Health care · County · Illinois
Medical and dental practices in Johnson County, IL
How Johnson County, IL compares with other counties and the U.S. for medical and dental practices: competitors, household spending, official counts and growth.
Groundwork market score · out of 100
Score 74 out of 100: Upper middle
Ranked #220 of 2,394 scored counties
#6 of 87 scored counties in Illinois
- Listings
- 6
- 3 chain locations (50%)
- Official establishments
- n/a
- Fewer than 3, or not published
- Household spending a year
- $5.3M
- On medical and dental services · $1,281 a household
- Spending per listing
- $876K
- 5.7 times the U.S.
- Listings per 10k households
- 14.6
- 83% below the U.S.
- Population, 2025
- 13,363
- +0.4% since 2020
See the medical and dental practices around any address in Johnson 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 Johnson 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
The Groundwork market score for medical and dental practices in Johnson County is 74 (upper middle), #220 of 2,394 scored counties and #6 of 87 scored counties in Illinois. That puts it in the top 10% of counties for medical and dental practices.
Households in Johnson County spend about $5.3M a year on medical and dental services, or $1,281 per household, in line with the U.S. average. Spread across 6 medical and dental practices, that is $876K per practice, 5.7 times the U.S. figure of $152K.
There are 6 medical and dental practices on map listings in Johnson County as of September 2026. 3 of them (50%) are chain locations, against 11% across the U.S. That is 14.6 per 10,000 households, 83% below the U.S. rate of 84.5.
Official counts don’t publish a figure for offices of physicians, dentists, chiropractors, optometrists and therapists, and urgent care centers in Johnson County, since they leave out counts under 3. Population estimates put the population change in Johnson County from 2020 to 2025 at +0.4%, slower than the U.S. (+3.1%).
How Johnson County compares
The same measures for Illinois 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 | Johnson County | Illinois | U.S. |
|---|---|---|---|
| Listings per 10k households | 14.6 | 102.3 | 84.5 |
| Spending per listing | $876K | $148K | $152K |
| Households per official establishment | n/a | 269 | 270 |
| Official establishment growth, 2019–2023 | n/a | +0.1% | +1.5% |
| Population growth, 2020–2025 | +0.4% | −0.6% | +3.1% |
| Spending per household on medical and dental services | $1,281 | $1,517 | $1,288 |
| Median household income | $62,528 | $83,390 | $80,734 |
| Groundwork market score | 74 | 43 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- n/a
- Employees, 2023
- n/a
- Annual payroll, 2023
- n/a
- One-person businesses, 2023
- 0Businesses with no payroll
- Map listings, September 2026
- 63 chain locations
- Listings at the U.S. rate for this spending
- 35The 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 offices of physicians, dentists, chiropractors, optometrists and therapists, and urgent care centers in Johnson 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 Johnson County
- Population, 2025 estimate
- 13,363+0.4% since 2020
- Households
- 4,101
- Median age
- 41.4
- Homes lived in by their owners
- 82%
- Vehicles per household
- 2.0
- Land area
- 344 sq. mi.
- People per square mile
- 39
- Median household income
- $62,528+18.5% vs. 2015–2019, before inflation
- Average household income
- $78,713
- Median home value
- $160,500
- Jobs located here
- 2,158
- Daytime population
- 10,999Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Johnson 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 Johnson 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 Illinois
Every Illinois market ranked →The highest-scoring counties in Illinois for medical and dental practices, numbered among those based in Illinois, with Johnson County marked.
Top counties in Illinois
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Piatt County, IL | 84 | 24 | 34.7 | $441K | +0.6% | #51 of 2,394 |
| 2Cumberland County, IL | 76 | 8 | 19.2 | $700K | −2.1% | #162 of 2,394 |
| 3Kendall County, IL | 76 | 285 | 62.8 | $270K | +9.9% | #184 of 2,394 |
| 4Crawford County, IL | 75 | 32 | 42.7 | $317K | +0.1% | #213 of 2,394 |
| 5Woodford County, IL | 75 | 75 | 51.1 | $304K | −0.8% | #215 of 2,394 |
| 6Johnson County, IL | 74 | 6 | 14.6 | $876K | +0.4% | #220 of 2,394 |
| 7Mercer County, IL | 74 | 21 | 32.0 | $436K | −2.6% | #227 of 2,394 |
| 8Washington County, IL | 74 | 21 | 36.2 | $383K | −1.2% | #229 of 2,394 |
| 9Carroll County, IL | 73 | 20 | 30.4 | $419K | −1.7% | #250 of 2,394 |
| 10Hancock County, IL | 72 | 16 | 21.0 | $618K | −4.4% | #270 of 2,394 |
Other business types in Johnson 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 medical and dental practices are in Johnson County, IL?
As of September 2026, map listings count 6 medical and dental practices in Johnson County. 3 of them (50%) are chain locations. The listings count every outpatient clinic and practice, and urgent care. No official count is published for offices of physicians, dentists, chiropractors, optometrists and therapists, and urgent care centers in Johnson County: counts under 3 are left out.
How much do households in Johnson County, IL spend on medical and dental services?
About $5.3M a year, or $1,281 per household. That is in line with the U.S. average (an index of 99, where 100 is the U.S. average). Spread across the 6 medical and dental practices on map listings, it comes to $876K per practice. It is estimated from the incomes of the 4,101 households in Johnson County and national spending patterns by income.
How does Johnson County, IL compare with the U.S. for medical and dental practices?
Johnson County has 14.6 medical and dental practices per 10,000 households, 83% below the U.S. rate of 84.5. Spending per practice is $876K, 5.7 times the U.S. figure of $152K. At the U.S. ratio of medical and dental practices to household spending, Johnson County would have about 35, against 6 on map listings.
How fast is Johnson County, IL growing?
Population estimates put Johnson County at 13,363 people in 2025, up 0.4% since 2020, slower than the U.S. (+3.1%). It has 4,101 households. The median household income in Johnson County is $62,528 a year, 23% below the U.S. median of $80,734. That rose 18.5% 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. Johnson County scores 74 for medical and dental practices (upper middle), #220 of 2,394 scored counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Johnson 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 Johnson County
Screening a site or an acquisition in Johnson 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 Johnson 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.