Health care · County · New Jersey
Medical and dental practices in Mercer County, NJ
Competitor counts, household spending and official business counts for medical and dental practices in Mercer County, NJ, set against other counties and the U.S.
Groundwork market score · out of 100
Score 40 out of 100: Lower middle
Ranked #1,687 of 2,394 scored counties
#13 of 21 scored counties in New Jersey
- Listings
- 1,380
- 198 chain locations (14%)
- Official establishments
- 614
- −4.1% since 2019
- Household spending a year
- $197.8M
- On medical and dental services · $1,372 a household
- Spending per listing
- $143K
- 6% below the U.S.
- Listings per 10k households
- 95.8
- 13% above the U.S.
- Population, 2025
- 399,289
- +3.3% since 2020
See the medical and dental practices around any address in Mercer County
The site report maps the medical and dental practices 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
Map listings as of September 2026 show 1,380 medical and dental practices in Mercer County. Of those, 198 are chain locations, or 14%, against 11% across the U.S. That is 95.8 per 10,000 households, 13% above the U.S. rate of 84.5.
Household spending on medical and dental services in Mercer County comes to about $197.8M a year: $1,372 per household, 7% above the U.S. average. That works out to $143K per practice, 6% below the U.S. figure of $152K.
In 2023, official counts showed 614 businesses with payroll in Mercer County classed as offices of physicians, dentists, chiropractors, optometrists and therapists, and urgent care centers, down 4.1% from 2019. That is one for every 235 households, against one for every 270 across the U.S. Official counts also show 360 one-person businesses without payroll. Since fiscal 2022, 5 SBA-backed loans worth $3.5M have gone to businesses classed as offices of physicians, dentists, chiropractors, optometrists and therapists, and urgent care centers in Mercer County.
Population estimates put the population change in Mercer County from 2020 to 2025 at +3.3%, in step with the U.S. (+3.1%). For medical and dental practices, Mercer County has a Groundwork market score of 40 (lower middle): #1,687 of 2,394 scored counties and #13 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 medical and dental practices 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 | 95.8 | 94.0 | 84.5 |
| Spending per listing | $143K | $147K | $152K |
| Households per official establishment | 235 | 213 | 270 |
| Official establishment growth, 2019–2023 | −4.1% | −2.8% | +1.5% |
| 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 | 40 | 39 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 640 → 614−4.1% over the period
- Employees, 2023
- 5,797
- Annual payroll, 2023
- $462.3M
- One-person businesses, 2023
- 360Businesses with no payroll
- Map listings, September 2026
- 1,380198 chain locations
- Listings at the U.S. rate for this spending
- 1,297The U.S. ratio of listings to household spending, applied here
SBA-backed loans since fiscal 2022
- Loans
- 5
- Amount
- $3.5M
SBA-backed loans to businesses classed as offices of physicians, dentists, chiropractors, optometrists and therapists, and urgent care centers 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 medical and dental practices 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 cardDoctors, dentists and clinics across New Jersey
Every New Jersey market ranked →The highest-scoring counties in New Jersey for medical and dental practices, 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 | 56 | 1,656 | 55.3 | $241K | +1.8% | #910 of 2,394 |
| 2Sussex County, NJ | 54 | 400 | 69.2 | $207K | +2.9% | #1,012 of 2,394 |
| 3Salem County, NJ | 50 | 151 | 60.8 | $196K | +2.3% | #1,180 of 2,394 |
| 4Cape May County, NJ | 47 | 265 | 59.0 | $219K | −1.7% | #1,321 of 2,394 |
| 5Warren County, NJ | 47 | 359 | 79.1 | $165K | +3.2% | #1,338 of 2,394 |
| 6Hunterdon County, NJ | 46 | 481 | 94.6 | $168K | +2.3% | #1,379 of 2,394 |
| 7Burlington County, NJ | 46 | 1,581 | 89.2 | $158K | +4.3% | #1,384 of 2,394 |
| 8Ocean County, NJ | 43 | 1,885 | 77.3 | $165K | +5.6% | #1,530 of 2,394 |
| 9Somerset County, NJ | 43 | 1,334 | 102.0 | $157K | +3.5% | #1,541 of 2,394 |
| 10Gloucester County, NJ | 43 | 1,019 | 90.5 | $151K | +3.3% | #1,545 of 2,394 |
| 13Mercer County, NJ | 40 | 1,380 | 95.8 | $143K | +3.3% | #1,687 of 2,394 |
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
- Doctors, dentists and clinics40
- Dentists and orthodontists40
- Primary care and pediatrics49
- Urgent care and walk-in clinics59
- Chiropractors72
- Physical therapy48
- Optometrists and eye care56
Child care
Clothing and laundry
Home services
Real estate
Funeral services
Questions
How many medical and dental practices are in Mercer County, NJ?
There are 1,380 medical and dental practices on map listings in Mercer County as of September 2026. 198 of them (14%) are chain locations. The listings count every outpatient clinic and practice, and urgent care. Official counts show 614 businesses with payroll classed as offices of physicians, dentists, chiropractors, optometrists and therapists, and urgent care centers in 2023, down 4.1% from 2019. Another 360 one-person businesses have no payroll, by official counts.
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 1,380 medical and dental practices on map listings, it comes to $143K per practice. 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 medical and dental practices?
Mercer County has 95.8 medical and dental practices per 10,000 households, 13% above the U.S. rate of 84.5. Spending per practice is $143K, 6% below the U.S. figure of $152K. At the national ratio of medical and dental practices to household spending, Mercer County would have about 1,297, against 1,380 on map listings. There is one business with payroll in the industry for every 235 households, against one for every 270 across the U.S. The official count fell 4.1% from 2019 to 2023, against +1.5% 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 40 for medical and dental practices (lower middle), #1,687 of 2,394 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 medical and dental practices 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 medical and dental practices · 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.