Whole milk price in San Antonio.

How we got these numbers

• Walmart+:Live observation from May 11 ($2.42)
• Instacart — Aldi:Calibrated estimate against retailer-specific multiplier ($2.60)
• Amazon Fresh (Prime):Live observation from Apr 15 ($4.55)
• Instacart — Whole Foods:Calibrated estimate against retailer-specific multiplier ($5.51)

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%.

San Antonio grocery context

San Antonio is H-E-B country in a way only Texans understand — H-E-B operates 70+ stores in the metro and considers SA a hometown market. Among the four major national delivery services we compare, Walmart+ has the broadest physical store footprint here, with stores in nearly every San Antonio neighborhood. Instacart has a thinner partner network in SA than in larger metros — Whole Foods is available, but Aldi has limited delivery range from its small handful of SA stores.

San Antonio residents who want delivery beyond H-E-B should default to Walmart+ for any item Walmart sells. The annual $98 membership pays back within 25 orders. Use Amazon Fresh for Prime-eligible items you already get from Amazon retail.

Whole milk prices in other cities

• Houston, TX
• Austin, TX
• Dallas, TX
• Jacksonville, FL
• Fort Worth, TX