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US Post Office
About US Post Office
US Post Office is a shipping or delivery service in the public service and government sector, based in Affton, MO. Its recorded address is 55 Grasso Plz, 63123. The listing includes a telephone number, an official website. US Post Office has 7,292 listed locations in total; this page covers the Affton branch.
- Address
- 55 Grasso Plz, Affton, MO, 63123
- Phone
- (800) 275-8777
- Website
- tools.usps.com
- Social
Questions
Where is US Post Office located?
55 Grasso Plz, Affton, MO, 63123
How do I contact US Post Office?
(800) 275-8777 · https://tools.usps.com/find-location.htm?location=1434957
What type of business is US Post Office?
US Post Office is a shipping or delivery service (public service and government) in Affton.
US Post Office branches
US Post Office has 7,292 listed locations. This branch is in Affton.
- Kailua Kona96740-2440
- Hilo96720
- Hilo96720
- Laupahoehoe96764-9997
- Kapaau96755-3001
- Kihei96753
- Lanai City96763
- Pukalani96788
- Lahaina96761
- Honolulu96817
Nearby shipping or delivery service
- AFFTONSAINT LOUIS0.0 km
- United States Postal ServiceSt Louis0.0 km
- Post Office-Saint LouisSt Louis0.0 km
- The UPS StoreSt Louis0.1 km
- Amazon Locker - KoenSaint Louis1.1 km
- Amazon Locker - CokkieSaint Louis1.4 km
- Triple Threat Dart Supplies and U-HaulSt Louis2.2 km
- UPS Access Point locationSAINT LOUIS3.4 km
- Flanagan-White ExpressSt Louis3.4 km
- FedEx Office Print & Ship CenterSt Louis3.6 km
- The UPS StoreSt Louis3.3 km
- UPS StoreSaint Louis3.3 km
- USPS Collection PointSt Louis4.0 km
- US Post OfficeSaint Louis4.0 km
- United States Postal ServiceSaint Louis4.0 km
Cite this page
“US Post Office, Affton — business.wiki, retrieved August 2026.” Facts on this page come from openly licensed data (Overture Maps Foundation) and are refreshed with each monthly release; sourcing is documented on the methodology page.