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Starting a Dental Practice in the San Francisco Bay Area, CA: Demographics, Competition and Where to Look

Last updated: 10/2/2026

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Starting a dental practice in the San Francisco Bay Area, CA: demographics, competition and where to look

If you're deciding where to open a dental practice in the San Francisco Bay Area, the suburbs dentists research most are already crowded. Alamo, Danville, Newark, Fremont and Walnut Creek draw high research activity from dentists on Dentagraphics and have about 1,400 to 1,800 residents per general practice within 5 miles, fewer than the metro's typical 2,406. Union City and San Carlos draw the same high attention with somewhat more room, 3,261 and 2,794 residents per general practice. Oakland ZIP 94619 pairs 9,591 residents per general practice with a median household income of $118,126, close to the metro's $118,945, and few dentists are researching it.

This page puts the verified numbers for the San Francisco-Oakland-Berkeley metro area and each of its five counties in one place, then walks through how to narrow from a county to a specific site. The San Francisco-Oakland-Berkeley area, as Dentagraphics defines it, covers Alameda, Contra Costa, Marin, San Francisco and San Mateo counties.

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 San Francisco metro at a glance

MeasureSan Francisco-Oakland-Berkeley areaUS comparison
Residents4,609,803
Population growth-2.9%
General dental practices1,888
Residents per general practice2,442US average 3,853
Specialty dental practices602
Residents per specialty practice7,657US average 6,482
Median age39.0US median 38.5
Median household income$118,945US median $81,604
Below the poverty line7.9%US rate 11.6%
Medicaid enrollees621,532
Speaks English at home58.7%US average 78.1%
Speaks Spanish at home15.6%US average 13.2%
Owner occupied homes971,312
Renter occupied homes801,300
High school graduate or higher90%US rate 90%
Bachelor's degree or higher51%US rate 36%

Source: Dentagraphics, verified practice counts; Census ACS. See the full San Francisco area dental demographics page.

Across the whole metro there are 2,442 residents per general dental practice, below the US average of 3,853, so the area has more general practices per resident than the country as a whole. Specialty practices are thinner: 7,657 residents per specialty practice, against a US average of 6,482. A metro average hides a lot, so the county numbers below matter more.

San Francisco area dental competition, county by county

CountyResidentsPopulation growthGeneral practicesResidents per general practiceMedian household income
Alameda1,642,223-2.4%6392,570$115,720
Contra Costa1,172,5460.6%4462,629$115,166
San Francisco825,420-5.5%3672,249$127,991
San Mateo740,170-3.2%3332,223$140,527
Marin256,258-2.3%1032,488$137,997

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: San Mateo (2,223), San Francisco (2,249), Marin (2,488), Alameda (2,570), Contra Costa (2,629). By this measure every county in the metro has more practices per resident than the country as a whole.
  • Growth: Contra Costa County shows the highest growth figure in the metro (0.6%). 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 San Francisco area town by town, and ZIP code by ZIP code inside the largest 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 2,406 residents per general practice. Higher means more residents for each office.

Popular and already crowded

These areas draw high research activity from dentists, and they already have more offices per resident than the metro typically does.

AreaCountyResidents per general practice (5 mi)Median household incomeDentist research activity
AlamoContra Costa1,368$230,926High
DanvilleContra Costa1,549$200,603High
NewarkAlameda1,652$146,584High
FremontAlameda1,695$155,096High
Walnut CreekContra Costa1,806$136,042High
MillbraeSan Mateo1,823$135,591High
DublinAlameda1,833$170,207High
LafayetteContra Costa1,871$192,817High

All eight have median household incomes above the metro's $118,945. A new practice here has to win patients away from established ones.

Popular and still open

These areas draw the same high research activity but still have more residents per office than the metro typically does.

AreaCountyResidents per general practice (5 mi)Median household incomeDentist research activity
Union CityAlameda3,261$126,135High
San CarlosSan Mateo2,794$198,106High

Both have incomes above $125,000. Their margin over the metro's typical 2,406 is modest, so treat them as less crowded rather than open. When many dentists are researching the same market, the window can close quickly.

Room to grow, little attention

These areas have more residents per office than the metro typically does, and comparatively few dentists are researching them.

AreaCountyResidents per general practice (5 mi)Median household incomeDentist research activity
Oakland, ZIP 94619Alameda9,591$118,126Low
Oakland, ZIP 94603Alameda5,270$61,365Low
RichmondContra Costa4,723$76,742Low
Oakland, ZIP 94601Alameda4,611$60,285Low
Oakland, ZIP 94605Alameda4,213$95,156Low
Oakland, ZIP 94621Alameda4,173$53,048Low
El CerritoContra Costa4,080$113,852Low
Oakland, ZIP 94602Alameda3,785$117,642Low
Oakland, ZIP 94606Alameda3,725$71,080Low

Seven of these nine areas are Oakland ZIPs. Oakland ZIPs 94603, 94601, 94621 and 94606 and Richmond have median household incomes under $77,000, well below the metro's $118,945. They are lower-income, underserved areas that tend to suit Medicaid or community-focused practice models better than fee-for-service. Oakland ZIPs 94619 and 94602 and El Cerrito have incomes above $110,000.

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

  • Research and crowding overlap. The eight crowded areas dentists research most all have fewer residents per general practice than the metro's typical 2,406, as low as 1,368 in Alamo.
  • Little busy room is left. Only Union City and San Carlos combine high research activity with more residents per office than the metro typically has, and only modestly.
  • Oakland holds most of the quiet room. Seven of the nine low-attention areas with the most residents per office are Oakland ZIPs. ZIP 94619 has the most, at 9,591 residents per general practice.

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

  1. 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.
  2. Compare counties. Use the tables above to shortlist counties where residents per practice, income and growth fit your model.
  3. 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.
  4. 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.
  5. 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.
  6. 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 the San Francisco Bay Area

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 the San Francisco Bay Area

  • Free plan: national, state and county overviews of demographics and competition, including every California 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:

Frequently asked questions

How many dentists are in the San Francisco Bay Area? Dentagraphics counts practices rather than individual dentists. The San Francisco-Oakland-Berkeley area has 1,888 general dental practices and 602 specialty practices, from a list verified by hand. The largest county, Alameda County, has 639 general practices.

Is the San Francisco Bay Area saturated with dentists? By the metro average, the area has more general practices per resident than the country as a whole: 2,442 residents per general practice, against a US average of 3,853. The counties range from 2,223 residents per general practice in San Mateo County to 2,629 in Contra Costa County. 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 San Francisco area county has the most residents per dental practice? Contra Costa County, with 2,629 residents per general practice and 446 general practices. San Mateo County has the fewest, at 2,223.

What is the median household income in the San Francisco area? $118,945 for the metro, against a US median of $81,604. By county it ranges from $115,166 in Contra Costa County to $140,527 in San Mateo County.

Where are dentists looking to open in the San Francisco Bay Area? On Dentagraphics, dentist research over the past 12 months is high in Alamo, Danville, Newark, Fremont, Walnut Creek, Millbrae, Dublin and Lafayette. Those areas already have 1,368 to 1,871 residents per general practice within 5 miles, fewer than the metro's typical 2,406, so they are crowded. Union City and San Carlos draw the same high attention and have somewhat more room, 3,261 and 2,794 residents per general practice.

Where do I start if I want to open a dental practice in the San Francisco Bay Area? 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.

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