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Usitour
Sightseeing

Old Post Office and Customshouse

📍 281 Front St, Key West, FL 33040, USA
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3.5/ 5.0
★★★★☆

Quick Facts

Location
USA
Category
Sightseeing
Duration
30 minutes - 1 hour
Address
281 Front St, Key West, FL 33040, USA
Coordinates
24.5553, -81.8051

Introduction

The Old Post Office and Customshouse is located near Mallory Square in Key West, Florida, and is a U.S. National Historic Landmark designed by architect Richard A. Gilbert and completed in 1891. This three-story coral stone building simultaneously served as a post office, customshouse, and courthouse, and was the southernmost federal government building in the United States at the time. The architecture blends Romanesque Revival style with local coral stone construction, with exterior walls built from locally quarried coral rock blocks, giving it unique Florida character. The building still functions as a post office today, one of the few 19th-century federal buildings still in operation. Visitors can enter to experience century-old postal history and mail postcards stamped with the Key West postmark.

✨ Highlights

1
National Historic Landmark
1891 federal building designated as U.S. National Historic Landmark
2
Coral Stone Construction
Exterior walls of locally quarried coral rock, unique Florida character
3
Triple Function
Historically served as post office, customshouse and courthouse
4
Southernmost Federal Building
Was the southernmost U.S. federal building at the time
5
Still Operating Post Office
One of few 19th-century federal post offices still in operation
6
Romanesque Revival
Blends Romanesque Revival architecture, dignified and elegant

🛈 Practical Info

→Duration：30-45 minutes
→Address：281 Front St, Key West, FL 33040
→Transport：Next to Mallory Square, walkable in Old Town Key West
→Services：Buy stamps and mail postcards with Key West postmark
→Opening Hours：Mon-Fri 9:00-16:00, closed federal holidays
→Transportation：On foot

Ticket Information

Ticket Information
AdultFree

Free

💡 Tips

• Mail postcards with Key West postmark as a unique souvenir
• Building is operational, do not disturb postal operations
• Combine with Mallory Square and Key West Lighthouse
• Notice the unique coral stone wall texture, a local architectural feature
• Closed on federal holidays, check hours before visiting
• Follow post office photography rules, some areas restricted

FAQ

What are the opening hours of Old Post Office and Customshouse?

Mon-Fri 9:00-16:00, closed federal holidays

How much is the admission for Old Post Office and Customshouse?

Adult: Free; Free

Any practical tips for visiting Old Post Office and Customshouse?

Mail postcards with Key West postmark as a unique souvenir Building is operational, do not disturb postal operations

How long should I spend at Old Post Office and Customshouse?

A typical visit takes 30 minutes - 1 hour.

Ticket prices, schedules and opening hours are for reference only; please follow the official announcement.