Health care · County · Washington
Physical therapy clinics in Island County, WA
The physical therapy clinics in Island County, WA, the household spending behind them and how the market ranks against other counties.
Groundwork market score · out of 100
Score 39 out of 100: Lower middle
Ranked #1,009 of 1,422 scored counties
#25 of 26 scored counties in Washington
- Listings
- 25
- 1 chain location (4%)
- Official establishments
- 15
- Businesses with payroll, 2023
- Household spending a year
- $48.7M
- On medical and dental services · $1,353 a household
- Spending per listing
- $1.9M
- 19% below the U.S.
- Listings per 10k households
- 6.9
- 28% above the U.S.
- Population, 2025
- 85,657
- −1.5% since 2020
See the physical therapy clinics around any address in Island County
The site report maps the physical therapy clinics 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 Island 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
Map listings as of September 2026 show 25 physical therapy clinics in Island County. One of them (4%) is a chain location, against 23% across the U.S. That comes to 6.9 for every 10,000 households, 28% above the U.S. rate of 5.4.
Household spending on medical and dental services in Island County comes to about $48.7M a year: $1,353 per household, 5% above the U.S. average. That is about $1.9M of household spending for each clinic on map listings, 19% below the U.S. figure of $2.4M. That spending covers all medical and dental services, which physical therapy clinics share with other businesses in the trade.
Official counts show 15 businesses with payroll classed as physical, occupational and speech therapists in Island County in 2023. That is one for every 2,398 households, against one for every 2,482 across the U.S. Since fiscal 2022, 1 SBA-backed loan worth $404K has gone to businesses classed as physical, occupational and speech therapists in Island County.
Population estimates show Island County declined 1.5% from 2020 to 2025, against +3.1% for the U.S. For physical therapy clinics, Island County has a Groundwork market score of 39 (lower middle): #1,009 of 1,422 scored counties and #25 of 26 scored counties in Washington.
How Island County compares
The same measures for Washington and the whole U.S. Spending per listing divides a year of household spending on all medical and dental services by the physical therapy clinics 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 | Island County | Washington | U.S. |
|---|---|---|---|
| Listings per 10k households | 6.9 | 5.6 | 5.4 |
| Spending per listing | $1.9M | $2.6M | $2.4M |
| Households per official establishment | 2,398 | 2,345 | 2,482 |
| Official establishment growth, 2019–2023 | n/a | +22.7% | +23.1% |
| Population growth, 2020–2025 | −1.5% | +3.6% | +3.1% |
| Spending per household on medical and dental services | $1,353 | $1,446 | $1,288 |
| Median household income | $90,551 | $98,141 | $80,734 |
| Groundwork market score | 39 | 67 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 14 → 15
- Employees, 2023
- 76
- Annual payroll, 2023
- $3.6M
- One-person businesses, 2023
- Not publishedNot published for this business type
- Map listings, September 2026
- 251 chain location
- Listings at the U.S. rate for this spending
- 20The U.S. ratio of listings to household spending, applied here
SBA-backed loans since fiscal 2022
- Loans
- 1
- Amount
- $404K
SBA-backed loans to businesses classed as physical, occupational and speech therapists in Island 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.
Population and households in Island County
- Population, 2025 estimate
- 85,657−1.5% since 2020
- Households
- 35,972
- Median age
- 46.9
- Homes lived in by their owners
- 75%
- Vehicles per household
- 2.1
- Land area
- 209 sq. mi.
- People per square mile
- 416
- Median household income
- $90,551+32.0% vs. 2015–2019, before inflation
- Average household income
- $113,035
- Median home value
- $593,300
- Jobs located here
- 16,025
- Daytime population
- 70,254Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Island 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 physical therapy clinics on map listings by name and distance.
Or open the report at the center of Island County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardPhysical therapy across Washington
Every Washington market ranked →The highest-scoring counties in Washington for physical therapy clinics, numbered among those based in Washington, with Island County marked.
Top counties in Washington
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Mason County, WA | 90 | 6 | 2.3 | $5.6M | +7.8% | #6 of 1,422 |
| 2Franklin County, WA | 81 | 11 | 3.7 | $3.6M | +5.6% | #47 of 1,422 |
| 3Grant County, WA | 79 | 11 | 3.1 | $3.9M | +6.3% | #73 of 1,422 |
| 4Cowlitz County, WA | 79 | 14 | 3.2 | $3.9M | +3.5% | #74 of 1,422 |
| 5Clark County, WA | 77 | 83 | 4.2 | $3.3M | +5.3% | #108 of 1,422 |
| 6Clallam County, WA | 71 | 12 | 3.4 | $3.6M | +1.1% | #199 of 1,422 |
| 7Snohomish County, WA | 69 | 165 | 5.2 | $2.9M | +4.9% | #247 of 1,422 |
| 8Jefferson County, WA | 68 | 7 | 4.3 | $2.9M | +2.7% | #261 of 1,422 |
| 9Lewis County, WA | 67 | 14 | 4.3 | $2.9M | +6.7% | #285 of 1,422 |
| 10Whitman County, WA | 65 | 5 | 2.7 | $4.3M | +1.5% | #318 of 1,422 |
| 25Island County, WA | 39 | 25 | 6.9 | $1.9M | −1.5% | #1,009 of 1,422 |
Other business types in Island 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 physical therapy clinics are in Island County, WA?
There are 25 physical therapy clinics on map listings in Island County as of September 2026. One of them (4%) is a chain location. The listings count physical therapy and rehabilitation clinics. Official counts show 15 businesses with payroll classed as physical, occupational and speech therapists in 2023.
How much do households in Island County, WA spend on medical and dental services?
About $48.7M a year, or $1,353 per household. That is 5% above the U.S. average (an index of 105, where 100 is the U.S. average). Spread across the 25 physical therapy clinics on map listings, it comes to $1.9M per clinic. The spending figure covers all medical and dental services, not only physical therapy clinics. It is estimated from the incomes of the 35,972 households in Island County and national spending patterns by income.
How does Island County, WA compare with the U.S. for physical therapy clinics?
Island County has 6.9 physical therapy clinics per 10,000 households, 28% above the U.S. rate of 5.4. Spending per clinic is $1.9M, 19% below the U.S. figure of $2.4M. At the national ratio of physical therapy clinics to household spending, Island County would have about 20, against 25 on map listings. There is one business with payroll in the industry for every 2,398 households, against one for every 2,482 across the U.S.
How fast is Island County, WA growing?
Population estimates put Island County at 85,657 people in 2025, down 1.5% since 2020, against +3.1% for the U.S. It has 35,972 households. The median household income in Island County is $90,551 a year, 12% above the U.S. median of $80,734. That rose 32.0% from the 2015–2019 survey, 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. Island County scores 39 for physical therapy clinics (lower middle), #1,009 of 1,422 scored counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Island County. It maps the physical therapy clinics 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 physical therapy clinics · All 56 business types in Island County
Screening a site or an acquisition in Island 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 Island 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.