Starting a dental practice in Seattle, WA: demographics, competition and where to look

If you're deciding where to open a dental practice in Seattle, start from how crowded the market already is: the metro has 2,802 residents per general practice, against a US average of 3,853. Bellevue, Kirkland, Redmond, Kenmore, Seattle ZIP 98116 and Tacoma ZIP 98407 draw high research activity from dentists on Dentagraphics and have about 1,900 to 2,200 residents per general practice within 5 miles, fewer than the metro's typical 2,803. Graham, Buckley and Bonney Lake in Pierce County draw the same high attention and still have about 3,900 to 6,400. Spanaway, with 8,158 residents per general practice, and Seattle ZIP 98136, with 5,440, pair room with median household incomes above $93,000, and few dentists are researching them.

This page puts the verified numbers for the Seattle-Tacoma-Bellevue metro area and each of its three counties in one place, then walks through how to narrow from a county to a specific site. The Seattle-Tacoma-Bellevue area, as Dentagraphics defines it, covers King, Pierce and Snohomish 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 Seattle metro at a glance

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

Across the whole metro there are 2,802 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: 7,319 residents per specialty practice, against a US average of 6,482. A metro average hides a lot, so the county numbers below matter more.

Seattle area dental competition, county by county

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: King (2,569), Snohomish (3,017). By this measure these counties are the more saturated part of the metro.
• Fewer practices per resident than the US average: Pierce (3,985). By this measure it is less saturated.
• Growth: Snohomish County shows the highest growth figure in the metro (4.6%). 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 Seattle 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 2,803 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.

All six have median household incomes above $100,000, 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.

Graham, Buckley and Bonney Lake, all in Pierce County, have the most room in this group. 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.

Much of the quiet room here is in higher-income areas: Spanaway ($93,057), Seattle ZIP 98136 ($138,837), Lake Stevens ($113,354) and Mukilteo ($119,048) all draw little research. Tacoma ZIPs 98433, 98444 (Parkland) and 98404 have median household incomes between $52,709 and $69,726, well below the metro's $98,808. They are lower-income underserved areas, and they tend to suit Medicaid or community-focused practice models better than fee-for-service.

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 the highest-income areas. Bellevue, Kirkland, Redmond, Kenmore, Seattle ZIP 98116 and Tacoma ZIP 98407 draw high research activity and have 1,919 to 2,231 residents per general practice, against the metro's typical 2,803.
• Pierce County has the busy markets that are still open. Graham (6,434 residents per general practice), Buckley (4,707) and Bonney Lake (3,867) draw high research activity and still have more room than the metro typically does.
• Some quiet room comes with high incomes. Spanaway and Seattle ZIP 98136 pair room with incomes above $93,000 and low research activity. The Tacoma ZIPs on the list are lower-income.

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 Seattle

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 Seattle

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

• Seattle 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 Seattle? Dentagraphics counts practices rather than individual dentists. The Seattle-Tacoma-Bellevue area has 1,434 general dental practices and 549 specialty practices, from a list verified by hand. The largest county, King, has 910 general practices.

Is Seattle saturated with dentists? By the metro average, it has more practices per resident than the country as a whole: 2,802 residents per general practice, against a US average of 3,853. The counties vary widely, from 2,569 residents per general practice in King County to 3,985 in Pierce 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 Seattle area county has the most residents per dental practice? Pierce County, with 3,985 residents per general practice and 237 general practices. King County has the fewest, at 2,569.

What is the median household income in the Seattle area? $98,808 for the metro, against a US median of $81,604. By county it ranges from $90,808 in Pierce County to $112,932 in King County.

Where are dentists looking to open in Seattle? On Dentagraphics, dentist research over the past 12 months is highest in Bellevue, Tacoma ZIP 98407, Seattle ZIP 98116, Kirkland, Kenmore and Redmond. Those areas already have 1,919 to 2,231 residents per general practice within 5 miles, fewer than the metro's typical 2,803, so they are crowded. Graham, Buckley, Bonney Lake, Arlington, Sammamish, Snoqualmie and Renton draw the same high attention and still have 3,308 to 6,434 residents per general practice.

Where do I start if I want to open a dental practice in Seattle? 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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