US Post Office in Grain Valley, MO – Reviews, Hours, and Contact Details

US Post Office Post Office

Visit your local Post Office at 112 W Walnut St to find everything you need to send mail and ship packages. Explore our other products and services like money orders, Post Office boxes, passports, gift cards, and more

Website: usps.com

Phone: (816) 228-2024

Closed now

Thu 9:30 AM - 4:30 PM
Fri 9:30 AM - 4:30 PM
Sat 9:00 AM - 12:00 PM
Sun Closed
Mon 9:30 AM - 4:30 PM
Tue 9:30 AM - 4:30 PM
Wed 9:30 AM - 4:30 PM

112 W Walnut St Grain Valley, MO 64029 ·800.92 mi

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Reviews

5.0 2 reviews

5 star

2 4 star

0 3 star

0 2 star

0 1 star

Valerie H. 02/16/25

I don't know why I even bothered to try the BS office, other than I didn't think I would make it out to Grain Valley before they closed. I should have known better. The BS office is dirty with...

Kathleen S. 03/16/18

I sell on eBay and frequently mail packages from the Grain Valley post office. I have been using this post office several times a week for over 11 years, since I moved to Missouri from a lifetime...

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