Fitness and classes · County · Washington
Gyms in King County, WA
Competitor counts, household spending and official business counts for gyms in King County, WA, set against other counties and the U.S.
Groundwork market score · out of 100
Score 70 out of 100: Upper middle
Ranked #220 of 1,792 scored counties
#15 of 29 scored counties in Washington
- Listings
- 782
- 230 chain locations (29%)
- Official establishments
- 422
- All fitness and recreational sports centers · +0.5% since 2019
- Household spending a year
- $1.7B
- On memberships, classes and admissions · $1,763 a household
- Spending per listing
- $2.1M
- 63% above the U.S.
- Listings per 10k households
- 8.3
- 9% above the U.S.
- Population, 2025
- 2,344,939
- +3.1% since 2020
See the gyms around any address in King County
The site report maps the gyms on map listings near the address, by name and distance, and sizes the households and spending around it. Or open the report at the center of King County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardSurvey estimates 2020–2024 · population estimates 2025 · official business counts 2023 · map listings September 2026 · Data credits · How we measure
What this means
At $1,763 per household (79% above the U.S. average), households in King County spend about $1.7B a year on memberships, classes and admissions. Spread across 782 gyms, that is $2.1M per gym, 63% above the U.S. figure of $1.3M. The spending figure covers all memberships, classes and admissions, not only gyms.
King County has 782 gyms on map listings as of September 2026. 230 of them (29%) are chain locations, against 28% across the U.S. That comes to 8.3 for every 10,000 households, 9% above the U.S. rate of 7.6.
Official counts show 422 businesses with payroll classed as fitness and recreational sports centers in King County in 2023, up 0.5% from 2019. That is one for every 2,230 households, against one for every 3,109 across the U.S. That count covers all fitness and recreational sports centers (yoga, Pilates and fitness studios included), not only gyms. Since fiscal 2022, 56 SBA-backed loans worth $26.3M have gone to businesses classed as fitness and recreational sports centers in King County.
Population estimates put the population change in King County from 2020 to 2025 at +3.1%, in step with the U.S. (+3.1%). The Groundwork market score for gyms in King County is 70 (upper middle), #220 of 1,792 scored counties and #15 of 29 scored counties in Washington. That puts it in the top quarter of counties.
How King County compares
The same measures for Washington and the whole U.S. Spending per listing divides a year of household spending on all memberships, classes and admissions by the gyms counted, so it measures the demand for each competitor, not any business’s revenue. Households per establishment does the same with the official count.
| Measure | King County | Washington | U.S. |
|---|---|---|---|
| Listings per 10k households | 8.3 | 7.1 | 7.6 |
| Spending per listing | $2.1M | $2M | $1.3M |
| Households per official establishment (all fitness and recreational sports centers) | 2,230 | 2,908 | 3,109 |
| Official establishment growth, 2019–2023 | +0.5% | +6.9% | +5.8% |
| Population growth, 2020–2025 | +3.1% | +3.6% | +3.1% |
| Spending per household on memberships, classes and admissions | $1,763 | $1,386 | $983 |
| Median household income | $124,746 | $98,141 | $80,734 |
| Groundwork market score | 70 | 74 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 420 → 422All fitness and recreational sports centers · +0.5% over the period
- Employees, 2023
- 8,761
- Annual payroll, 2023
- $226.2M
- One-person businesses, 2023
- Not publishedNot published for this business type
- Map listings, September 2026
- 782230 chain locations
- Listings at the U.S. rate for this spending
- 1,275The U.S. ratio of listings to household spending, applied here
SBA-backed loans since fiscal 2022
- Loans
- 56
- Amount
- $26.3M
SBA-backed loans to businesses classed as fitness and recreational sports centers in King County, through June 2026, placed by the borrower’s ZIP code. Official establishments are businesses with payroll; the official counts leave out places with fewer than 3. These official figures cover all fitness and recreational sports centers, not only gyms.
Population and households in King County
- Population, 2025 estimate
- 2,344,939+3.1% since 2020
- Households
- 941,054
- Median age
- 38.8
- Homes lived in by their owners
- 55%
- Vehicles per household
- 1.6
- Land area
- 2,116 sq. mi.
- People per square mile
- 1,081
- Median household income
- $124,746+31.4% vs. 2015–2019, before inflation
- Average household income
- $176,807
- Median home value
- $859,900
- Jobs located here
- 1,503,962
- Daytime population
- 2,645,877Residents who don’t work, plus everyone whose job is here
Looking at a specific site in King County?
These figures cover the whole county. A site report draws rings around one address and counts what’s inside them: households, spending, jobs, and the gyms on map listings by name and distance.
Or open the report at the center of King County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardGyms across Washington
Every Washington market ranked →The highest-scoring counties in Washington for gyms, numbered among those based in Washington, with King County marked.
Top counties in Washington
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Lewis County, WA | 92 | 10 | 3.0 | $3.2M | +6.7% | #4 of 1,792 |
| 2Mason County, WA | 90 | 7 | 2.7 | $4.1M | +7.8% | #9 of 1,792 |
| 3Franklin County, WA | 90 | 15 | 5.0 | $2.3M | +5.6% | #12 of 1,792 |
| 4Grays Harbor County, WA | 83 | 14 | 4.6 | $1.9M | +3.0% | #46 of 1,792 |
| 5Thurston County, WA | 82 | 77 | 6.5 | $1.9M | +2.8% | #48 of 1,792 |
| 6Snohomish County, WA | 81 | 201 | 6.4 | $2.4M | +4.9% | #55 of 1,792 |
| 7Stevens County, WA | 80 | 9 | 4.6 | $2M | +6.6% | #64 of 1,792 |
| 8Cowlitz County, WA | 80 | 27 | 6.1 | $1.6M | +3.5% | #69 of 1,792 |
| 9Clark County, WA | 77 | 126 | 6.4 | $2M | +5.3% | #99 of 1,792 |
| 10Pierce County, WA | 76 | 226 | 6.4 | $2.1M | +2.5% | #118 of 1,792 |
| 15King County, WA | 70 | 782 | 8.3 | $2.1M | +3.1% | #220 of 1,792 |
Other business types in King County
Each with its Groundwork market score here, out of 100, where it has one.
Food and drink
Groceries and convenience
Auto
Beauty and personal care
Fitness and classes
Health care
Child care
Clothing and laundry
Home services
Real estate
Funeral services
Questions
How many gyms are in King County, WA?
Map listings as of September 2026 show 782 gyms in King County. 230 of them (29%) are chain locations. The listings count gyms and fitness centers. Official counts show 422 businesses with payroll classed as fitness and recreational sports centers in 2023, up 0.5% from 2019. The official count takes in all fitness and recreational sports centers, not only gyms: yoga, Pilates and fitness studios are counted too.
How much do households in King County, WA spend on memberships, classes and admissions?
About $1.7B a year, or $1,763 per household. That is 79% above the U.S. average (an index of 179, where 100 is the U.S. average). Spread across the 782 gyms on map listings, it comes to $2.1M per gym. That spending covers all memberships, classes and admissions, which gyms share with other businesses in the trade. It is estimated from the incomes of the 941,054 households in King County and national spending patterns by income.
How does King County, WA compare with the U.S. for gyms?
King County has 8.3 gyms per 10,000 households, 9% above the U.S. rate of 7.6. Spending per gym is $2.1M, 63% above the U.S. figure of $1.3M. At the U.S. ratio of gyms to household spending, King County would have about 1,275, against 782 on map listings. There is one business with payroll in the industry for every 2,230 households, against one for every 3,109 across the U.S. The official count rose 0.5% from 2019 to 2023, against +5.8% for the U.S.
How fast is King County, WA growing?
Population estimates put King County at 2,344,939 people in 2025, up 3.1% since 2020, in step with the U.S. (+3.1%). It has 941,054 households. Median household income in King County is $124,746, 55% above the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 31.4%, before inflation.
What is the Groundwork market score?
The Groundwork market score runs from 0 to 100 and compares a market with others of its kind for one business type: states with states, metro areas with metro areas, small-town markets and counties with their own. It weighs household spending per competitor (35%), households per business with payroll (25%), population growth (20%) and spending power (20%), each ranked against those peers. A higher score means that, taken together, the market has more household spending and more households for each business already there, faster population growth and more spending per household than similar markets. It describes a market, not any one site or deal. King County scores 70 for gyms (upper middle), #220 of 1,792 scored counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in King County. It maps the gyms on map listings near the site and sizes the households and spending within the distance you choose. New accounts get 10 actions over 3 days, no card.
How the score works · Top markets for gyms · All 56 business types in King County
Screening a site or an acquisition in King County?
A site report maps the competitors on map listings near an address and sizes the households and spending around it.
The button opens the report at the center of King County. Signed out, you see a blurred preview; on an account, each report is one action.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
Figures are estimates for research only. Not investment or real estate advice.