Self-Storage Facilities in King County, WA — Market Data (2023)
138 self-storage facilities operate in King County, WA, based on 2023 U.S. Census Bureau County Business Patterns (CBP) data — the same establishment counts the federal government uses for economic statistics.
Market density
That works out to 0.608 establishments per 10,000 residents, 9.7% above the national average of 0.5543 per 10,000 residents for self-storage facilities. Markets with lower density have fewer competitors per capita; markets with higher density have more.
Market data
| Metric | Value |
|---|---|
| Establishments | 138 |
| Density (per 10,000 residents) | 0.608 |
| Employment | 324 |
| Annual payroll | $15,406,000 |
| Average business size (employees/establishment) | 2.3 |
| County population (2023) | 2,271,380 |
Less saturated nearby markets
These counties have a lower self-storage facilities density than King County — fewer competitors per capita for the same industry.
- Suffolk County, NY: 0.604 per 10,000 residents (92 establishments)
- Franklin County, OH: 0.603 per 10,000 residents (80 establishments)
- San Diego County, CA: 0.596 per 10,000 residents (195 establishments)
- Orange County, CA: 0.59 per 10,000 residents (185 establishments)
See the full Self-Storage Facilities by county ranking for all 45 counties with available data.
Other industries in King County, WA
Establishment counts and density for other tracked business types in King County, WA, 2023 CBP.
- Full-Service Restaurants: 2,618 (11.526/10k)
- Limited-Service Restaurants: 1,771 (7.797/10k)
- Home Remodelers: 1,651 (7.269/10k)
- Dentists: 1,434 (6.313/10k)
- Doctors Offices: 1,052 (4.632/10k)
- Coffee Shops: 1,000 (4.403/10k)
- Child Day Care Centers: 994 (4.376/10k)
- Hair Salons: 856 (3.769/10k)
- Landscaping Companies: 843 (3.711/10k)
- Grocery Stores: 499 (2.197/10k)
- Auto Repair Shops: 452 (1.99/10k)
- Nail Salons: 434 (1.911/10k)
- Gyms and Fitness Centers: 422 (1.858/10k)
- Chiropractors: 404 (1.779/10k)
- Bars: 342 (1.506/10k)
- Sports and Recreation Instruction: 316 (1.391/10k)
- Veterinary Clinics: 276 (1.215/10k)
- Pet Grooming and Boarding: 217 (0.955/10k)
- Tax Preparation Services: 212 (0.933/10k)
- Auto Body Shops: 210 (0.925/10k)
- Optometrists: 198 (0.872/10k)
- Family Clothing Stores: 188 (0.828/10k)
- Dry Cleaners: 136 (0.599/10k)
- Bakeries: 98 (0.431/10k)
- Car Washes: 96 (0.423/10k)
- Barbershops: 80 (0.352/10k)
- Florists: 62 (0.273/10k)
- Funeral Homes: 33 (0.145/10k)
- Weight Loss Centers: 25 (0.11/10k)
Frequently asked questions
How many self-storage facilities are there in King County, WA?
138 self-storage facilities operate in King County, WA, according to 2023 U.S. Census Bureau County Business Patterns data.
Is the self-storage facilities market in King County, WA saturated compared to the national average?
King County, WA has 0.608 self-storage facilities per 10,000 residents, which is 9.7% above the national average of 0.5543 per 10,000 residents. That means more competitors per capita than the typical U.S. county.
What is the average size of a self-storage facilitie business in King County, WA?
The average self-storage facilitie business in King County, WA has about 2.3 employees (324 total employment ÷ 138 establishments).
Are there less saturated nearby markets for self-storage facilities?
Yes — Suffolk County, NY has a lower density (0.604 per 10,000 residents) than King County, WA, along with 3 other nearby counties listed below.