The Best Costco Snack Bars, Ranked (#7 Surprised Us)

May 22, 2025

Costco has become a snack bar goldmine. Whether you’re looking for protein-packed fuel, kid-friendly lunchbox additions, or something sweet-yet-satisfying, there’s no shortage of options in bulk.

But not all snack bars are created equal—some are total pantry MVPs, and others… not so much. We ranked Costco’s best-selling snack bars from worst to best—and #7 genuinely surprised us.

7. Kirkland Soft & Chewy Granola Bars – $11.99 for 64 bars (0.85 oz each)

These chewy granola bars are a childhood classic. Lightly sweet, oat-heavy, and peanut buttery—but lacking wow factor compared to higher-protein or premium bars.

Nutritional Facts (per bar)

Calories: 100
Total Fat: 3g
Carbs: 17g
Sodium: 75mg
Dietary Fiber: 1g
Sugar: 7g
Protein: 1g

Ingredients

Whole grain rolled oats, sugar, brown rice syrup, palm kernel oil, whey protein, soy lecithin, peanut butter.

Preparation Instructions

Ready to eat. Store in a cool, dry place.

6. Nature Valley Crunchy Granola Bars – $13.99 for 49 packs (1.5 oz each)

These iconic crunchy bars bring texture and nostalgic flavor, but they’re definitely on the crumbly side. A bit messy, but totally satisfying with coffee or yogurt.

Nutritional Facts (per 2-bar pack)

Calories: 190
Total Fat: 7g
Carbs: 29g
Sodium: 160mg
Dietary Fiber: 2g
Sugar: 11g
Protein: 4g
Ingredients

Whole grain oats, sugar, canola oil, rice flour, honey, salt, molasses.

Preparation Instructions

Ready to eat. Keep a napkin handy!

5. Kirkland Dipped & Chewy Granola Bars – $19.99 for 48 bars

Chewy oat bars coated in rich chocolate—basically dessert disguised as a granola bar. Great for lunchboxes, but more treat than nutrition.

Nutritional Facts (per bar)

Calories: 130
Total Fat: 5g
Carbs: 20g
Sodium: 85mg
Dietary Fiber: 1g
Sugar: 10g
Protein: 1g

Ingredients

Rolled oats, sugar, palm oil, chocolate coating, whey, peanut butter, soy lecithin.

Preparation Instructions

Enjoy straight from the pack. Best stored in a cool place to prevent melting.

4. RXBAR Protein Bars Variety Pack $19.99/1.83 oz

3. Kirkland Nut Bars – $17.99 for 30 bars (1.4 oz each)

These bars are packed with almonds, cashews, and peanuts—all held together with a touch of honey and dark chocolate. Crunchy, satisfying, and subtly sweet.

Nutritional Facts (per bar)

Calories: 200
Total Fat: 15g
Carbs: 13g
Sodium: 45mg
Dietary Fiber: 3g
Sugar: 6g
Protein: 6g

Ingredients

Almonds, peanuts, cashews, honey, tapioca syrup, soy lecithin, dark chocolate.

Preparation Instructions

Ready to eat. Store in a cool, dry spot to preserve texture.

2. Kirkland Chewy Protein Bars – $18.99 for 42 bars (1.41 oz each)

These chewy bars strike a balance between protein and flavor, with 10 grams of protein and a candy-bar vibe. Great for afternoon hunger.

Nutritional Facts (per bar)

Calories: 190
Total Fat: 7g
Carbs: 22g
Sodium: 150mg
Dietary Fiber: 1g
Sugar: 6g
Protein: 10g

Ingredients

Whey protein isolate, soy protein, cocoa, palm oil, glycerin, milk protein concentrate, chicory root fiber.

Preparation Instructions

Ready to eat. Great for on-the-go snacking.

1. Kirkland Protein Bars – $19.99 for 20 bars (2.12 oz each)

Often compared to Quest Bars, these high-protein, low-sugar bars are ideal for fitness-minded snackers. Chewy with a cookie dough-like texture.

Nutritional Facts (per bar)

Calories: 190
Total Fat: 7g
Carbs: 22g
Sodium: 170mg
Dietary Fiber: 15g
Sugar: 1g
Protein: 21g

Ingredients

Milk protein isolate, whey protein isolate, soluble corn fiber, almonds, cocoa, natural flavors, stevia.

Preparation Instructions

Best stored at room temperature. Warm slightly for a softer texture.

Conclusion

Costco’s snack bar selection is nothing short of impressive—but it’s clear that not every bar is a hit. From protein powerhouses to nostalgic treats, these rankings prove that taste, nutrition, and value all matter. And while #7 may have surprised us, there’s no doubt which bars you’ll be buying on repeat.