Sparkling water price in Houston.

How we got these numbers

• Instacart — Aldi:Category multiplier against Walmart base, adjusted for South Urban ($3.92)
• Walmart+:Regional baseline ($4.26)
• Amazon Fresh (Prime):Category multiplier against Walmart base, adjusted for South Urban ($4.68)
• Instacart — Whole Foods:Category multiplier against Walmart base, adjusted for South Urban ($7.45)

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

Beverages — coffee, juice, soda — have the widest pricing band because shelf-pricing competition is fierce, but online delivery pricing often drops the in-store discounts.

Houston grocery context

Houston is H-E-B country — most locals consider H-E-B the default for everything, and it doesn't partner with Instacart. That makes the 'best of the four major delivery services' question secondary in Houston compared to 'what does H-E-B not have that I need delivered?' Hurricane preparedness shapes how Houstonians shop: stocked pantries and bulk water are seasonal priorities June through November. Walmart+ stores are scattered across the metro from The Woodlands to Pearland, giving the broadest geographic coverage of the four services.

Use H-E-B for your regular shop and Walmart+ for items H-E-B doesn't carry well (specific national brands, household goods, electronics-adjacent items). Amazon Fresh is worth it for Prime members already paying $139/yr — at that point grocery delivery is essentially free above $100.

Sparkling water prices in other cities

• Dallas, TX
• Austin, TX
• San Antonio, TX
• Jacksonville, FL
• Fort Worth, TX