Groundwork

Health care · County · California

Physical therapy clinics in Marin County, CA

Competitor counts, household spending and official business counts for physical therapy clinics in Marin County, CA, set against other counties and the U.S.

Groundwork market score · out of 100

Score 58 out of 100: Upper middle

Ranked #492 of 1,422 scored counties
#32 of 47 scored counties in California

Listings
48
8 chain locations (17%)
Official establishments
50
+22.0% since 2019
Household spending a year
$181M
On medical and dental services · $1,757 a household
Spending per listing
$3.8M
57% above the U.S.
Listings per 10k households
4.7
13% below the U.S.
Population, 2025
253,694
−2.9% since 2020

See the physical therapy clinics around any address in Marin 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 Marin County. Signed out, you see a blurred preview; on an account, each report is one action.

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Survey 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 48 physical therapy clinics in Marin County. 8 of them (17%) are chain locations, against 23% across the U.S. Per 10,000 households, that is 4.7, 13% below the U.S. rate of 5.4.

At $1,757 per household (36% above the U.S. average), households in Marin County spend about $181M a year on medical and dental services. Spread across 48 physical therapy clinics, that is $3.8M per clinic, 57% above 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 50 businesses with payroll classed as physical, occupational and speech therapists in Marin County in 2023, up 22.0% from 2019. That is one for every 2,060 households, against one for every 2,482 across the U.S. Since fiscal 2022, 1 SBA-backed loan worth $998K has gone to businesses classed as physical, occupational and speech therapists in Marin County.

Population estimates put the population change in Marin County from 2020 to 2025 at −2.9%, against +3.1% for the U.S. The Groundwork market score for physical therapy clinics in Marin County is 58 (upper middle), #492 of 1,422 scored counties and #32 of 47 scored counties in California.

How Marin County compares

The same measures for California 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.

Physical therapy in Marin County, CA compared with California and the U.S.
MeasureMarin CountyCaliforniaU.S.
Listings per 10k households4.74.45.4
Spending per listing$3.8M$3.3M$2.4M
Households per official establishment2,0602,5232,482
Official establishment growth, 2019–2023+22.0%+32.7%+23.1%
Population growth, 2020–2025−2.9%−0.4%+3.1%
Spending per household on medical and dental services$1,757$1,464$1,288
Median household income$149,091$99,122$80,734
Groundwork market score5868

Official counts and lending

Businesses

Official establishments, 2019 to 2023
41 → 50+22.0% over the period
Employees, 2023
233
Annual payroll, 2023
$14.7M
One-person businesses, 2023
Not publishedNot published for this business type
Map listings, September 2026
488 chain locations
Listings at the U.S. rate for this spending
75The U.S. ratio of listings to household spending, applied here

SBA-backed loans since fiscal 2022

Loans
1
Amount
$998K

SBA-backed loans to businesses classed as physical, occupational and speech therapists in Marin 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 Marin County

Population, 2025 estimate
253,694−2.9% since 2020
Households
103,018
Median age
47.7
Homes lived in by their owners
65%
Vehicles per household
1.8
Land area
520 sq. mi.
People per square mile
496
Median household income
$149,091+29.4% vs. 2015–2019, before inflation
Average household income
$232,579
Median home value
$1,507,300
Jobs located here
110,704
Daytime population
260,594Residents who don’t work, plus everyone whose job is here

Looking at a specific site in Marin 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 Marin County. Signed out, you see a blurred preview; on an account, each report is one action.

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Physical therapy across California

Every California market ranked →

The highest-scoring counties in California for physical therapy clinics, numbered among those based in California, with Marin County marked.

Top counties in California

Counties in California ranked for physical therapy clinics by Groundwork market score
MarketScoreListingsPer 10k householdsSpending per listingPopulation growthU.S. rank
1San Benito County, CA9473.4$4.6M+8.6%#2 of 1,422
2Yuba County, CA8672.4$5.1M+8.2%#15 of 1,422
3Madera County, CA85143.1$4.1M+7.4%#18 of 1,422
4San Joaquin County, CA84743.0$4.6M+5.5%#23 of 1,422
5Yolo County, CA81182.3$5.9M+3.1%#44 of 1,422
6Sacramento County, CA791612.8$4.9M+2.0%#69 of 1,422
7Riverside County, CA792783.6$3.9M+5.0%#75 of 1,422
8Amador County, CA7853.1$4.2M+3.2%#86 of 1,422
9Calaveras County, CA7752.7$4.8M+2.8%#101 of 1,422
10Placer County, CA77714.5$3.5M+8.9%#106 of 1,422
32Marin County, CA58484.7$3.8M−2.9%#492 of 1,422

Other business types in Marin County

Each with its Groundwork market score here, out of 100, where it has one.

Questions

How many physical therapy clinics are in Marin County, CA?

There are 48 physical therapy clinics on map listings in Marin County as of September 2026. 8 of them (17%) are chain locations. The listings count physical therapy and rehabilitation clinics. Official counts show 50 businesses with payroll classed as physical, occupational and speech therapists in 2023, up 22.0% from 2019.

How much do households in Marin County, CA spend on medical and dental services?

About $181M a year, or $1,757 per household. That is 36% above the U.S. average (an index of 136, where 100 is the U.S. average). Spread across the 48 physical therapy clinics on map listings, it comes to $3.8M per clinic. The spending figure covers all medical and dental services, not only physical therapy clinics. It is estimated from the incomes of the 103,018 households in Marin County and national spending patterns by income.

How does Marin County, CA compare with the U.S. for physical therapy clinics?

Marin County has 4.7 physical therapy clinics per 10,000 households, 13% below the U.S. rate of 5.4. Spending per clinic is $3.8M, 57% above the U.S. figure of $2.4M. At the national ratio of physical therapy clinics to household spending, Marin County would have about 75, against 48 on map listings. There is one business with payroll in the industry for every 2,060 households, against one for every 2,482 across the U.S. The official count rose 22.0% from 2019 to 2023, against +23.1% for the U.S.

How fast is Marin County, CA growing?

Population estimates put Marin County at 253,694 people in 2025, down 2.9% since 2020, against +3.1% for the U.S. It has 103,018 households. The median household income in Marin County is $149,091 a year, 85% above the U.S. median of $80,734. That rose 29.4% 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. Marin County scores 58 for physical therapy clinics (upper middle), #492 of 1,422 scored counties.

How can I see the market around a specific site?

Run a Groundwork site report on an address in Marin 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 Marin County

Screening a site or an acquisition in Marin 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 Marin 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.