Costco same-day delivery (Instacart)

Costco publishes same-day grocery delivery in many U.S. markets through Instacart. For families juggling work and childcare, that matters as much as shelf price: a delivery fee plus a modest markup can still beat the hidden cost of a two-hour warehouse trip when gas, parking, and impulse buys are counted.

What to verify on Costco’s site

Before you rely on delivery, open Costco’s same-day grocery page for your warehouse: confirm your address, the delivery minimum, service fee, and whether organic items you buy in-store appear in the online catalog. Instacart+ is Instacart’s separate membership; Costco’s checkout may show Instacart service fees even if you already pay for Instacart+ — read the fee line on your test order.

Price parity

Members report — and Costco’s help pages describe — that many items ship at warehouse-adjacent pricing, with a service fee and optional tip. We treat “nearly the same price as in-store” as a hypothesis to test with your own basket, not a guarantee. Screenshot your cart subtotal and compare it to an in-club receipt when you can.