Cass County Post Office

Find Cass County Nebraska post offices and USPS mailing boxes. Post offices provide information on bulk mail services, domestic mail delivery, international shipping, change of address, mail forwarding, PO boxes, and passport services.


Avoca Post Office 624 House Street Avoca NE 68307 402-275-3270


Cedar Creek Post Office 104 Parson Dr Cedar Creek NE 68016 402-234-5262

Eagle Post Office 445 4th Street Eagle NE 68347 402-781-2881

Elmwood Post Office 116 West D Street Elmwood NE 68349 402-994-3495

Greenwood Post Office 614 Main Street Greenwood NE 68366 402-789-5445

Louisville Post Office 202 Cherry Street Louisville NE 68037 402-234-5595

Manley Post Office 107 Main Street Manley NE 68403 402-234-3795

Murdock Post Office 304 Nebraska Street Murdock NE 68407 402-867-3441

Murray Post Office 105 North Latta Avenue Murray NE 68409 402-235-2166

Nehawka Post Office 418 Elm Street Nehawka NE 68413 402-227-3515

South Bend Post Office 103 Nebraska Street South Bend NE 68058 402-944-2650

US Post Office 802 Avenue B Plattsmouth NE 68048 402-296-2152

Union Post Office 129 West Main Street Murray NE 68409 402-263-2130

Weeping Water Post Office 107 North Commercial Street Weeping Water NE 68463 402-267-6445

What Change of Address options are available?

Customers can request a temporary or permanent Change of Address either online or in person at the Post Office using PS Form 3575. The online application for Change of Address has a $1.00 identity validation fee.

Is it possible to insure mail and items sent via the USPS?

Yes. Standard mail can be insured for up to $5,000 for an additional fee. Registered mail items can be insured for up to $50,000.

What is the USPS Office of Inspector General?

The Office of Inspector General (OIG) is a division within the USPS responsible for ensuring the integrity and accountability of the postal service. It conducts investigations to safeguard the postal system and performs audits and reviews.