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Storage units in SeaTac, WA, and nearby areas

212 available units | 20 facilities

See Local Prices by Unit Size
  • Contactless
    4.8/5 - 144 Reviews

    • Climate-Controlled
    • Indoor
    • Retail Available
    5' x 5' Small $22/mo
    10' x 10' Medium $66/mo
    10' x 20' Large $90/mo
  • 4.2/5 - 78 Reviews

    • Indoor
    • 24 hour access
    • Drive-Up Access
    5' x 5' Small $45/mo
    10' x 10' Medium $185/mo
    10' x 20' Large $135/mo
  • Contactless
    4.4/5 - 52 Reviews

    • Climate-Controlled
    • Indoor
    • Drive-Up Access
  • 4.5/5 - 53 Reviews

    • Drive-Up Access
    • Retail Available
    • Onsite Manager
    4' x 8' Small $60/mo
    10' x 10' Medium $205/mo
    8' x 33' Large $275/mo
  • Contactless
    4.6/5 - 583 Reviews

    • Drive-Up Access
    • Retail Available
    • Onsite Manager
    4' x 4' Small $52/mo
    10' x 10' Medium $137/mo
    10' x 20' Large $172/mo
  • How much space do you need?

    Use our calculator to quickly find the right unit size for your belongings.

    Find My Unit Size
  • Contactless
    4.9/5 - 487 Reviews

    • Indoor
    • 24 hour access
    • Drive-Up Access
    5' x 5' Small $75/mo
    10' x 10' Medium $203/mo
    10' x 20' Large $258/mo
  • Contactless
    4.7/5 - 837 Reviews

    • Climate-Controlled
    • Indoor
    • Drive-Up Access
    5' x 5' Small $54/mo
    10' x 10' Medium $116/mo
    10' x 30' Large $239/mo
  • 4.2/5 - 70 Reviews

    • 24 hour access
    • Drive-Up Access
    • Retail Available
    3' x 4' Small $29/mo
    10' x 10' Medium $239/mo
    10' x 20' Large $198/mo
  • Contactless
    4.7/5 - 467 Reviews

    • Indoor
    • Drive-Up Access
    • Retail Available
    5' x 5' Small $35/mo
    10' x 10' Medium $106/mo
    10' x 25' Large $265/mo
  • Contactless
    4.7/5 - 455 Reviews

    • Indoor
    • Drive-Up Access
    • Retail Available
    5' x 6' Small $60/mo
    10' x 16' Medium $79/mo
    10' x 27' Large $296/mo
  • Contactless
    4.6/5 - 421 Reviews

    • Indoor
    • Drive-Up Access
    • Retail Available
    5' x 6' Small $62/mo
    10' x 10' Medium $143/mo
    10' x 20' Large $277/mo
  • Contactless
    4.7/5 - 434 Reviews

    • Climate-Controlled
    • Indoor
    • Retail Available
    5' x 9' Small $71/mo
    10' x 11' Medium $135/mo
    10' x 20' Large $241/mo
  • Contactless
    4.4/5 - 417 Reviews

    • Indoor
    • Drive-Up Access
    • Retail Available
    5' x 6' Small $46/mo
    10' x 10' Medium $122/mo
    10' x 20' Large $186/mo
  • Contactless
    4.7/5 - 374 Reviews

    • Indoor
    • Drive-Up Access
    • Retail Available
    5' x 5' Small $58/mo
    10' x 15' Medium $195/mo
    10' x 20' Large $190/mo
  • Contactless
    4.6/5 - 144 Reviews

    • Climate-Controlled
    • Indoor
    • Drive-Up Access
    5' x 5' Small $62/mo
    10' x 10' Medium $114/mo
    10' x 20' Large $250/mo
  • Contactless
    4.4/5 - 203 Reviews

    • Climate-Controlled
    • Indoor
    • Onsite Manager
  • Contactless
    4.8/5 - 515 Reviews

    • Indoor
    • Drive-Up Access
    • Retail Available
    5' x 5' Small $60/mo
    10' x 10' Medium $158/mo
    10' x 25' Large $303/mo
  • Contactless
    4.7/5 - 537 Reviews

    • Climate-Controlled
    • Indoor
    • Drive-Up Access
    5' x 5' Small $93/mo
    10' x 10' Medium $164/mo
    10' x 20' Large $208/mo
  • Contactless
    4.5/5 - 210 Reviews

    • Climate-Controlled
    • Indoor
    • Drive-Up Access
  • No Photo Available Contactless
    4.6/5 - 24 Reviews

    • Drive-Up Access
    • Onsite Manager
    • Contactless Renting
    12' x 15' Medium $209/mo
    12' x 20' Large $249/mo

Popular storage types in Seatac:

Storage units in nearby cities:

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How much is a storage unit in SeaTac?

The average price for a storage unit in SeaTac, WA is about $131 per month. Rates vary depending on unit size, amenities, and location.

Smaller units typically cost less, while larger, climate-controlled, or specialty units tend to command a premium.

Average Storage Unit Prices (October 2026)

Unit SizeNon-Climate ControlledClimate ControlledAll Unit Types (Average)
5x5$75$30$45
5x10$139$50$109
10x10$185$70$108
10x15$275$94$154
10x20$230$126$178
10x30$370-$370
Average (All Sizes)$212$74$161
*Average monthly rates for SeaTac, WA, in October 2026

How to find the cheapest storage in Seatac?

When looking for cheap storage units in Seatac, timing can make a big difference. Seatac storage prices tend to be lowest in December, averaging around $153. In contrast, August is typically the most expensive time for self storage in Seatac, with rates reaching up to $196.

Price & Availability Index for Seatac Storage Units

Click any point to view month-specific storage unit prices and availability at local facilities.

Monthly storage unit street rates in Seatac
MonthUnitsAverage price
Aug 202549$196
Sep 202565$162
Oct 202569$157
Nov 202571$154
Dec 202571$153
Jan 202671$154
Feb 202671$157
Mar 202672$164
Apr 202672$160
May 202672$154
Jun 202672$164
Jul 202672$164

The chart above offers a clear month-by-month look at Seatac storage rental prices, helping you see exactly when it's cheapest to book a unit. By planning and renting during the low-demand months, you'll increase your chances of locking in the best deal on storage.

These seasonal shifts in self storage costs in Seatac are closely tied to moving trends. Summer is peak moving season, which drives demand - and prices - higher. If you want to secure the most affordable storage in Seatac, consider renting during the off-season when demand drops and availability improves.

What drives storage prices in SeaTac?

Street rates for storage units in SeaTac vary by unit size, facility location, and local demand. Added features like climate control, 24/7 access, and enhanced security can affect monthly costs. Discounts for long-term rentals or first-time customers may also reduce overall rates.

  • 5x5 storage units in SeaTac start at as low as $45 for non-climate-controlled spaces and $22 for climate-controlled ones. This is the most affordable option for those needing extra space for boxes, small furniture, or seasonal décor.
  • 10x10 storage units in SeaTac are available starting from $185 for non-climate-controlled units and $66 for climate-controlled options. As the most rented unit size, it's a cost-effective solution that fits the contents of a one-bedroom apartment, ideal for moving or remodeling projects.
  • 10x20 storage units in SeaTac begin at $135 for non-climate-controlled spaces and $90 for climate-controlled ones. These are the lowest rates for large units, which can accommodate furniture from a multi-room home or even a vehicle, offering both space and great value.

Minimum prices are based on active listings in November, 2026.

Actual rates may vary depending on market availability and facility pricing updates.

What types of specialized storage can you rent in SeaTac?

SeaTac offers a variety of specialized storage options designed for vehicles and recreational equipment. Whether you need a secure spot for your car, RV, or boat, local facilities provide outdoor, covered, and indoor climate-controlled spaces to keep your investment protected year-round.

RV Storage Average price $170/mo

Car Storage

Car storage in SeaTac offers a safe, convenient way to keep vehicles off your driveway when not in use. Choose between outdoor (open or covered) and indoor storage. Unit sizes typically range from 10’x15’ for compact cars to 10’x30’ for larger trucks, with rates averaging around $135 per month.

RV Storage

With RV storage in SeaTac, you can park your motorhomes and trailers securely between trips. Facilities offer options from outdoor parking to fully enclosed, climate-controlled units. Prices average around $170 per month, but can vary based on size, amenities, and proximity to highways or lakes.

Frequently Asked Questions

How much does self storage cost in SeaTac?

On average, a SeaTac storage unit costs around $131/month. Prices vary by unit size, amenities, and neighborhood. A non-climate-controlled unit typically costs around $147/month, while a climate-controlled unit averages about $102/month.

The lowest storage prices in SeaTac start at $22/month for a 5′×5′ self storage unit — perfect for renters seeking budget-friendly options.

The cheapest month to rent storage in SeaTac is December, when average rates drop to around $153/month. Booking during this time can help you save more.

In SeaTac, climate-controlled storage can actually be cheaper than standard units, with average rates about 22% lower. This makes them a smart choice for protecting items from heat and humidity at a lower cost.

Yes, some storage facilities in SeaTac offer 24/7 access so you can reach your unit anytime. Before renting, check the facility's business hours or access policy to ensure it matches your schedule. Round-the-clock access is ideal if you need flexibility or plan to visit your unit outside standard hours.

Based on 274 reviews, storage customers in SeaTac rated their experience an impressive 4.5. This excellent score highlights consistently strong satisfaction with SeaTac storage facilities, from customer service to overall convenience.