Health care · County · New Hampshire
Physical therapy clinics in Merrimack County, NH
How Merrimack County, NH 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 41 out of 100: Lower middle
Ranked #961 of 1,422 scored counties
#8 of 9 scored counties in New Hampshire
- Listings
- 44
- 4 chain locations (9%)
- Official establishments
- 28
- +16.7% since 2019
- Household spending a year
- $79M
- On medical and dental services · $1,298 a household
- Spending per listing
- $1.8M
- 25% below the U.S.
- Listings per 10k households
- 7.2
- 33% above the U.S.
- Population, 2025
- 158,078
- +2.6% since 2020
See the physical therapy clinics around any address in Merrimack 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 Merrimack 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
Household spending on medical and dental services in Merrimack County comes to about $79M a year: $1,298 per household, in line with the U.S. average. Spread across 44 physical therapy clinics, that is $1.8M per clinic, 25% below the U.S. figure of $2.4M. The spending figure covers all medical and dental services, not only physical therapy clinics.
Merrimack County has 44 physical therapy clinics on map listings as of September 2026. Of those, 4 are chain locations, or 9%, against 23% across the U.S. That comes to 7.2 for every 10,000 households, 33% above the U.S. rate of 5.4.
The official count of businesses with payroll classed as physical, occupational and speech therapists in Merrimack County was 28 in 2023, up 16.7% from 2019. That is one for every 2,175 households, against one for every 2,482 across the U.S.
Population estimates put the population change in Merrimack County from 2020 to 2025 at +2.6%, slower than the U.S. (+3.1%). The Groundwork market score for physical therapy clinics in Merrimack County is 41 (lower middle), #961 of 1,422 scored counties and #8 of 9 scored counties in New Hampshire.
How Merrimack County compares
The same measures for New Hampshire 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 | Merrimack County | New Hampshire | U.S. |
|---|---|---|---|
| Listings per 10k households | 7.2 | 7.0 | 5.4 |
| Spending per listing | $1.8M | $1.9M | $2.4M |
| Households per official establishment | 2,175 | 2,492 | 2,482 |
| Official establishment growth, 2019–2023 | +16.7% | +16.2% | +23.1% |
| Population growth, 2020–2025 | +2.6% | +2.7% | +3.1% |
| Spending per household on medical and dental services | $1,298 | $1,333 | $1,288 |
| Median household income | $97,004 | $99,031 | $80,734 |
| Groundwork market score | 41 | 40 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 24 → 28+16.7% over the period
- Employees, 2023
- 150
- Annual payroll, 2023
- $7.2M
- One-person businesses, 2023
- Not publishedNot published for this business type
- Map listings, September 2026
- 444 chain locations
- Listings at the U.S. rate for this spending
- 33The U.S. ratio of listings to household spending, applied here
SBA-backed loans since fiscal 2022
- Loans
- 0
- Amount
- $0
SBA-backed loans to businesses classed as physical, occupational and speech therapists in Merrimack 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 Merrimack County
- Population, 2025 estimate
- 158,078+2.6% since 2020
- Households
- 60,901
- Median age
- 43.1
- Homes lived in by their owners
- 73%
- Vehicles per household
- 2.0
- Land area
- 933 sq. mi.
- People per square mile
- 167
- Median household income
- $97,004+28.1% vs. 2015–2019, before inflation
- Average household income
- $123,673
- Median home value
- $367,600
- Jobs located here
- 83,058
- Daytime population
- 159,180Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Merrimack 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 Merrimack 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 Hampshire
Every New Hampshire market ranked →The highest-scoring counties in New Hampshire for physical therapy clinics, numbered among those based in New Hampshire, with Merrimack County marked.
Top counties in New Hampshire
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Sullivan County, NH | 59 | 7 | 4.2 | $2.8M | +2.1% | #475 of 1,422 |
| 2Belknap County, NH | 57 | 13 | 4.9 | $2.6M | +2.1% | #534 of 1,422 |
| 3Cheshire County, NH | 55 | 16 | 5.2 | $2.3M | +2.3% | #588 of 1,422 |
| 4Strafford County, NH | 54 | 31 | 6.0 | $2.1M | +3.0% | #627 of 1,422 |
| 5Carroll County, NH | 53 | 10 | 4.6 | $2.7M | +5.0% | #638 of 1,422 |
| 6Grafton County, NH | 52 | 20 | 5.4 | $2.4M | +2.2% | #671 of 1,422 |
| 7Hillsborough County, NH | 52 | 119 | 7.1 | $1.9M | +2.5% | #678 of 1,422 |
| 8Merrimack County, NH | 41 | 44 | 7.2 | $1.8M | +2.6% | #961 of 1,422 |
| 9Rockingham County, NH | 41 | 128 | 10.0 | $1.4M | +3.0% | #971 of 1,422 |
Other business types in Merrimack 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 Merrimack County, NH?
Map listings as of September 2026 show 44 physical therapy clinics in Merrimack County. 4 of them (9%) are chain locations. The listings count physical therapy and rehabilitation clinics. Official counts show 28 businesses with payroll classed as physical, occupational and speech therapists in 2023, up 16.7% from 2019.
How much do households in Merrimack County, NH spend on medical and dental services?
About $79M a year, or $1,298 per household. That is in line with the U.S. average (an index of 101, where 100 is the U.S. average). Spread across the 44 physical therapy clinics on map listings, it comes to $1.8M 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 60,901 households in Merrimack County and national spending patterns by income.
How does Merrimack County, NH compare with the U.S. for physical therapy clinics?
Merrimack County has 7.2 physical therapy clinics per 10,000 households, 33% above the U.S. rate of 5.4. Spending per clinic is $1.8M, 25% below the U.S. figure of $2.4M. At the U.S. ratio of physical therapy clinics to household spending, Merrimack County would have about 33, against 44 on map listings. There is one business with payroll in the industry for every 2,175 households, against one for every 2,482 across the U.S. The official count rose 16.7% from 2019 to 2023, against +23.1% for the U.S.
How fast is Merrimack County, NH growing?
Population estimates put Merrimack County at 158,078 people in 2025, up 2.6% since 2020, slower than the U.S. (+3.1%). It has 60,901 households. Median household income in Merrimack County is $97,004, 20% above the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 28.1%, 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. Merrimack County scores 41 for physical therapy clinics (lower middle), #961 of 1,422 scored counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Merrimack 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 Merrimack County
Screening a site or an acquisition in Merrimack 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 Merrimack 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.