Health care · County · New Jersey
Physical therapy clinics in Mercer County, NJ
How Mercer County, NJ compares with other counties and the U.S. for physical therapy clinics: competitors, household spending, official counts and growth.
Groundwork market score · out of 100
Score 48 out of 100: Lower middle
Ranked #781 of 1,422 scored counties
#6 of 21 scored counties in New Jersey
- Listings
- 103
- 31 chain locations (30%)
- Official establishments
- 62
- +59.0% since 2019
- Household spending a year
- $197.8M
- On medical and dental services · $1,372 a household
- Spending per listing
- $1.9M
- 20% below the U.S.
- Listings per 10k households
- 7.1
- 31% above the U.S.
- Population, 2025
- 399,289
- +3.3% since 2020
See the physical therapy clinics around any address in Mercer 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 Mercer 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
Households in Mercer County spend about $197.8M a year on medical and dental services, or $1,372 per household, 7% above the U.S. average. That is about $1.9M of household spending for each clinic on map listings, 20% below the U.S. figure of $2.4M. The spending figure covers all medical and dental services, not only physical therapy clinics.
There are 103 physical therapy clinics on map listings in Mercer County as of September 2026. 31 of them (30%) are chain locations, against 23% across the U.S. That comes to 7.1 for every 10,000 households, 31% above the U.S. rate of 5.4.
In 2023, official counts showed 62 businesses with payroll in Mercer County classed as physical, occupational and speech therapists, up 59.0% from 2019. That is one for every 2,324 households, against one for every 2,482 across the U.S. Since fiscal 2022, 4 SBA-backed loans worth $1M have gone to businesses classed as physical, occupational and speech therapists in Mercer County.
Population estimates show Mercer County grew 3.3% from 2020 to 2025, in step with the U.S. (+3.1%). For physical therapy clinics, Mercer County has a Groundwork market score of 48 (lower middle): #781 of 1,422 scored counties and #6 of 21 scored counties in New Jersey.
How Mercer County compares
The same measures for New Jersey 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 | Mercer County | New Jersey | U.S. |
|---|---|---|---|
| Listings per 10k households | 7.1 | 8.2 | 5.4 |
| Spending per listing | $1.9M | $1.7M | $2.4M |
| Households per official establishment | 2,324 | 1,649 | 2,482 |
| Official establishment growth, 2019–2023 | +59.0% | +23.0% | +23.1% |
| Population growth, 2020–2025 | +3.3% | +3.0% | +3.1% |
| Spending per household on medical and dental services | $1,372 | $1,385 | $1,288 |
| Median household income | $100,645 | $103,556 | $80,734 |
| Groundwork market score | 48 | 30 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 39 → 62+59.0% over the period
- Employees, 2023
- 329
- Annual payroll, 2023
- $18.5M
- One-person businesses, 2023
- Not publishedNot published for this business type
- Map listings, September 2026
- 10331 chain locations
- Listings at the U.S. rate for this spending
- 82The U.S. ratio of listings to household spending, applied here
SBA-backed loans since fiscal 2022
- Loans
- 4
- Amount
- $1M
SBA-backed loans to businesses classed as physical, occupational and speech therapists in Mercer 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 Mercer County
- Population, 2025 estimate
- 399,289+3.3% since 2020
- Households
- 144,114
- Median age
- 40.4
- Homes lived in by their owners
- 62%
- Vehicles per household
- 1.6
- Land area
- 225 sq. mi.
- People per square mile
- 1,719
- Median household income
- $100,645+24.2% vs. 2015–2019, before inflation
- Average household income
- $142,372
- Median home value
- $377,700
- Jobs located here
- 262,034
- Daytime population
- 469,892Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Mercer 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 Mercer 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 New Jersey
Every New Jersey market ranked →The highest-scoring counties in New Jersey for physical therapy clinics, numbered among those based in New Jersey, with Mercer County marked.
Top counties in New Jersey
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Hudson County, NJ | 60 | 147 | 4.9 | $2.7M | +1.8% | #448 of 1,422 |
| 2Hunterdon County, NJ | 60 | 33 | 6.5 | $2.4M | +2.3% | #453 of 1,422 |
| 3Warren County, NJ | 54 | 24 | 5.3 | $2.5M | +3.2% | #611 of 1,422 |
| 4Cumberland County, NJ | 54 | 25 | 4.6 | $2.4M | +2.2% | #617 of 1,422 |
| 5Gloucester County, NJ | 53 | 69 | 6.1 | $2.2M | +3.3% | #652 of 1,422 |
| 6Mercer County, NJ | 48 | 103 | 7.1 | $1.9M | +3.3% | #781 of 1,422 |
| 7Essex County, NJ | 46 | 211 | 6.6 | $1.9M | +4.2% | #825 of 1,422 |
| 8Burlington County, NJ | 44 | 133 | 7.5 | $1.9M | +4.3% | #879 of 1,422 |
| 9Sussex County, NJ | 43 | 45 | 7.8 | $1.8M | +2.9% | #908 of 1,422 |
| 10Cape May County, NJ | 42 | 28 | 6.2 | $2.1M | −1.7% | #922 of 1,422 |
Other business types in Mercer 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 Mercer County, NJ?
As of September 2026, map listings count 103 physical therapy clinics in Mercer County. 31 of them (30%) are chain locations. The listings count physical therapy and rehabilitation clinics. Official counts show 62 businesses with payroll classed as physical, occupational and speech therapists in 2023, up 59.0% from 2019.
How much do households in Mercer County, NJ spend on medical and dental services?
About $197.8M a year, or $1,372 per household. That is 7% above the U.S. average (an index of 107, where 100 is the U.S. average). Spread across the 103 physical therapy clinics on map listings, it comes to $1.9M per clinic. That spending covers all medical and dental services, which physical therapy clinics share with other businesses in the trade. It is estimated from the incomes of the 144,114 households in Mercer County and national spending patterns by income.
How does Mercer County, NJ compare with the U.S. for physical therapy clinics?
Mercer County has 7.1 physical therapy clinics per 10,000 households, 31% above the U.S. rate of 5.4. Spending per clinic is $1.9M, 20% below the U.S. figure of $2.4M. At the U.S. ratio of physical therapy clinics to household spending, Mercer County would have about 82, against 103 on map listings. There is one business with payroll in the industry for every 2,324 households, against one for every 2,482 across the U.S. The official count rose 59.0% from 2019 to 2023, against +23.1% for the U.S.
How fast is Mercer County, NJ growing?
Population estimates put Mercer County at 399,289 people in 2025, up 3.3% since 2020, in step with the U.S. (+3.1%). It has 144,114 households. Median household income in Mercer County is $100,645, 25% above the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 24.2%, 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. Mercer County scores 48 for physical therapy clinics (lower middle), #781 of 1,422 scored counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Mercer 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 Mercer County
Screening a site or an acquisition in Mercer 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 Mercer 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.