Best Waterproof Key Safes: Top 10 Secure Options Reviewed

Looking for the best waterproof key safes to keep your keys secure? We’ve tested and reviewed the top 10 options to help you find the perfect one for your needs.

Keeping your keys safe is a top priority, especially when you’re away from home. Waterproof key safes offer a reliable solution, protecting your keys from rain, snow, and even extreme heat.

We’ve tested and reviewed the best waterproof key safes to help you find the perfect one. Whether you need a compact option for travel or a heavy-duty safe for outdoor use, we’ve got you covered.

List of Top 10 Waterproof Key Safes

Image Title Best For Price
YIYITOOLS Fireproof Lock Box with Key and Combination Lock, Fire Safe Document Box, Portable Fireproof Waterproof Safe for Home,Office,Travel, Secure Storage for Documents,Jewelry,Passport,Cash YIYITOOLS Fireproof Lock Box with Key and Combination Lock, Fire Safe Document Box, Portable Fireproof Waterproof Safe for Home,Office,Travel, Secure Storage for Documents,Jewelry,Passport,Cash

This fireproof, waterproof safe is perfect for travelers, homeowners, and office workers. It offers secure storage with a dual lock system to protect documents, jewelry, and cash.

View on Amazon (paid link)
GIVERARE Lock Box, 4 Digits Combination Lockbox, Waterproof Outdoor Key Hider for House Key Storage Wall Mount Outside, Resettable Code Safe Security Password Boxes with Mounting Kit-Black GIVERARE Lock Box, 4 Digits Combination Lockbox, Waterproof Outdoor Key Hider for House Key Storage Wall Mount Outside, Resettable Code Safe Security Password Boxes with Mounting Kit-Black

The GIVERARE Lock Box is perfect for anyone who needs a secure, outdoor key storage solution. It’s ideal for homeowners, renters, or businesses who want easy access for family, friends, or pet sitters.

View on Amazon (paid link)
SentrySafe Charcoal Gray Fireproof and Waterproof Safe Box with Key Lock, Portable Chest for Money, Passport, 0.28 Cubic Feet, 6.6 x 15.4 x 14.3 Inches, CHW20221 SentrySafe Charcoal Gray Fireproof and Waterproof Safe Box with Key Lock, Portable Chest for Money, Passport, 0.28 Cubic Feet, 6.6 x 15.4 x 14.3 Inches, CHW20221

This fireproof and waterproof safe is perfect for homeowners, renters, or travelers needing secure storage for important documents, cash, passports, or small valuables. Its key lock and carrying grips offer simple security and easy transport, while the compact size fits essentials like USBs or DVDs.

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Hide A Key Cash Hider Sprinkler Head, Key Holder Outdoor/Garden/Yard hiding Vault Case. Waterproof, Corrosion and Impact resistant Hide A Key Cash Hider Sprinkler Head, Key Holder Outdoor/Garden/Yard hiding Vault Case. Waterproof, Corrosion and Impact resistant

This Hide A Key Cash Hider Sprinkler Head is perfect for homeowners who want a clever and discreet way to store a spare key or emergency cash. It’s ideal for anyone who has ever worried about getting locked out or needing quick access to funds.

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Luhrjeao Lock Box, Key Lock Box XL Wall Mounted, Durable Waterproof Outdoor Key Safe with Heavy-Duty Metal, 4-Digit Resettable Combination Lock for Home, Rentals, Realtors & Apartment Luhrjeao Lock Box, Key Lock Box XL Wall Mounted, Durable Waterproof Outdoor Key Safe with Heavy-Duty Metal, 4-Digit Resettable Combination Lock for Home, Rentals, Realtors & Apartment

This Luhrjeao Lock Box is perfect for anyone who needs a secure and organized way to store keys. It’s great for homeowners, renters, realtors, and businesses looking for easy access and peace of mind.

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Iron Lock® Key Lock Box XXL Wall Mount – Waterproof Outdoor Key Safe with Heavy-Duty Metal Body & 4-Digit Combination – Lock Box for Keys Outside for Home, Rentals & Realtors Extra Large (Black, XXL) Iron Lock® Key Lock Box XXL Wall Mount – Waterproof Outdoor Key Safe with Heavy-Duty Metal Body & 4-Digit Combination – Lock Box for Keys Outside for Home, Rentals & Realtors Extra Large (Black, XXL)

This Iron Lock® Key Lock Box XXL is perfect for homeowners needing a secure way to share keys, Airbnb hosts managing guest access, and realtors facilitating property showings. It’s also a great solution for property managers and caregivers who need reliable, easy access.

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SentrySafe Dark Gray Fireproof and Waterproof Safe with Key Lock, Chest Lock Box with Carrying Handle for Travel, 0.28 Cubic Feet, 6.6 x 15.4 x 14.3 Inches, CFW20201 SentrySafe Dark Gray Fireproof and Waterproof Safe with Key Lock, Chest Lock Box with Carrying Handle for Travel, 0.28 Cubic Feet, 6.6 x 15.4 x 14.3 Inches, CFW20201

This SentrySafe is perfect for anyone who needs to keep important things safe. It’s great for travel and protects against fire and water.

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SentrySafe Fireproof and Waterproof Safe, Black Portable Lock Box with Key Lock and Carrying Handle for Money, Passport, Exterior: 14.3 in W x 13 in D x 6.1 in H, ‎H0100 SentrySafe Fireproof and Waterproof Safe, Black Portable Lock Box with Key Lock and Carrying Handle for Money, Passport, Exterior: 14.3 in W x 13 in D x 6.1 in H, ‎H0100

This fireproof and waterproof safe is perfect for anyone who wants to keep important items safe. It’s great for storing money, passports, or papers in a small, easy-to-carry box.

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Key Lock Box for Outside Wall Mount, Waterproof Spare Key Storage Box, 10-digits Combination Lockbox Push Button Key Keeper Box for Home Indoor & Outdoor Realtors Landlord Property Management Key Lock Box for Outside Wall Mount, Waterproof Spare Key Storage Box, 10-digits Combination Lockbox Push Button Key Keeper Box for Home Indoor & Outdoor Realtors Landlord Property Management

This key lock box is perfect for anyone who needs safe and easy key access. It’s great for homeowners, landlords, realtors, or property managers who want to share keys securely with family, friends, or service providers.

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TTRWIN Key Lock Box for Outside, Resettable 4 Digit Combination Waterproof Lockbox, Key Safe Storage Security Lock Box, 5 Keys Large Capacity Wall Mounted LockBox for House Key, ID Card, Garage Key TTRWIN Key Lock Box for Outside, Resettable 4 Digit Combination Waterproof Lockbox, Key Safe Storage Security Lock Box, 5 Keys Large Capacity Wall Mounted LockBox for House Key, ID Card, Garage Key

This key lock box is perfect for anyone who wants to keep keys safe and easily accessible. It’s great for homeowners, renters, or anyone who needs to share access with family, friends, or service providers.

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Detailed Reviews

Discover the top 10 waterproof key safes carefully selected for durability, security, and ease of use. Each product is expert-reviewed and backed by real customer feedback, ensuring you find the perfect fit for your needs. Whether for home, travel, or outdoor use, this guide makes choosing the best waterproof key safe simple and stress-free.

1. YIYITOOLS Fireproof Lock Box with Key and Combination Lock, Fire Safe Document Box, Portable Fireproof Waterproof Safe for Home,Office,Travel, Secure Storage for Documents,Jewelry,Passport,Cash

YIYITOOLS Fireproof Lock Box with Key and Combination Lock, Fire Safe Document Box, Portable Fireproof Waterproof Safe for Home,Office,Travel, Secure Storage for Documents,Jewelry,Passport,Cash

The YIYITOOLS Fireproof Lock Box keeps your valuables safe from fire and water damage. It’s perfect for home, office, or travel.

Built with double steel and fire-resistant insulation, it withstands extreme conditions. The dual lock system lets you use a key or passcode. Its scratch-resistant coating ensures long-lasting durability.

With spacious storage, it holds documents, jewelry, cash, and more. Its compact size fits in drawers, lockers, or vehicles. Ideal for traveling and outdoor adventures.

Pros Cons
  • Durable fireproof and waterproof protection with steel layers and insulation.
  • Dual lock options: 3-digit code or key for secure access.
  • Sturdy build with scratch-resistant coating for long use.
  • Spacious 12.8”x8.5”x4.1” size fits documents, jewelry, cash.
  • Perfect for home, office, travel with easy portability.
  • Heavy to carry around for travel.
  • Limited space for larger items.
  • No alarm for break-in attempts.

Perfect For:

This fireproof, waterproof safe is perfect for travelers, homeowners, and office workers. It offers secure storage with a dual lock system to protect documents, jewelry, and cash.

Ready to Purchase?

2. GIVERARE Lock Box, 4 Digits Combination Lockbox, Waterproof Outdoor Key Hider for House Key Storage Wall Mount Outside, Resettable Code Safe Security Password Boxes with Mounting Kit-Black

GIVERARE Lock Box, 4 Digits Combination Lockbox, Waterproof Outdoor Key Hider for House Key Storage Wall Mount Outside, Resettable Code Safe Security Password Boxes with Mounting Kit-Black

The GIVERARE Lock Box keeps your keys safe with a 4-digit combination. It’s strong, waterproof, and easy to install anywhere outside.

It holds up to 4 keys, works in all weather, and is perfect for sharing access with family or friends. No rust, no jams, just reliable security.

Pros Cons
  • 4-digit combo offers 10,000 secure options, easy to reset.
  • Waterproof, rust-proof, and hammer-resistant for tough outdoor use.
  • Holds up to 4 keys safely, ideal for travel peace.
  • Quick install on any surface, no tools needed.
  • Limited key size: Only fits shorter keys (under 3 inches).
  • No backup access: Relies solely on the combination.
  • Visible mount: May draw attention when installed outdoors.

Perfect For:

The GIVERARE Lock Box is perfect for anyone who needs a secure, outdoor key storage solution. It’s ideal for homeowners, renters, or businesses who want easy access for family, friends, or pet sitters.

Ready to Purchase?

3. SentrySafe Charcoal Gray Fireproof and Waterproof Safe Box with Key Lock, Portable Chest for Money, Passport, 0.28 Cubic Feet, 6.6 x 15.4 x 14.3 Inches, CHW20221

SentrySafe Charcoal Gray Fireproof and Waterproof Safe Box with Key Lock, Portable Chest for Money, Passport, 0.28 Cubic Feet, 6.6 x 15.4 x 14.3 Inches, CHW20221

The SentrySafe Charcoal Gray Safe Box keeps your important items safe. It is fireproof and waterproof, offering great protection.

This safe box is UL Classified to withstand high temperatures for 30 minutes. It is also ETL Verified to stay dry even when submerged in water for 72 hours. These features give you peace of mind.

A tubular key lock adds extra security. The carrying handle makes it easy to move. Its size is perfect for small valuables.

Pros Cons
  • Fireproof for 30 minutes at 1550°F, protects valuables.
  • Waterproof for 72 hours, safeguards against floods.
  • Key lock adds extra security, prevents unauthorized access.
  • Portable with carrying grips, easy to move.
  • Limited storage space for larger items.
  • No digital lock option for modern security.
  • Heavy to carry when fully loaded.

Perfect For:

This fireproof and waterproof safe is perfect for homeowners, renters, or travelers needing secure storage for important documents, cash, passports, or small valuables. Its key lock and carrying grips offer simple security and easy transport, while the compact size fits essentials like USBs or DVDs.

Ready to Purchase?

4. Hide A Key Cash Hider Sprinkler Head, Key Holder Outdoor/Garden/Yard hiding Vault Case. Waterproof, Corrosion and Impact resistant

Hide A Key Cash Hider Sprinkler Head, Key Holder Outdoor/Garden/Yard hiding Vault Case. Waterproof, Corrosion and Impact resistant

Hide your essentials in plain sight with this Sprinkler Head Key Holder. It’s waterproof, durable, and looks just like a real sprinkler. Perfect for outdoor use in your yard or garden.

Keep keys, cash, or small items safe in its secret compartment. It’s easy to use and blends in seamlessly with your surroundings.

No more lockouts or emergencies without a solution. Built-in keychain lets you access items quickly without removing the vault. Stay prepared with this clever, realistic-looking hider.

Pros Cons
  • Durable PC/ABS material resists water, rust, heat, and impacts.
  • Emergency access to keys or cash when locked out.
  • Hidden compartment fits keys, cash, or small documents securely.
  • Realistic sprinkler design blends invisibly into outdoor spaces.
  • Built-in key chain allows quick, discreet access without full removal.
  • Limited storage for larger items or multiple keys.
  • Visible if not placed carefully in the yard.
  • Risk of damage from lawn equipment or pets.

Perfect For:

This Hide A Key Cash Hider Sprinkler Head is perfect for homeowners who want a clever and discreet way to store a spare key or emergency cash. It’s ideal for anyone who has ever worried about getting locked out or needing quick access to funds.

Ready to Purchase?

5. Luhrjeao Lock Box, Key Lock Box XL Wall Mounted, Durable Waterproof Outdoor Key Safe with Heavy-Duty Metal, 4-Digit Resettable Combination Lock for Home, Rentals, Realtors & Apartment

Luhrjeao Lock Box, Key Lock Box XL Wall Mounted, Durable Waterproof Outdoor Key Safe with Heavy-Duty Metal, 4-Digit Resettable Combination Lock for Home, Rentals, Realtors & Apartment

The Luhrjeao Lock Box is a durable, waterproof key safe perfect for outdoor use. It’s made of heavy-duty metal to withstand tough weather.

With a 4-digit resettable lock, it keeps keys and small items secure. The large interior holds multiple keys, cards, and even cash.

Easy to install in minutes. Bonus accessories included for better organization. Ideal for homes, rentals, and offices.

Pros Cons
  • Holds multiple keys and small items securely in one place.
  • Tough metal build resists weather for long-lasting outdoor use.
  • 10,000 combinations ensure your items stay safe and protected.
  • Quick installation with all tools included for easy setup.
  • No backup access if you forget the code.
  • Mounting holes are visible when the box is removed.
  • Not fireproof, only waterproof and weather-resistant.

Perfect For:

This Luhrjeao Lock Box is perfect for anyone who needs a secure and organized way to store keys. It’s great for homeowners, renters, realtors, and businesses looking for easy access and peace of mind.

Ready to Purchase?

6. Iron Lock® Key Lock Box XXL Wall Mount – Waterproof Outdoor Key Safe with Heavy-Duty Metal Body & 4-Digit Combination – Lock Box for Keys Outside for Home, Rentals & Realtors Extra Large (Black, XXL)

Iron Lock® Key Lock Box XXL Wall Mount – Waterproof Outdoor Key Safe with Heavy-Duty Metal Body & 4-Digit Combination – Lock Box for Keys Outside for Home, Rentals & Realtors Extra Large (Black, XXL)

The Iron Lock® Key Lock Box XXL is built tough. Made from reinforced zinc alloy and stainless steel, it resists cutting, prying, and harsh weather. Its waterproof design keeps keys safe in rain, snow, or extreme heat.

This lock box holds 20–30 house keys plus car key fobs and access cards. The 4-digit resettable combination offers keyless entry for family, guests, or maintenance teams. It’s easy to install with included screws and anchors.

Perfect for homes, rentals, or businesses, it’s a reliable spare key solution. Backed by a lifetime warranty, it ensures long-term peace of mind.

Pros Cons
  • Ultra-durable and waterproof design withstands harsh weather and forced entry attempts.
  • Easy 4-digit code allows keyless access for family, guests, or renters.
  • Extra-large capacity holds up to 30 keys, car fobs, and access cards.
  • Tamper-resistant lock and lifetime warranty ensure long-term security and reliability.
  • Larger size might be too bulky for some spots.
  • Heavy-duty build means a heavier weight.
  • Combination lock could be forgotten by users.

Perfect For:

This Iron Lock® Key Lock Box XXL is perfect for homeowners needing a secure way to share keys, Airbnb hosts managing guest access, and realtors facilitating property showings. It’s also a great solution for property managers and caregivers who need reliable, easy access.

Ready to Purchase?

7. SentrySafe Dark Gray Fireproof and Waterproof Safe with Key Lock, Chest Lock Box with Carrying Handle for Travel, 0.28 Cubic Feet, 6.6 x 15.4 x 14.3 Inches, CFW20201

SentrySafe Dark Gray Fireproof and Waterproof Safe with Key Lock, Chest Lock Box with Carrying Handle for Travel, 0.28 Cubic Feet, 6.6 x 15.4 x 14.3 Inches, CFW20201

The SentrySafe Dark Gray Safe keeps your valuables safe. It is fireproof and waterproof, so your things stay protected.

It has a key lock for privacy, a handle for easy carrying, and space for documents and digital items.

Pros Cons
  • Fireproof and waterproof design keeps your valuables safe.
  • Key lock ensures privacy and security for documents.
  • Easy to carry with a convenient handle for travel.
  • Protects documents, valuables, and digital media from damage.
  • No fire rating specified, so protection limits are unclear.
  • Key lock can be lost, leaving valuables vulnerable.
  • Small size limits storage for larger items or bulk documents.

Perfect For:

This SentrySafe is perfect for anyone who needs to keep important things safe. It’s great for travel and protects against fire and water.

Ready to Purchase?

8. SentrySafe Fireproof and Waterproof Safe, Black Portable Lock Box with Key Lock and Carrying Handle for Money, Passport, Exterior: 14.3 in W x 13 in D x 6.1 in H, ‎H0100

SentrySafe Fireproof and Waterproof Safe, Black Portable Lock Box with Key Lock and Carrying Handle for Money, Passport, Exterior: 14.3 in W x 13 in D x 6.1 in H, ‎H0100

Protect your valuables with the SentrySafe Fireproof and Waterproof Safe. This black portable lock box keeps important items safe from fire and water damage. It’s perfect for money, passports, and papers.

The key lock ensures privacy and security, while the carrying handle makes it easy to move. Its compact size fits anywhere, offering reliable protection for your essentials.

Pros Cons
  • Fireproof for 30 minutes at 1500° F—protects valuables.
  • Waterproof for 72 hours in 8 inches of water—flood-ready.
  • Portable with carrying handle—easy to move.
  • Key lock keeps items secure and private.
  • Small capacity limits storage for larger items or bulk documents.
  • Key lock can be lost, leaving valuables vulnerable to unauthorized access.
  • No digital access means no quick entry in emergencies.

Perfect For:

This fireproof and waterproof safe is perfect for anyone who wants to keep important items safe. It’s great for storing money, passports, or papers in a small, easy-to-carry box.

Ready to Purchase?

9. Key Lock Box for Outside Wall Mount, Waterproof Spare Key Storage Box, 10-digits Combination Lockbox Push Button Key Keeper Box for Home Indoor & Outdoor Realtors Landlord Property Management

Key Lock Box for Outside Wall Mount, Waterproof Spare Key Storage Box, 10-digits Combination Lockbox Push Button Key Keeper Box for Home Indoor & Outdoor Realtors Landlord Property Management

This key lock box is strong and durable, made from aluminum alloy. It’s waterproof and dustproof, perfect for outdoor use.

It’s easy to install with included hardware. The 10-digit combination is simple to set and change.

Use it for home, office, or garage. Great for realtors, landlords, or families needing secure key storage.

Pros Cons
  • Solid aluminum alloy ensures durability and long-lasting use.
  • Waterproof cover protects keys from water and dust.
  • Easy installation with included hardware, no power needed.
  • Changeable code for customizable security and peace of mind.
  • Versatile use for homes, offices, and outdoor spaces.
  • Small storage space, limited to small items.
  • Code reset might be a bit tricky.
  • Aluminum alloy might feel less robust than steel.

Perfect For:

This key lock box is perfect for anyone who needs safe and easy key access. It’s great for homeowners, landlords, realtors, or property managers who want to share keys securely with family, friends, or service providers.

Ready to Purchase?

10. TTRWIN Key Lock Box for Outside, Resettable 4 Digit Combination Waterproof Lockbox, Key Safe Storage Security Lock Box, 5 Keys Large Capacity Wall Mounted LockBox for House Key, ID Card, Garage Key

TTRWIN Key Lock Box for Outside, Resettable 4 Digit Combination Waterproof Lockbox, Key Safe Storage Security Lock Box, 5 Keys Large Capacity Wall Mounted LockBox for House Key, ID Card, Garage Key

The TTRWIN Key Lock Box is a durable and secure solution for storing keys and small items. Made from zinc alloy and heavy-duty steel, it’s built to last and resists rust, corrosion, and weather damage.

It features a 4-digit resettable code with 10,000 combinations for maximum security. A slidable cover protects the dial from dust, rain, and sun, making it perfect for indoor and outdoor use.

Easy to install, holds up to 5 keys, and guaranteed satisfaction. Ideal for homes, garages, or travel.

Pros Cons
  • Sturdy zinc alloy and steel build resists hammering, sawing, and prying.
  • 10,000 password combos and weatherproof cover ensure top security.
  • Holds 5 keys plus ID cards, U-disks, and small items easily.
  • Quick install with included screws and anchors for any sturdy surface.
  • No backup access if you forget the 4-digit code.
  • Mounting requires drilling, not ideal for renters.
  • Limited space for larger items like car remotes.

Perfect For:

This key lock box is perfect for anyone who wants to keep keys safe and easily accessible. It’s great for homeowners, renters, or anyone who needs to share access with family, friends, or service providers.

Ready to Purchase?

Buying Guide

Keeping your keys safe is easy with the right waterproof key safe. We’ve tested top options to help you find the best fit. Let’s explore what to look for!

Factors to Consider When Buying a Waterproof Key Safe:

  • Material: Choose heavy-duty metal or zinc alloy for durability. These materials resist rust, corrosion, and weather damage.
  • Waterproof Design: Ensure it’s fully waterproof to protect keys from rain, snow, and extreme heat.
  • Lock Type: Pick between key locks, combination locks, or dual locks for added security.
  • Size and Capacity: Consider how many keys or small items it holds. Larger safes are great for multiple keys or cards.
  • Ease of Installation: Look for safes with mounting kits or simple hardware for quick setup.
  • Portability: If you travel, choose a compact and lightweight option with a carrying handle.
  • Additional Features: Some safes offer fireproof protection, scratch-resistant coatings, or secret compartments for extra versatility.