Walmart vs Target vs Costco: Which Store Has the Cheapest Groceries in 2026?

The question “Is Walmart, Target, or Costco cheapest for groceries?” is one of the most searched grocery questions in America. With grocery prices up significantly since 2020, choosing the right store can save a family hundreds of dollars every month.

We used Store Search to compare live prices across Walmart, Target, and Costco on everyday essentials. Here's what we found.

This guide focuses on the three largest US chains, but the same comparison principles apply everywhere — see our step-by-step grocery price comparison guide for strategies that work in any market.

Price Comparison: Walmart vs Target vs Costco (2026)

Prices are approximate and change frequently. Costco prices require membership ($65/yr). Compare live prices with Store Search.

Walmart: Best for Everyday Low Prices

Walmart wins on most everyday staples with their Great Value house brand. Their “Everyday Low Price” strategy means fewer sales but consistently low prices. For a typical weekly grocery run, Walmart is 10-15% cheaper than Target overall.

Walmart is cheapest for: Milk, bread, eggs, canned goods, cereal, pasta, frozen foods, and household basics.

Target: Best for Quality House Brands

Target's Good & Gather brand offers better quality than most store brands at a moderate premium over Walmart. Target frequently runs BOGO (buy one get one) promotions and their RedCard gives 5% off everything.

Target is cheapest for: Organic products, specialty items, and anything when using RedCard + Circle offers combined.

Costco: Best for Bulk Buying

Costco offers the lowest per-unit prices on most items, but you must buy in bulk. For families who can store large quantities, Costco's Kirkland Signature brand delivers exceptional value — often matching or beating name brand quality at 40-60% lower prices.

Costco is cheapest for: Meat, cheese, butter, olive oil, nuts, diapers, toilet paper, and cleaning supplies (per unit).

The Full Basket: Which Store Wins?

For a weekly grocery run of basic staples (milk, eggs, bread, chicken, rice, pasta, canned goods, and produce), here's how the total basket typically breaks down:

• Walmart: ~$85-95 per week (cheapest for most families)
• Target: ~$95-110 per week (10-15% more than Walmart)
• Costco: ~$75-85 per week equivalent (cheapest per unit, but higher upfront spend)
• Aldi: ~$70-85 per week (cheapest overall if available in your area)

Other Cheap US Grocery Stores to Consider

Walmart, Target, and Costco aren't the only options. Here are other stores that often beat them on price:

• Aldi — Typically 20-30% cheaper than Walmart on most items
• WinCo Foods — Employee-owned, bulk bins, very competitive pricing
• Kroger — Strong digital coupon programme and fuel points
• H-E-B — Texas-based, excellent house brands (if in TX)
• Trader Joe's — Fixed prices, great on specialty items and frozen meals

How to Compare Prices Across All US Stores

Instead of driving between stores, use Store Search to compare live grocery prices across Walmart, Target, Costco, Kroger, Aldi, H-E-B, and 12+ more US stores. For a full review of comparison tools, see our guide to the best grocery price comparison apps in 2026.

Select your products, choose which stores to compare, and get real-time AI-powered results showing the cheapest option for each item and your full basket.

The Bottom Line

Walmart wins for most everyday grocery shopping with consistently low prices. Costco beats everyone on per-unit cost for families who buy in bulk. Target is a better choice if you value quality house brands and already use the RedCard. For the absolute cheapest groceries, consider Aldiif there's one near you. Shoppers in South Africa can compare the same way using our cheapest grocery store in South Africa guide.