Looking for the best waterproof security boxes to keep your valuables safe? We’ve tested and reviewed the top 10 options, offering you a curated list of durable, secure, and easy-to-use choices to protect your important items from water damage and theft.
Keeping your valuables safe is a top priority. Whether it’s important documents, cash, or personal items, a waterproof security box ensures they stay protected from water damage and theft. With so many options available, finding the perfect one can feel overwhelming.
We’ve tested and reviewed the best waterproof security boxes to make your choice easy. From compact lockboxes to large fireproof safes, we’ve got you covered. Discover the top picks that combine durability, security, and ease of use to keep your belongings safe and sound.
List of Top 10 Waterproof Security Boxes
| Image | Title | Best For | Price |
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SentrySafe Black Fireproof and Waterproof Safe, File Folder and Document Box with Key Lock, Ex. 14.3 x 15.5 x 13.5 inches, HD4100 |
This fireproof and waterproof safe is perfect for anyone who wants to protect important papers and valuables. It keeps documents, USBs, and small items safe from fire and floods. |
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SentrySafe Fireproof and Waterproof Lock Box with Key Lock, File Safe with Carrying Handles for Documents, 0.66 Cubic Feet, 14.1 x 16.6 x 13.8 Inches, FHW40100 |
This safe is perfect for anyone who wants simple, strong, and reliable protection for important papers and small items. It’s great for people who need fireproof and waterproof security they can trust. |
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27.56″H Steel Safe Box, 6.0 Cuft Home Safes with Fireproof Waterproof Bag, Digital Security Safes with Programmable Keypad Keys, Smart Alert, Mute Mode, Anti-theft Safety Box for Documents Valuables |
This safe box is perfect for anyone who wants to keep important things safe. It’s great for protecting documents, valuables, and personal items from fire, water, and theft. |
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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 |
This safe is perfect for anyone who needs to protect important items like documents, valuables, or digital media. It’s easy to carry and keeps your things safe from fire and water damage. |
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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 |
This lock box is perfect for anyone who wants to keep keys safe and easily accessible. It’s great for homeowners, renters, or business owners who need to share access with family, friends, or service providers. |
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5.2 Cub Large Fireproof Safes for Home Use, Digital Security Safe Home Safes Fireproof Waterproof with Combination Lock and 3 Removable Shelves, Anti-Theft Fire Safe Box for Document Money Valuables |
This fireproof safe is perfect for anyone who wants to keep important things safe. It’s great for homes, offices, or dorms, protecting documents, money, and valuables from fire, water, and theft. |
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Key Lock Box for Outside – Sturdy and Durable Lock Box for House Key,5 Key Capacity Lockbox for Keys Outdoor,Waterproof Emergency Spare Key Lockbox with Resettable Code for Home,Garage,Airbnb |
This key lock box is perfect for anyone who wants easy, secure access to their home, garage, or Airbnb. It’s great for busy people, families, or hosts who need to share keys safely. |
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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 safe box is perfect for anyone who wants to keep important papers and small valuables protected at home, at work, or on the go. It is great for people who want strong security in a simple, easy way. |
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VALINIRT Fireproof and Waterproof Safe, fire safe document box with Sensor light, Portable Lock Box with Key Lock and Ergonomic Handle, 1 Hour at 1700°F, 72 Hours Waterproof |
This fireproof and waterproof safe is perfect for anyone who wants to protect important items from fire, water, or theft. It’s great for home, office, or travel, keeping documents, electronics, and valuables safe in any situation. |
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1.3 Cuft Safe Box Fireproof Waterproof, Digital Security Safes for Home Use Fire and Water Proof with Combination Lock, Alarm System and Removable Shelf, Anti-Theft Document Safes For Money, Jewelry |
This safe box is perfect for anyone who wants to keep valuables secure at home. It’s great for storing cash, jewelry, documents, or small items you want to protect from theft, fire, or water damage. |
Detailed Reviews
Discover the top 10 waterproof security boxes carefully selected for ultimate protection and peace of mind. Each product is expert-reviewed and customer-approved, ensuring reliable performance and great value. Whether you need fireproof, portable, or high-capacity options, this guide has you covered. Find the perfect waterproof security box to keep your valuables safe and secure.
1. SentrySafe Black Fireproof and Waterproof Safe, File Folder and Document Box with Key Lock, Ex. 14.3 x 15.5 x 13.5 inches, HD4100

The SentrySafe Black Fireproof and Waterproof Safe keeps your important items safe. It protects documents, valuables, DVDs, and USBs from fire and water damage. Its key lock adds extra security for peace of mind.
This document organizer has built-in straps for easy storage. It’s black and fits file folders perfectly. Its size is 14.3 x 15.5 x 13.5 inches, making it compact yet spacious.
| Pros | Cons |
|---|---|
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Perfect For:
This fireproof and waterproof safe is perfect for anyone who wants to protect important papers and valuables. It keeps documents, USBs, and small items safe from fire and floods.
Ready to Purchase?
2. SentrySafe Fireproof and Waterproof Lock Box with Key Lock, File Safe with Carrying Handles for Documents, 0.66 Cubic Feet, 14.1 x 16.6 x 13.8 Inches, FHW40100

The SentrySafe Fireproof and Waterproof Lock Box keeps your important documents and valuables safe. It’s UL Classified to protect against fire and ETL Verified to withstand floods.
This dark gray safe has a sleek look and built-in handles for easy carrying. It holds letter-size files and includes a key lock for extra security.
With 0.66 cubic feet of space, it’s perfect for passports, social security cards, and birth certificates. It weighs 41 pounds and measures 14.1 x 16.6 x 13.8 inches.
| Pros | Cons |
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Perfect For:
This safe is perfect for anyone who wants simple, strong, and reliable protection for important papers and small items. It’s great for people who need fireproof and waterproof security they can trust.
Ready to Purchase?
3. 27.56″H Steel Safe Box, 6.0 Cuft Home Safes with Fireproof Waterproof Bag, Digital Security Safes with Programmable Keypad Keys, Smart Alert, Mute Mode, Anti-theft Safety Box for Documents Valuables

This 27.56″H Steel Safe Box is a heavy-duty home safe with 6.0 cubic feet of storage. It’s perfect for keeping important items like documents, valuables, and keys safe and secure. Its large size makes it ideal for home use.
The safe is made of sturdy cold-rolled steel with a thickened door and locking bolts. It’s impact-resistant and pry-resistant, offering reliable protection. A fireproof and waterproof bag adds extra safety for your belongings.
It features a digital keypad, alarm system, and silent mode. You can mount it to the wall or floor for added security. Removable shelves and LED lights make it easy to organize and access your items.
| Pros | Cons |
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Perfect For:
This safe box is perfect for anyone who wants to keep important things safe. It’s great for protecting documents, valuables, and personal items from fire, water, and theft.
Ready to Purchase?
4. 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’s fireproof and waterproof, so your items stay protected.
It has a key lock for privacy, a handle for easy carrying, and space for documents and digital media. Simple, strong, and ready to go.
| Pros | Cons |
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Perfect For:
This safe is perfect for anyone who needs to protect important items like documents, valuables, or digital media. It’s easy to carry and keeps your things safe from fire and water damage.
Ready to Purchase?
5. 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 easy to use and reset, so no more hiding keys! This lockbox is strong and waterproof, perfect for outdoor use.
It’s built tough with thick ABS material and a sturdy lock. The box won’t rust or break, even in bad weather. It’s safe from tools like hammers or saws.
You can fit up to 4 keys inside, and it’s easy to mount anywhere. The lockbox works well for years without freezing. It’s great for sharing keys with family or friends.
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Perfect For:
This lock box is perfect for anyone who wants to keep keys safe and easily accessible. It’s great for homeowners, renters, or business owners who need to share access with family, friends, or service providers.
Ready to Purchase?
6. 5.2 Cub Large Fireproof Safes for Home Use, Digital Security Safe Home Safes Fireproof Waterproof with Combination Lock and 3 Removable Shelves, Anti-Theft Fire Safe Box for Document Money Valuables

Keep your valuables safe with this large fireproof safe. It’s perfect for home, office, or dorm. Protect documents, cash, and more from theft and damage.
The safe is made of solid steel with strong locks and a pry-resistant door. It has a scratch-resistant finish to keep it looking new.
Unlock it with a digital keypad, emergency keys, or external battery power. It also has an alarm system and silent mode for extra security and convenience.
| Pros | Cons |
|---|---|
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Perfect For:
This fireproof safe is perfect for anyone who wants to keep important things safe. It’s great for homes, offices, or dorms, protecting documents, money, and valuables from fire, water, and theft.
Ready to Purchase?
7. Key Lock Box for Outside – Sturdy and Durable Lock Box for House Key,5 Key Capacity Lockbox for Keys Outdoor,Waterproof Emergency Spare Key Lockbox with Resettable Code for Home,Garage,Airbnb

Keep your keys safe with this sturdy key lock box. Made from high-strength aluminum, it resists hammering, sawing, and rust. Perfect for outdoor use, it’s waterproof and dustproof.
Easily share keys with friends, realtors, or babysitters. Set a custom code and change it anytime for extra security.
Holds up to 7 keys or small items like car keys. Easy to install and use—no power needed. Great for homes, garages, or businesses.
| Pros | Cons |
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Perfect For:
This key lock box is perfect for anyone who wants easy, secure access to their home, garage, or Airbnb. It’s great for busy people, families, or hosts who need to share keys safely.
Ready to Purchase?
8. 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

Protect your valuables with the YIYITOOLS Fireproof Lock Box. It keeps items safe from fire, water, and humidity. The double steel build ensures long-lasting use.
This safe offers dual lock options. Use a key or set a passcode for extra security. Its scratch-resistant design stays in great shape.
With spacious storage, it fits documents, jewelry, and more. Perfect for home, office, or travel, it’s easy to carry and store.
| Pros | Cons |
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Perfect For:
This safe box is perfect for anyone who wants to keep important papers and small valuables protected at home, at work, or on the go. It is great for people who want strong security in a simple, easy way.
Ready to Purchase?
9. VALINIRT Fireproof and Waterproof Safe, fire safe document box with Sensor light, Portable Lock Box with Key Lock and Ergonomic Handle, 1 Hour at 1700°F, 72 Hours Waterproof

The VALINIRT Fireproof and Waterproof Safe keeps your valuables safe in extreme conditions. It protects against fire for 1 hour at 1700°F and stays waterproof for 72 hours even when fully submerged.
This portable safe is lightweight and easy to carry, perfect for home, office, or travel. It has a secure key lock, spacious interior, and a comfort-grip handle for convenient use.
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Perfect For:
This fireproof and waterproof safe is perfect for anyone who wants to protect important items from fire, water, or theft. It’s great for home, office, or travel, keeping documents, electronics, and valuables safe in any situation.
Ready to Purchase?
10. 1.3 Cuft Safe Box Fireproof Waterproof, Digital Security Safes for Home Use Fire and Water Proof with Combination Lock, Alarm System and Removable Shelf, Anti-Theft Document Safes For Money, Jewelry

Keep your valuables safe with this 1.3 Cuft Safe Box. It’s fireproof, waterproof, and pry-proof, made from strong alloy steel. The combination lock and alarm system add extra security for your peace of mind.
The removable shelf and LED light make it easy to organize and find items. You can mount it to the wall or floor for added protection against theft.
| Pros | Cons |
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Perfect For:
This safe box is perfect for anyone who wants to keep valuables secure at home. It’s great for storing cash, jewelry, documents, or small items you want to protect from theft, fire, or water damage.
Ready to Purchase?
Buying Guide
Keeping your valuables safe is easy with the right waterproof security box. Whether for home, office, or travel, these boxes protect against water damage and theft. We’ve tested the best options to help you choose.
Factors to Consider When Buying a Waterproof Security Box:
– Size: Pick a box that fits your important items, like documents or cash. Larger boxes are great for home use, while smaller ones are perfect for travel.
– Material: Look for sturdy materials like steel or ABS plastic for durability and water resistance.
– Lock Type: Choose between key locks, combination locks, or digital keypads based on your security needs and ease of use.
– Waterproof Rating: Ensure the box can handle floods or submersion for long periods if needed.
– Fireproof Feature: Some boxes protect against fire, adding extra safety for documents and valuables.
– Portability: If you travel, pick a lightweight box with handles for easy carrying.
– Mounting Options: For home use, consider boxes that can be mounted to walls or floors for added security.
– Storage Features: Look for removable shelves or organizers to keep items neat and accessible.
– Price: Balance cost with features to find the best value for your needs.
With these tips, you’ll find the perfect waterproof security box to keep your belongings safe and sound.