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Storage units in King County, WA

2,430 available units | 156 facilities

See Local Prices by Unit Size
  • 4/5 - 41 Reviews

    • Indoor
    • Onsite Manager
    • Security Camera
    12' x 25' Large $280/mo
  • Contactless
    4.8/5 - 395 Reviews

    • Climate-Controlled
    • Indoor
    • Drive-Up Access
    4' x 5' Small $56/mo
    10' x 10' Medium $239/mo
    10' x 20' Large $296/mo
  • 4.4/5 - 43 Reviews

    • Indoor
    • Retail Available
    • Onsite Manager
  • Contactless
    4.6/5 - 636 Reviews

    • Indoor
    • Drive-Up Access
    • Retail Available
    5' x 5' Small $50/mo
    10' x 10' Medium $112/mo
    10' x 20' Large $186/mo
  • Contactless
    4.8/5 - 693 Reviews

    • Indoor
    • Drive-Up Access
    • Retail Available
    5' x 5' Small $84/mo
    10' x 10' Medium $216/mo
    10' x 25' Large $441/mo
  • How much space do you need?

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

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  • Contactless
    4.6/5 - 450 Reviews

    • Climate-Controlled
    • Indoor
    • Drive-Up Access
    5' x 5' Small $42/mo
    10' x 10' Medium $134/mo
    10' x 20' Large $286/mo
  • Contactless
    4.5/5 - 391 Reviews

    • Climate-Controlled
    • Indoor
    • Drive-Up Access
    4' x 5' Small $10/mo
    10' x 10' Medium $116/mo
    10' x 20' Large $252/mo
  • Contactless
    4.7/5 - 295 Reviews

    • Climate-Controlled
    • Indoor
    • Drive-Up Access
    8' x 10' Small $210/mo
    10' x 10' Medium $257/mo
  • Contactless
    4.5/5 - 223 Reviews

    • Indoor
    • Drive-Up Access
    • Retail Available
    5' x 5' Small $37/mo
    10' x 10' Medium $109/mo
    11' x 20' Large $229/mo
  • Contactless
    4.6/5 - 557 Reviews

    • Indoor
    • Drive-Up Access
    • Retail Available
    5' x 6' Small $40/mo
    10' x 10' Medium $104/mo
    10' x 25' Large $284/mo
  • Contactless
    4.5/5 - 448 Reviews

    • Climate-Controlled
    • Indoor
    • Drive-Up Access
    5' x 5' Small $80/mo
    10' x 15' Medium $206/mo
    10' x 20' Large $276/mo
  • 4.3/5 - 46 Reviews

    • Climate-Controlled
    • Indoor
    • Retail Available
    5' x 5' Small $46/mo
    10' x 10' Medium $249/mo
    10' x 25' Large $349/mo
  • Contactless
    4.7/5 - 634 Reviews

    • Indoor
    • Drive-Up Access
    • Retail Available
    5' x 5' Small $90/mo
    10' x 10' Medium $172/mo
    10' x 20' Large $218/mo
  • Contactless
    4.8/5 - 144 Reviews

    • Climate-Controlled
    • Indoor
    • Retail Available
    5' x 5' Small $11/mo
    10' x 10' Medium $32/mo
    10' x 27' Large $141/mo
  • 3.9/5 - 66 Reviews

    • Climate-Controlled
    • Indoor
    • Retail Available
    4' x 2' Small $52/mo
  • 4.5/5 - 57 Reviews

    • Indoor
    • Retail Available
    • Onsite Manager
    5' x 5' Small $82/mo
    5' x 20' Medium $192/mo
    10' x 20' Large $348/mo
  • 4.4/5 - 39 Reviews

    • Indoor
    • Drive-Up Access
    • Onsite Manager
    5' x 10' Small $115/mo
    10' x 10' Medium $170/mo
    12' x 27' Large $205/mo
  • Contactless
    4.7/5 - 277 Reviews

    • Climate-Controlled
    • Indoor
    • Drive-Up Access
    5' x 5' Small $101/mo
    10' x 10' Medium $170/mo
    10' x 20' Large $321/mo
  • Contactless
    4.7/5 - 785 Reviews

    • Climate-Controlled
    • Indoor
    • Drive-Up Access
    5' x 5' Small $50/mo
    10' x 10' Medium $136/mo
    10' x 20' Large $250/mo
  • Contactless
    4.3/5 - 335 Reviews

    • Climate-Controlled
    • Indoor
    • Retail Available
    5' x 5' Small $97/mo
    10' x 10' Medium $210/mo
    10' x 20' Large $288/mo

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How much is a storage unit in King County?

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

Average Storage Unit Prices (September 2026)

Unit SizeNon-Climate ControlledClimate ControlledAll Unit Types (Average)
5x5$75$80$78
5x10$113$132$121
10x10$199$217$205
10x15$263$268$265
10x20$330$350$335
10x30$457$526$465
20x30$958-$958
Average (All Sizes)$342$262$347
*Average monthly rates for King County, WA, in September 2026

What drives storage prices in King County?

Street rates for storage units in King County 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 King County start at as low as $26 for non-climate-controlled spaces and $15 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 King County are available starting from $49 for non-climate-controlled units and $74 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 King County begin at $135 for non-climate-controlled spaces and $128 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 October, 2026.

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

Frequently Asked Questions

Can I access my storage unit 24/7 in King County?

Yes, some storage facilities in King County 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.