Plain Greek yogurt price in Philadelphia.

How we got these numbers

• Walmart+:Live observation from May 11 ($2.94)
• Instacart — Aldi:Live observation from May 12 ($3.49)
• Amazon Fresh (Prime):Live observation from May 13 ($7.44)
• Instacart — Whole Foods:Live observation from May 13 ($8.09)

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

Dairy is the most regionally stable category — milk and eggs track USDA market reports closely, so the price gap between services is usually under 25%.

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.

Plain Greek yogurt prices in other cities

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