Starting a Dental Practice in St. Louis, MO: Demographics, Competition and Where to Look
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Starting a dental practice in St. Louis, MO: demographics, competition and where to look
If you're deciding where to open a dental practice in St. Louis, the St. Louis County areas dentists research most are already crowded. St. Louis ZIPs 63131, 63122 (Kirkwood), 63141 (Creve Coeur) and 63146 (Maryland Heights), Chesterfield and Maryland Heights draw high research activity from dentists on Dentagraphics and have about 1,500 to 3,000 residents per general practice within 5 miles, fewer than the metro's typical 4,570. Troy and Eureka draw the same high attention and still have 7,730 and 5,866 residents per general practice. The most room is in lower-income areas: St. Louis ZIPs 63137 (Bellefontaine Neighbors) and 63136 have more than 27,000 residents per general practice and incomes under $49,000.
This page puts the verified numbers for the St. Louis metro area and each of its 14 counties and the city of St. Louis in one place, then walks through how to narrow from a county to a specific site. The St. Louis area, as Dentagraphics defines it, covers Bond, Calhoun, Clinton, Jersey, Macoupin, Madison, Monroe and St. Clair counties in Illinois, plus Franklin, Jefferson, Lincoln, St. Charles, St. Louis and Warren counties and the city of St. Louis in Missouri.
What you won't get from an instant report. An automated report can describe one address. It can't tell you where other dentists are already looking, whether the offices nearby actually exist, or whether a busy market is still open. Dentagraphics can: 118,330 practices verified by hand, 12 years of research from more than 10,000 paid customers, and custom reports with handwritten analysis by a demographer.
The St. Louis metro at a glance
| Measure | St. Louis area | US comparison |
|---|---|---|
| Residents | 2,813,250 | |
| Population growth | -0.2% | |
| General dental practices | 631 | |
| Residents per general practice | 4,458 | US average 3,853 |
| Specialty dental practices | 255 | |
| Residents per specialty practice | 11,032 | US average 6,482 |
| Median age | 39.6 | US median 38.5 |
| Median household income | $75,161 | US median $81,604 |
| Below the poverty line | 9.7% | US rate 11.6% |
| Medicaid enrollees | 307,550 | |
| Speaks English at home | 93.3% | US average 78.1% |
| Speaks Spanish at home | 2.2% | US average 13.2% |
| Owner occupied homes | 801,554 | |
| Renter occupied homes | 344,970 | |
| High school graduate or higher | 93% | US rate 90% |
| Bachelor's degree or higher | 36% | US rate 36% |
Source: Dentagraphics, verified practice counts; Census ACS. See the full St. Louis area dental demographics page.
Across the whole metro there are 4,458 residents per general dental practice, above the US average of 3,853, so the area has fewer general practices per resident than the country as a whole. Specialty practices are thinner: 11,032 residents per specialty practice, against a US average of 6,482. A metro average hides a lot, so the county numbers below matter more.
St. Louis area dental competition, county by county
| County | Residents | Population growth | General practices | Residents per general practice | Median household income |
|---|---|---|---|---|---|
| St. Louis County | 994,681 | -0.9% | 293 | 3,395 | $81,742 |
| St. Charles | 426,316 | 5.2% | 103 | 4,139 | $98,932 |
| St. Louis City | 278,670 | -7.6% | 18 | 15,482 | $56,171 |
| Madison, IL | 264,125 | -0.7% | 69 | 3,828 | $73,871 |
| St. Clair, IL | 251,777 | -2.2% | 47 | 5,357 | $72,078 |
| Jefferson | 233,437 | 3.0% | 37 | 6,309 | $79,351 |
| Franklin | 108,009 | 3.2% | 23 | 4,696 | $73,269 |
| Lincoln | 66,564 | 11.7% | 6 | 11,094 | $82,627 |
| Macoupin, IL | 44,087 | -2.0% | 6 | 7,348 | $67,563 |
| Warren | 38,863 | 9.4% | 7 | 5,552 | $75,365 |
| Clinton, IL | 37,231 | 0.9% | 8 | 4,654 | $79,342 |
| Monroe, IL | 35,135 | 0.5% | 7 | 5,019 | $102,378 |
| Jersey, IL | 21,244 | -1.2% | 4 | 5,311 | $78,880 |
| Bond, IL | 16,606 | -0.7% | 3 | 5,535 | $64,587 |
| Calhoun, IL | 4,257 | -4.1% | 0 | No practices | $91,777 |
Source: Dentagraphics county pages, verified practice counts; Census ACS. US average: 3,853 residents per general practice. County figures, including residents and growth, come from each county's own page and may cover a different period than the metro figures (they do not add up exactly to the metro total), so compare counties with each other rather than with the metro.
What the numbers show
Residents per general practice is the simplest saturation measure: the lower the number, the more offices are competing for each resident.
- More practices per resident than the US average: St. Louis County (3,395), Madison, IL (3,828). By this measure these counties are the more saturated part of the metro.
- Fewer practices per resident than the US average: St. Louis City (15,482), Lincoln (11,094), Macoupin, IL (7,348), Jefferson (6,309), Warren (5,552), Bond, IL (5,535), St. Clair, IL (5,357), Jersey, IL (5,311), Monroe, IL (5,019), Franklin (4,696), Clinton, IL (4,654), St. Charles (4,139). By this measure these counties are less saturated.
- No verified general practice: Calhoun County, IL (4,257 residents). A practice there would draw on a small population, so look at the drive-time area rather than the county line.
- Small counts move fast: Bond, IL (3), Clinton, IL (8), Jersey, IL (4), Macoupin, IL (6), Monroe, IL (7), Lincoln (6), Warren (7), St. Louis City (18) have fewer than 20 general practices, so a single new office changes the ratio noticeably. Check the current list before relying on it.
- Growth: Lincoln County shows the highest growth figure in the metro (11.7%). Growth can make a thin market today a reasonable one later, or fill a quiet one with new offices.
A county is still a big place. Two addresses in the same county can look completely different once you draw a drive-time area around each one, which is the next step.
Where dentists are looking, and where there's still room
County averages hide the real story. To get closer, we looked at the St. Louis area town by town, and ZIP code by ZIP code inside the larger cities. For each area we drew a 5-mile circle around it and counted the residents and the general practices our research team has verified inside it. Then we compared that with how much research dentists have done on that area on Dentagraphics over the past 12 months.
Across the metro, the typical 5-mile area has 4,570 residents per general practice. Higher means more residents for each office.
Popular and already crowded
These areas draw the most research from dentists, and they already have more offices per resident than the metro typically does.
| Area | County | Residents per general practice (5 mi) | Median household income | Dentist research activity |
|---|---|---|---|---|
| St. Louis, ZIP 63131 | St. Louis County | 1,455 | $182,658 | High |
| St. Louis, ZIP 63122 (Kirkwood) | St. Louis County | 1,794 | $121,354 | High |
| St. Louis, ZIP 63141 (Creve Coeur) | St. Louis County | 2,052 | $120,093 | High |
| Washington | Franklin | 2,177 | $83,730 | High |
| Chesterfield | St. Louis County | 2,230 | $145,389 | High |
| Godfrey | Madison, IL | 2,736 | $83,904 | High |
| St. Louis, ZIP 63146 (Maryland Heights) | St. Louis County | 2,772 | $82,026 | High |
| Maryland Heights | St. Louis County | 2,993 | $84,657 | High |
Six of the eight are in St. Louis County, and all eight have median household incomes of $82,026 or more, above the metro's $75,161, which is exactly why so many offices have opened there. A new practice here has to win patients away from established ones.
Popular and still open
These areas are also getting attention, and they still have more residents per office than the metro typically does.
| Area | County | Residents per general practice (5 mi) | Median household income | Dentist research activity |
|---|---|---|---|---|
| Troy | Lincoln | 7,730 | $83,476 | High |
| Eureka | St. Louis County | 5,866 | $123,591 | High |
Eureka pairs room with a median household income of $123,591. Expect these to fill in. When many dentists are researching the same open market, the window can close quickly.
Room to grow, little attention
These areas have far more residents per office than the metro typically does, and comparatively few dentists are researching them.
| Area | County | Residents per general practice (5 mi) | Median household income | Dentist research activity |
|---|---|---|---|---|
| St. Louis, ZIP 63137 (Bellefontaine Neighbors) | St. Louis County | 28,585 | $48,834 | Low |
| St. Louis, ZIP 63136 | St. Louis County | 27,892 | $43,962 | Low |
| St. Louis, ZIP 63135 (Ferguson) | St. Louis County | 20,768 | $58,438 | Low |
| St. Louis, ZIP 63115 | St. Louis City | 16,506 | $36,551 | Low |
| East St. Louis | St. Clair, IL | 9,867 | $41,066 | Low |
| St. Louis, ZIP 63121 | St. Louis County | 9,481 | $46,460 | Low |
| St. Louis, ZIP 63111 | St. Louis City | 7,969 | $43,713 | Low |
| St. Louis, ZIP 63104 | St. Louis City | 7,128 | $71,631 | Low |
| St. Louis, ZIP 63118 | St. Louis City | 6,894 | $55,025 | Low |
Eight of the nine have median household incomes below $60,000, well under the metro's $75,161. They are lower-income underserved areas, and they tend to suit Medicaid or community-focused practice models better than fee-for-service. St. Louis ZIP 63104, at $71,631, is the exception.
A high number of residents per office is a reason to look closer, not proof of an opportunity. A few offices just outside the 5-mile line can change the picture, and income, age and your practice model decide whether a market fits.
What this shows
- Attention and crowding overlap in St. Louis County. St. Louis ZIPs 63131, 63122 (Kirkwood) and 63141 (Creve Coeur) and Chesterfield draw high research activity and have 1,455 to 2,230 residents per general practice, against the metro's typical 4,570.
- Two busy markets are still open. Troy (7,730 residents per general practice) and Eureka (5,866) draw high research activity.
- The quiet room is lower-income. St. Louis ZIPs 63137 (Bellefontaine Neighbors), 63136 and 63135 (Ferguson) have more than 20,000 residents per general practice and incomes under $59,000, which points to Medicaid or community-focused models.
How we measured this: residents and household income come from Census ACS data by ZIP code. General practice counts come from Dentagraphics' verified practice database. Each 5-mile area combines the ZIP codes whose centers fall within 5 miles of the town or ZIP code. Research activity reflects how many different dentists researched addresses in each area on Dentagraphics in the past 12 months, with each dentist counted once, grouped into High, Medium and Low. We don't publish raw counts. These figures use a different method from the county table above, so compare areas with each other rather than with the county numbers.
How to narrow from a county to a site
- Define your practice model. General or specialty, fee-for-service, PPO or Medicaid, and the size of office you want. The same county can suit one model and not another.
- Compare counties. Use the tables above to shortlist counties where residents per practice, income and growth fit your model.
- Check drive-time areas around candidate sites. For each lease space or address, look at the population, income, age and nearby practices within a 5, 10 and 15 minute drive, not just a radius.
- Verify the competition by hand. Online maps include closed offices, duplicates and listings that are not clinical practices. Look at each nearby practice yourself, or use a list that a person has already checked.
- Weigh rent against visibility. A cheaper space off the main road can cost you in new patients. Visibility, signage, parking and access are worth paying for up to a point.
- Have a dental attorney review the lease. Term, renewal options, exclusivity, build-out allowance and personal guarantees are where startup costs hide.
Why not rely only on the landlord's or broker's demographics
Landlords and commercial real estate brokers often hand over a demographic summary with a listing. It is a fine starting point, but remember who prepared it: a landlord earns rent once you sign, and a broker is usually paid when the deal closes. Their numbers describe the property they want to lease or sell.
Government business counts have a similar limit. They are useful for a broad picture, but they count establishments by industry code, do not separate general from specialty practices, and do not give you the list of offices you would actually compete with.
Dentagraphics does not broker practices and holds no stake in any location. Our competition counts come from 118,330 US dental practices verified by hand by our research team. Whatever source you use, ask where its competitor count came from and whether a person checked it.
Who you'll need to open a practice in St. Louis
A startup practice takes a small team. These are the roles to line up, and what to ask each one.
- A dental-focused commercial real estate broker, ideally one who represents you as the tenant. A tenant's broker negotiates the lease for you rather than for the landlord. Ask how many dental leases they have done, who pays their commission, and whether they also represent landlords in the area.
- A lender with dental practice financing. A lender that works with dental startups understands build-out, equipment and the months before collections catch up. Ask what they need from you to approve a startup loan, how long any interest-only period lasts, and whether the loan covers build-out, equipment and working capital.
- A dental CPA. An accountant who works mainly with dentists can build your startup budget and set up your books, payroll and taxes. Ask how many startups they have worked with and what overhead they expect in your first year.
- A dental office architect or designer, and a contractor. Dental offices need plumbing, electrical, vacuum and air lines that a general office does not. Ask for recent dental projects you can visit, and whether they will look at a space and estimate the build-out before you sign the lease.
- A dental attorney for the lease and your business entity. Ask them to review the lease term, renewal options, exclusivity, build-out allowance and personal guarantee, and to recommend the entity type that fits your state and plans.
- Independent market analysis before you choose a location. The broker and lender are paid when a deal happens. Dentagraphics holds no stake in any location, so a demographer can compare your candidate sites and tell you plainly whether the market fits your practice. Ask any source of market data where its competitor count came from and whether a person checked it.
How Dentagraphics helps you start a practice in St. Louis
- Free plan: national, state and county overviews of demographics and competition, including every Illinois and Missouri county on this page.
- Start/Buy membership ($149/month): unlimited address and area searches, so you can check the population, income and verified nearby practices around every site you are considering.
- Custom reports with handwritten analysis by a demographer: a Dentagraphics demographer studies your market and writes the analysis for your practice strategy, market and target patients. It is human analysis, not generated by software or AI. Choose a Single-Site Study ($695) to examine one address, or an Area Analysis ($745) to compare areas across the metro.
- Practice Mailers, if you would rather buy: find practices by specialty, owner experience and the market around them, then send handwritten letters to owners who might sell. We print, stamp and mail each one on your behalf.
For 12 years, more than 10,000 paid customers have used Dentagraphics to judge an address, a neighborhood or a region before committing to it.
Keep reading:
- St. Louis area dental demographics
- Sample Single-Site Study and sample Area Analysis
- Dental practice site selection: how to choose a location
- How to buy a dental practice
- How Dr. Phil Chung chose the location for his pediatric dental practice
- Plans and pricing
Frequently asked questions
How many dentists are in St. Louis? Dentagraphics counts practices rather than individual dentists. The St. Louis area has 631 general dental practices and 255 specialty practices, from a list verified by hand. The largest county, St. Louis County, has 293 general practices.
Is St. Louis saturated with dentists? By the metro average, it has fewer practices per resident than the country as a whole: 4,458 residents per general practice, against a US average of 3,853. The counties vary widely, from 3,395 residents per general practice in St. Louis County to 15,482 in St. Louis City. Saturation around a specific site depends on the offices within a short drive, so check the drive-time area around each address you are considering.
Which St. Louis area county has the most residents per dental practice? St. Louis City, with 15,482 residents per general practice and 18 general practices (among counties with at least one practice). St. Louis County has the fewest, at 3,395.
What is the median household income in the St. Louis area? $75,161 for the metro, against a US median of $81,604. By county it ranges from $56,171 in St. Louis City to $102,378 in Monroe County, IL.
Where are dentists looking to open in St. Louis? On Dentagraphics, dentist research over the past 12 months is highest in St. Louis ZIPs 63131, 63122 (Kirkwood), 63141 (Creve Coeur) and 63146 (Maryland Heights), Washington, Chesterfield, Godfrey and Maryland Heights. Those areas already have 1,455 to 2,993 residents per general practice within 5 miles, fewer than the metro's typical 4,570, so they are crowded. Troy and Eureka draw the same high attention and still have 7,730 and 5,866 residents per general practice.
Where do I start if I want to open a dental practice in St. Louis? Decide your practice model, compare the counties on this page by residents per practice, income and growth, then test specific sites by drive time and verify the nearby competition before you sign a lease. A custom report written by a demographer can do that comparison for you.