World's Largest Mailbox in Casey, Illinois roadside attraction

World’s Largest Mailbox in Casey, Illinois

Home » Roadside Attractions Blog » Illinois » World’s Largest Mailbox in Casey, Illinois

This roadside attraction is first class and so big you’re going to want to visit posthaste. It’s the world’s largest mailbox in Casey, Illinois.

World's Largest Mailbox  in Casey, Illinois roadside attraction

Casey, Illinois is known for its big versions of normal-sized things. With twelve world-record holding world’s largest roadside attractions and a whole pack of non-record breaking but still impressively large objects, it’s a must see stop on any Illinois road trip.

One of the biggest of the big things in Casey is the world’s largest mailbox. Certified as the world’s largest by Guinness World Records on October 20, 2015, it measures 5,743.41 cubic feet and follows the design of a standard post mount mailbox to the letter.

World's Largest Mailbox  in Casey, Illinois roadside attraction

The best part? This giant mailbox really is a mailbox! Hidden away in the post is a secret staircase that allows visitors to climb inside. Waiting at the top? A mail slot to drop your postcards to home. The big red flag on the side even raises up and down whenever anyone mails a letter.

While up there be sure to walk to the edge for impressive aerial views of some of the other roadside attractions in Casey, Illinois.

World's Largest Mailbox  in Casey, Illinois roadside attraction

Like all the other giant attractions in Casey, the biggest mailbox in the world was created by Jim Bolin, who originally came up with the idea to create a giant wind chime to lure people off the highway and into Casey. His plan worked so well that one big thing turned into another. And another. And now, an entire town is filled with weird, wacky, and wonderful roadside attractions.

Not to play favorites, but of all the attractions in Casey, Illinois, the world’s largest mailbox just might be one of mine. Let’s just say that this Illinois roadside attraction gets my STAMP of approval. 

World's Largest Mailbox  in Casey, Illinois roadside attraction
World's Largest Mailbox  in Casey, Illinois roadside attraction
World's Largest Mailbox  in Casey, Illinois roadside attraction
World's Largest Mailbox  in Casey, Illinois roadside attraction
World's Largest Mailbox  in Casey, Illinois roadside attraction
World's Largest Mailbox  in Casey, Illinois roadside attraction
World's Largest Mailbox  in Casey, Illinois roadside attraction
World's Largest Mailbox  in Casey, Illinois roadside attraction
World's Largest Mailbox  in Casey, Illinois roadside attraction
World's Largest Mailbox  in Casey, Illinois roadside attraction
World's Largest Mailbox  in Casey, Illinois roadside attraction

World’s Largest Mailbox

Address: W Main St, Casey, IL
Cost: Free to See
Hours: Always Visible


Pin this Illinois roadside attraction:

This roadside attraction is first class and so big you’re going to want to visit posthaste. It’s the world’s largest mailbox in Casey, Illinois. One of the biggest roadside attractions in Casey is the world’s largest mailbox. Certified as the world’s largest by Guinness World Records.  #IllinoisRoadsideAttractions #IllinoisRoadsideAttraction #RoadsideAttractions #RoadsideAttraction #RoadTrip #IllinoisRoadTrip #IllinoisWeekendGetaways #IllinoisWithKids #IllinoisRoadTripTravel
This roadside attraction is first class and so big you’re going to want to visit posthaste. It’s the world’s largest mailbox in Casey, Illinois. One of the biggest roadside attractions in Casey is the world’s largest mailbox. Certified as the world’s largest by Guinness World Records.  #IllinoisRoadsideAttractions #IllinoisRoadsideAttraction #RoadsideAttractions #RoadsideAttraction #RoadTrip #IllinoisRoadTrip #IllinoisWeekendGetaways #IllinoisWithKids #IllinoisRoadTripTravel
This roadside attraction is first class and so big you’re going to want to visit posthaste. It’s the world’s largest mailbox in Casey, Illinois. One of the biggest roadside attractions in Casey is the world’s largest mailbox. Certified as the world’s largest by Guinness World Records. #IllinoisRoadsideAttractions #IllinoisRoadsideAttraction #RoadsideAttractions #RoadsideAttraction #RoadTrip #IllinoisRoadTrip #IllinoisWeekendGetaways #IllinoisWithKids #IllinoisRoadTripTravel

Plan your road trip

Use the links below to book your hotel and rental car, plan your route, and more.

Book your road trip:

This section contains affiliate links from which we might make a commission from your purchases, at no cost to you.

Book your hotel at Booking.com

Rent a car at RentCars.com

Plan your road trip:

Road Trip Planner

How to Plan a Road Trip

Road Trip Budget

What To Do on a Road Trip

Road Trip Stops

What to Wear on a Road Trip

Road Trip Packing List

Road Trip Luggage

Road Trip Cameras

Val

Val is the founder and head road tripper at Silly America. Having grown up near Berwyn's famed car kabob, The Spindle, and a restaurant with a cow on its roof, her fascination with roadside attractions started early. Today, Val has visited over 300 roadside attractions across 31 states and is constantly on the lookout for the next BIG thing!

Val also blogs about her life, travels, and cats on her personal blog, Choosing Figs.

View stories