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Storage units in Affton, MO, and nearby areas

439 available units | 20 facilities

See Local Prices by Unit Size
  • Contactless
    4.9/5 - 1496 Reviews

    • Climate-Controlled
    • Indoor
    • 24 hour access
    5' x 5' Small $33/mo
    8' x 20' Medium $112/mo
    13' x 30' Large $180/mo
  • Contactless
    4.6/5 - 389 Reviews

    • Indoor
    • Drive-Up Access
    • Retail Available
    5' x 5' Small $26/mo
    10' x 10' Medium $108/mo
    10' x 20' Large $107/mo
  • Contactless
    4.7/5 - 615 Reviews

    • Climate-Controlled
    • Indoor
    • Drive-Up Access
    5' x 5' Small $27/mo
    10' x 10' Medium $109/mo
    10' x 20' Large $256/mo
  • Contactless
    4.9/5 - 994 Reviews

    • Climate-Controlled
    • Indoor
    • 24 hour access
    5' x 5' Small $48/mo
    10' x 10' Medium $109/mo
    10' x 20' Large $85/mo
  • Contactless
    4.9/5 - 559 Reviews

    • Climate-Controlled
    • Indoor
    • Drive-Up Access
    5' x 4' Small $34/mo
    10' x 10' Medium $140/mo
    10' x 20' Large $256/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
    4.8/5 - 316 Reviews

    • Climate-Controlled
    • Indoor
    • Drive-Up Access
    3' x 7' Small $34/mo
    10' x 10' Medium $131/mo
    10' x 20' Large $139/mo
  • Contactless
    4.9/5 - 478 Reviews

    • Climate-Controlled
    • Indoor
    • 24 hour access
    5' x 5' Small $49/mo
    10' x 10' Medium $174/mo
    10' x 20' Large $109/mo
  • Contactless
    4.9/5 - 689 Reviews

    • Climate-Controlled
    • Indoor
    • Drive-Up Access
    5' x 5' Small $34/mo
    10' x 18' Medium $87/mo
    10' x 20' Large $106/mo
  • 4.8/5 - 112 Reviews

    • Climate-Controlled
    • 24 hour access
    • Drive-Up Access
    6' x 5' Small $67/mo
    10' x 10' Medium $143/mo
    12' x 20' Large $86/mo
  • Contactless
    4.8/5 - 543 Reviews

    • Climate-Controlled
    • Indoor
    • 24 hour access
    5' x 5' Small $43/mo
    10' x 10' Medium $167/mo
    10' x 20' Large $335/mo
  • Contactless
    4.8/5 - 336 Reviews

    • Climate-Controlled
    • Indoor
    • Drive-Up Access
    5' x 5' Small $27/mo
    10' x 10' Medium $151/mo
    10' x 20' Large $198/mo
  • Contactless
    4.8/5 - 267 Reviews

    • Indoor
    • Drive-Up Access
    • Retail Available
    5' x 5' Small $44/mo
    10' x 10' Medium $169/mo
    10' x 20' Large $155/mo
  • 4.5/5 - 135 Reviews

    • Indoor
    • 24 hour access
    • Drive-Up Access
    5' x 5' Small $25/mo
    10' x 10' Medium $65/mo
    10' x 20' Large $116/mo
  • Contactless
    4.9/5 - 853 Reviews

    • Climate-Controlled
    • Indoor
    • 24 hour access
    5' x 5' Small $61/mo
    10' x 10' Medium $152/mo
    10' x 20' Large $283/mo
  • Contactless
    4.1/5 - 255 Reviews

    • Climate-Controlled
    • Indoor
    • Drive-Up Access
    10' x 20' Large $100/mo
  • Contactless
    4.8/5 - 391 Reviews

    • Indoor
    • Drive-Up Access
    • Retail Available
    5' x 10' Small $63/mo
    10' x 17' Medium $101/mo
    10' x 20' Large $133/mo
  • Contactless
    4.8/5 - 353 Reviews

    • Climate-Controlled
    • Indoor
    • Drive-Up Access
    5' x 5' Small $44/mo
    10' x 12' Medium $157/mo
    10' x 20' Large $274/mo
  • Contactless
    4.7/5 - 281 Reviews

    • Climate-Controlled
    • Indoor
    • Retail Available
    10' x 2' Small $22/mo
    10' x 10' Medium $112/mo
    10' x 25' Large $262/mo
  • Contactless
    4.7/5 - 254 Reviews

    • Climate-Controlled
    • Indoor
    • Drive-Up Access
    5' x 5' Small $54/mo
    10' x 10' Medium $113/mo
    10' x 20' Large $223/mo
  • Contactless
    4.6/5 - 155 Reviews

    • Climate-Controlled
    • Indoor
    • Retail Available
    5' x 5' Small $32/mo
    10' x 10' Medium $79/mo
    11' x 20' Large $84/mo

Storage units in nearby cities:

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Browse storage units in all Missouri cities.

How much is a storage unit in Affton?

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$33$39$35
5x10$54$75$67
10x10$117$204$146
10x15$213$272$243
10x20$211$285$241
10x30$210$384$253
Average (All Sizes)$140$210$164
*Average monthly rates for Affton, MO, in October 2026

What drives storage prices in Affton?

Street rates for storage units in Affton 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 Affton start at as low as $26 for non-climate-controlled spaces and $33 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 Affton are available starting from $108 for non-climate-controlled units and $127 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 Affton begin at $107 for non-climate-controlled spaces and $250 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.

Frequently Asked Questions

What is the cheapest storage unit price in Affton right now?

The lowest storage prices in Affton start at $26/month for a 5′×5′ self storage unit — perfect for renters seeking budget-friendly options.

Yes, some storage facilities in Affton 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.