Walmart Corp!
    Plus, Sam’s Club has “Click’n’Pull” which has made me tempted to join, as I love to save TIME as well as money! With Click’n’Pull you order (& pay, I think) online and they get your order ready for you; you just go pick it up!

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