How can I find out if Walmart has an item in stock?

Online or call customer service desk

On line will tell you if in store

You can call them first.

If your looking on-line, it should state if item is available or needs be shipped. If your just wondering before driving to store, call them

The Wal-Mart web site gives you a pick up here option. And if that it's hard to navigate go old school and call them. Most super Wal-Mart's have a dispatch office that is super helpful if you have a little patience. What are you looking for?

I would just call cause sometimes online the store doesn't carry the item