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Storage units in Sun Prairie, WI, and nearby areas

213 available units | 20 facilities

See Local Prices by Unit Size
  • Contactless
    4.6/5 - 22 Reviews

    • Climate-Controlled
    • 24 hour access
    • Drive-Up Access
    5' x 5' Small $80/mo
    10' x 10' Medium $100/mo
    12' x 25' Large $95/mo
  • Contactless
    4.9/5 - 220 Reviews

    • Climate-Controlled
    • Indoor
    • Retail Available
    5' x 5' Small $56/mo
    10' x 10' Medium $151/mo
    10' x 20' Large $290/mo
  • 4.9/5 - 139 Reviews

    • Climate-Controlled
    • Indoor
    • 24 hour access
    5' x 10' Small Contact for pricing
    8' x 15' Medium Contact for pricing
    10' x 20' Large Contact for pricing
  • 4.4/5 - 18 Reviews

    • 24 hour access
    • Drive-Up Access
    • Security Camera
    5' x 10' Small $80/mo
    10' x 10' Medium $110/mo
    10' x 20' Large $150/mo
  • 5/5 - 3 Reviews

    • Drive-Up Access
    • Onsite Manager
    • Security Camera
    10' x 10' Medium $85/mo
    10' x 20' Large $135/mo
  • How much space do you need?

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  • No Photo Available Contactless
    4.8/5 - 50 Reviews

    • Climate-Controlled
    • Indoor
    • 24 hour access
    5' x 10' Small $95/mo
    10' x 15' Medium $140/mo
    12' x 40' Large $100/mo
  • 4.6/5 - 35 Reviews

    • Climate-Controlled
    • 24 hour access
    • Drive-Up Access
    5' x 5' Small $75/mo
    10' x 10' Medium $110/mo
    10' x 20' Large $155/mo
  • 4.7/5 - 36 Reviews

    • Climate-Controlled
    • 24 hour access
    • Drive-Up Access
    5' x 5' Small $80/mo
    10' x 10' Medium $100/mo
    10' x 20' Large $135/mo
  • Contactless
    4.9/5 - 123 Reviews

    • Climate-Controlled
    • Indoor
    • Retail Available
    5' x 4' Small $56/mo
    10' x 10' Medium $157/mo
    10' x 20' Large $294/mo
  • 4.8/5 - 80 Reviews

    • Climate-Controlled
    • Indoor
    • 24 hour access
    5' x 10' Small Contact for pricing
    8' x 15' Medium Contact for pricing
    10' x 20' Large Contact for pricing
  • Contactless

    • 24 hour access
    • Drive-Up Access
    • Retail Available
    5' x 10' Small $80/mo
    10' x 10' Medium $110/mo
    10' x 20' Large $140/mo
  • Contactless
    4.3/5 - 28 Reviews

    • 24 hour access
    • Drive-Up Access
    • Truck Rentals
    5' x 10' Small $79/mo
    10' x 10' Medium $99/mo
    10' x 20' Large $159/mo
  • 4.8/5 - 11 Reviews

    • 24 hour access
    • Drive-Up Access
    • Security Camera
    10' x 10' Medium $95/mo
    10' x 20' Large $152/mo
  • 3.4/5 - 40 Reviews

    • Climate-Controlled
    • Indoor
    • 24 hour access
    3' x 4' Small $35/mo
    10' x 10' Medium $109/mo
    12' x 20' Large $199/mo
  • 4.6/5 - 23 Reviews

    • Drive-Up Access
    • Unstaffed Location
    • Credit Cards Accepted
    5' x 10' Small $75/mo
    10' x 10' Medium $105/mo
    10' x 20' Large $150/mo
  • 4.5/5 - 17 Reviews

    • Drive-Up Access
    • Onsite Manager
    • Security Camera
    8' x 10' Small $90/mo
    10' x 10' Medium $110/mo
    10' x 20' Large $160/mo
  • 4/5 - 6 Reviews

    • 24 hour access
    • Drive-Up Access
    • Onsite Manager
  • 4.5/5 - 53 Reviews

    • 24 hour access
    • Drive-Up Access
    • Onsite Manager
    10' x 10' Medium $90/mo
    10' x 20' Large $125/mo
  • 3.8/5 - 73 Reviews

    • 24 hour access
    • Drive-Up Access
    • Onsite Manager
    5' x 10' Small $45/mo
    10' x 10' Medium $70/mo
    10' x 20' Large $115/mo
  • 4.7/5 - 20 Reviews

    • 24 hour access
    • Drive-Up Access
    • Onsite Manager

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How much is a storage unit in Sun Prairie?

The average price for a storage unit in Sun Prairie, WI is about $194 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$80$64$69
5x10$85$112$99
10x10$98$173$136
10x15$123$187$149
10x20$149$282$206
10x30$188$459$256
Average (All Sizes)$121$213$152
*Average monthly rates for Sun Prairie, WI, in October 2026

How to find the cheapest storage in Sun Prairie?

When looking for cheap storage units in Sun Prairie, timing can make a big difference. Sun Prairie storage prices tend to be lowest in August, averaging around $166. In contrast, July is typically the most expensive time for self storage in Sun Prairie, with rates reaching up to $182.

Price & Availability Index for Sun Prairie Storage Units

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

Monthly storage unit street rates in Sun Prairie
MonthUnitsAverage price
Aug 2025201$166
Sep 2025215$171
Oct 2025215$172
Nov 2025215$173
Dec 2025216$173
Jan 2026216$172
Feb 2026216$170
Mar 2026216$168
Apr 2026218$180
May 2026218$178
Jun 2026219$177
Jul 2026219$182

The chart above offers a clear month-by-month look at Sun Prairie 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 Sun Prairie 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 Sun Prairie, consider renting during the off-season when demand drops and availability improves.

What drives storage prices in Sun Prairie?

Street rates for storage units in Sun Prairie 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.

  • 10x10 storage units in Sun Prairie are available starting from $85 for non-climate-controlled units and $100 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 Sun Prairie begin at $135 for non-climate-controlled spaces and $150 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 Sun Prairie?

Sun Prairie 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 $99/mo
Boat Storage Average price $165/mo

RV Storage

With RV storage in Sun Prairie, 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 $99 per month, but can vary based on size, amenities, and proximity to highways or lakes.

Boat Storage

Boat storage in Sun Prairie provides an ideal off-season home for your watercraft. You can choose between outdoor and indoor climate-controlled storage options. Unit sizes range from 10x20 to 10x30, with average rents around $165 per month, depending on location and features.

Frequently Asked Questions

How much does self storage cost in Sun Prairie?

On average, a Sun Prairie storage unit costs around $194/month. Prices vary by unit size, amenities, and neighborhood. A non-climate-controlled unit typically costs around $191/month, while a climate-controlled unit averages about $208/month.

The lowest storage prices in Sun Prairie start at $56/month for a 5′×5′ self storage unit — perfect for renters seeking budget-friendly options.

The cheapest month to rent storage in Sun Prairie is August, when average rates drop to around $166/month. Booking during this time can help you save more.

In Sun Prairie, climate-controlled storage units are on average 7% more expensive than standard units. While a regular unit might cost around $194/month, a climate-controlled option of the same size would average about $208/month. This premium reflects the added protection from heat and humidity, which is valuable for sensitive items like furniture, electronics, and documents.

Yes, some storage facilities in Sun Prairie 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 452 reviews, storage customers in Sun Prairie rated their experience an impressive 4.8. This excellent score highlights consistently strong satisfaction with Sun Prairie storage facilities, from customer service to overall convenience.