Lyon County Post Office

Find Lyon County Iowa 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.


Alvord Post Office 217 Main Street Alvord IA 51230 712-473-2260


Doon Post Office 223 Main Street Doon IA 51235 712-726-3485

George Post Office 120 East Michigan Avenue George IA 51237 712-475-3333

Inwood Post Office 201 South Main Street Inwood IA 51240 712-753-4400

Larchwood Post Office 935 Broadway Street Larchwood IA 51241 712-477-2323

Lester Post Office 311 Main Street Lester IA 51242 712-478-4321

Little Rock Post Office 319 Main Street Little Rock IA 51243 712-479-2263

Rock Rapids Post Office 217 North 2nd Avenue Rock Rapids IA 51246 712-472-3215

About Lyon County Post Offices

Lyon County Post Offices are branch locations of the customer service postal facilities of the United States Postal Service (USPS) in Lyon County, IA. The USPS is an independent agency of the federal government that provides mail and package delivery services to all states and territories. Lyon County post offices are supported entirely by revenues generated by their own operations. Operational authority over the USPS lies with a Board of Governors and rate setting authority falls under the Postal Rate Commission.

You may contact the Post Office for questions about:
  • Lyon County Post Office hours and locations
  • Mail and package delivery services
  • Lyon County PO Box services
  • Passport applications and renewals
  • Lyon County Post Office jobs and employment
USPS Mail Services

The USPS uses a vast network of Post Offices, Processing and Distribution Centers, Priority Mail Processing Centers, Air Mail Centers, and Bulk Mail Centers to sort, process, distribute, and deliver mail. Lyon County Post Offices serve as one of the primary points of customer contact in the mail delivery process.

Lyon County Mail Delivery Services

Post Offices in Lyon County accept mail and packages from senders, offering a range of mailing and pricing options. The most common form of mail delivery, and one for which the Lyon County USPS has a legal monopoly, is residential first-class mail. First-class mail is designed for envelopes and lightweight packages, and it provides delivery to any location in the U.S. at a flat rate of one first-class mail stamp. Multiple other mailing options are available for letters and packages of any size. Priority mail options provide faster delivery at a higher cost than first-class mail. Lyon County Post Offices sell stamps, shipping supplies, and certain collectors' and gift items. Customers can also choose Registered, Certified, and Return Receipt mail for varying degrees of verification of an item's delivery. Post Offices also sell money orders. Shipping and customs forms are also available at Lyon County Post Offices.

Lyon County PO Boxes

Businesses and residential customers can also use the Post Office to receive their mail instead of choosing delivery to their door. Post Office Boxes, also called P.O. Boxes, are available for rent in multiple sizes for a monthly rental fee.

Lyon County Passport Applications & Renewals

The Lyon County Post Office provides passport services. Passport services in Lyon County may include help with renewing passports, applying for a new passport, changing names on a passport, and processing expedited passport services. Passport acceptance services provided by Lyon County Post Offices often require having a scheduled appointment.