Storage unit prices in Seattle
The average 10x10 storage unit in Seattle rents for $188 a month, about 57% more than the national average. A small 5x5 averages $74, and a 10x20 averages $322. Here is how Seattle prices compare and how to find a better rate.
Quick answer
$188per month, average 10x10 in Seattle
In Seattle, average monthly rents run from $74 for a 5x5 to $322 for a 10x20. The popular 10x10 averages $188, down 5.5% from a year earlier.
Storage unit prices in Seattle
Average advertised street rates in Seattle for August 2026, compared with national averages.
| Unit size | Seattle | U.S. average* |
|---|---|---|
| 5x5 | $74 | $52 |
| 5x10 | $111 | $74 |
| 10x10 | $188 | $120 |
| 10x20 | $322 | $193 |
*U.S. averages are Yardi Matrix national street rates: January 2026 for 5x5, 5x10 and 10x20, and August 2026 for 10x10.
How Seattle compares
A 10x10 unit in Seattle costs about 57% more than the national average of $120. Among the 20 major cities we track, Seattle ranks 17 of 20 from least to most expensive. The average 10x10 rent is down 5.5% from a year earlier.
See every city in Storage unit prices by city.
Climate-controlled storage in Seattle
Climate-controlled units usually cost 10% to 25% more than standard units. Based on the Seattle average, expect roughly $207 to $235 a month for a climate-controlled 10x10. Read Climate-controlled storage cost to see whether you need it.
Fees to add to the monthly rent
Rent is not the only cost. Most facilities add a one-time admin fee (Extra Space Storage, for example, charges $50), require insurance or a protection plan of about $10 to $30 a month, and expect you to bring or buy a disc lock for $10 to $20. Some ask for a deposit, often one month's rent. After move-in specials end, rents commonly rise 5% to 10% every 6 to 18 months.
Ask for the full move-in total, not just the monthly rate. See Storage unit fees and insurance and How much does it cost to rent a storage unit?.
How to find cheaper storage in Seattle
- Compare facilities outside the central city and near highway exits.
- Book online and ask for the online rate in person.
- Rent in fall or winter if you can wait.
- Pick an upper-floor or interior unit.
- Check the rent after any move-in special ends; see Storage unit deals: first month free and $1 specials.
Frequently asked questions
How much is a storage unit in Seattle?
About $188 a month for a 10x10, $74 for a 5x5 and $322 for a 10x20, based on August 2026 average street rates.
Are storage prices going up in Seattle?
The average 10x10 rent in Seattle is down 5.5% from a year earlier, compared with a 2.4% decline nationally.
What is the cheapest storage unit in Seattle?
A 5x5 is the cheapest common size, averaging about $74 a month. Online deals and facilities outside the city center can be lower.
Sources
Prices are averages and typical ranges from published storage market data. Rates change often and vary by facility, so confirm prices and fees before you rent. Storage Unit Costs is not a storage company; read our disclaimer.