Chunk light tuna in water price in Philadelphia.

How we got these numbers

• Instacart — Aldi:Category multiplier against Walmart base, adjusted for Northeast Urban ($0.97)
• Walmart+:Regional baseline ($1.02)
• Amazon Fresh (Prime):Category multiplier against Walmart base, adjusted for Northeast Urban ($1.12)
• Instacart — Whole Foods:Category multiplier against Walmart base, adjusted for Northeast Urban ($2.04)

Live observations come from public weekly ads (Aldi, Whole Foods) and BLS Average Retail Food Prices, refreshed daily. Estimates use a per-category multiplier calibrated to NPR, Consumer Reports, and Tasting Table grocery comparison studies.

Why this category prices the way it does

Canned goods are where private-label dominance shines — Aldi's Casa Mamita and Walmart's Great Value lines undercut name brands by 30-50% on identical specs.

Philadelphia grocery context

Philadelphia's grocery scene is dominated by Acme Markets and ShopRite, both available via Instacart. Wegmans has built a loyal suburban following with locations in King of Prussia, Cherry Hill, and Warrington. Aldi delivery is strong across the metro thanks to dense stores in South Philly, Northeast, and the suburbs. Walmart+ covers most city zips except parts of Center City. Philly's row-house density means most deliveries reach the door directly — no buzzer-and-doorman complications like NYC.

For weekly staples, Instacart-Aldi consistently wins on price. For one-stop premium shopping, Wegmans-via-Instacart in the suburbs is unbeatable on selection. Stack with Walmart+ for household goods where their broader catalog matters more than per-item price.

Chunk light tuna in water prices in other cities

• New York City, NY
• Washington, DC
• Boston, MA