Lesson 2: Demographics and Site Selection

Most startup dentists choose a location the wrong way around. They see a space, like it, then look for data supporting the decision they already made. The order that works is the reverse: define what you are looking for, measure several candidate areas the same way, and let the real estate follow.

This lesson is the doing side of site selection. Our site selection chapter explains what each variable means and includes a weighted scorecard. Here you get the procedure: which tables to pull, what to say when you call a competitor, and what to write down standing in the parking lot.

Step 1: write the practice model on one page

Demographic data cannot tell you whether an area is good. It can only tell you whether an area matches a model. So write the model first, in about ten lines.

Two of these do more work than the rest. Payment model sets how income-sensitive you are: an out-of-network or membership practice needs households with discretionary income and a reason to choose you, while a PPO practice mostly needs people with employer coverage. Hours decide whose population you count: a practice open evenings in an office district serves the people who work there, not the people who live there.

Step 2: draw the trade area

A trade area is the geography your patients realistically come from. Draw it before measuring anything, because every number you pull depends on the boundary you chose.

In practice you use two at once. Draw drive-time rings to think about patient behavior, then pick the ZIP Code Tabulation Areas or census tracts that mostly fall inside the ten minute ring, because that is how the data is published. Write down which ones you chose and use the same approach for every candidate.

Barriers you must draw by hand

Software draws smooth rings. Real trade areas have edges: a river with one bridge, an interstate with few crossings, a rail line, a state line that changes insurance networks, a school district boundary. Drive the area and mark the edges on your map. A practice one block on the wrong side of a barrier loses much of the population the software credited to it.

Step 3: pull the numbers, for free

You do not need a paid demographics report. Work through this sequence for each candidate area and put the results in one spreadsheet with a column per site.

1. Population and households. At data.census.gov, search your tract or ZIP Code Tabulation Area and pull total population and total households from the most recent American Community Survey 5-year estimates. Note the survey vintage.
2. Age distribution. Translate the age breakdown into the categories your model cares about: under 18 if you want families, 35 to 64 if restorative volume matters, 65 and over if you expect removable and implant work.
3. Household income. Pull the income distribution, not just the median. Two areas with the same median look very different if one has a wide spread.
4. Housing tenure and mobility. Owner-occupied share and years in residence tell you whether people stay long enough to become recall patients.
5. Health insurance coverage. The ACS reports health insurance coverage, an imperfect proxy for dental coverage but useful, especially for the uninsured share.
6. Daytime population. If you plan to serve workers, use OnTheMap to compare who works in the area against who lives in it.
7. Growth. Compare the current estimate against the same geography five years earlier, and check the planning department for approved residential developments. Approved permits beat a past trend line as a forward indicator.
8. Dental establishment counts. Census Business Builder and County Business Patterns report establishments under NAICS 621210, Offices of Dentists. A lagging cross-check, not the final count.
9. Shortage area status. Check the address at the HRSA shortage area tools. Dental HPSA status can matter for certain loan repayment programs and signals supply.
10. State benchmark. Pull your state's population and dentist count so the trade area is compared against something. ADA Health Policy Institute workforce data publishes state figures.

Budget three to four hours for the first area and under an hour for each additional one, since you reuse the same tables.

Step 4: count the competition honestly

Establishment counts from federal data lag and miss things. Build your own list.

1. Map search. Search a mapping service for dentists in your trade area and list every office: name, address, apparent size, and whether it looks solo, group, or DSO-affiliated.
2. State board license lookup. Most boards publish a license search that includes practice addresses. Use it to count dentists per address. Three dentists at one address is very different from three solo offices.
3. Website review. Note services, hours, evening or Saturday availability, listed insurance plans, and whether they appear to accept new patients.
4. Review profiles. Read recent reviews of the three closest competitors, looking for repeated complaints. Those describe the unmet need: cannot get in, long waits, rushed visits, billing surprises, no evening hours.
5. Drive by. Look at the parking lots at 10am Tuesday and 4pm Wednesday. Full lots mean busy offices, which is usually good news for you.

The availability call, done honestly

Call the three or four closest competitors as what you actually are: a person asking whether they are taking new patients. Do not claim to be in pain, do not book an appointment you will not keep, and do not waste a clinical slot.

As prose: "Hi, I am looking into moving to the area and trying to find a dentist. Are you taking new patients right now, and how far out are you booking for a cleaning?" That is the whole call. If they offer, ask about network status with a common plan and about evening or Saturday hours.

Record three things: whether they accept new patients, how many weeks out the first hygiene appointment is, and how the call was handled. A trade area where every office books six to ten weeks out has demand that supply is not meeting, which is the most encouraging signal a startup can find. A trade area where three offices can see you Thursday is telling you something too.

Step 5: the supply and demand math

Now turn counts into a capacity estimate. This is arithmetic, not prophecy, and every number in it is an assumption you should write down.

Hypothetical example. A candidate trade area has 24,000 residents inside the ten minute drive time, and your competitor list finds 11 full-time-equivalent dentists there. That is roughly 2,180 residents per dentist. If the state figure you pulled works out to about 1,700, the candidate area is thinner on supply than the state overall, which is favorable.

Then ask how many of those residents are realistically available, since not everyone seeks care. A startup needs a few hundred new patients in its first year, which in a trade area this size is a fraction of one percent of the population. Write your own capture assumption down and treat it as the thing you will test, not the thing you know.

Step 6: see the site at the right times

Data gets you to a short list; your own eyes decide. Visit each finalist three times: a weekday morning, a weekday at 5pm, and a Saturday midday. Take this log with you.

Bring your architect or a dental-specific contractor to walk the two finalists before you sign anything. A test fit and preliminary budget cost a fraction of what a bad space costs, and they surface the deal breakers: insufficient electrical service, no route for plumbing, ceiling height, or a landlord who will not permit trenching. The buildout chapter covers what the test fit should examine.

Step 7: score, decide, and write down why

Score finalists on the same weighted criteria rather than arguing about them. The site selection chapter has a scorecard you can adapt, weighted to your model from Step 1. Then write a short memo: which site, why, what the scorecard said, and the biggest risk. Lenders expect market support for a startup, and a memo built on data you pulled yourself is more persuasive than a purchased report you cannot explain.

A two-week research plan

Red flags that should stop the search

• Zoning that does not permit dental use by right. Get the answer in writing from the municipality, not from the listing agent.
• A landlord who will not allow slab trenching, or will not put the allowance and the build schedule in the lease.
• Parking already tight before you add patients, staff, and deliveries, or no quiet place for a compressor and vacuum.
• Population decline plus an aging competitor base with no succession. The retiring dentists may be leaving because the area is shrinking.
• A plan that only works at a high capture rate. If it requires several percent of the trade area population, the plan is wrong.

What to carry into the next lesson

You should now have a chosen submarket, a short list of spaces, a defensible market memo, and a rough square footage from a test fit. All of it feeds the budget. Next, Lesson 3 covers financing and the startup budget. Read alongside this lesson: the site selection chapter for the full variable list and scorecard, lease versus buy, and dental office lease terms that matter before you sign a letter of intent.

Try it

1. Write the model page. Fill in all seven rows of the practice model table. Force yourself to answer the payment model question, because everything downstream depends on it.
2. Build the comparison spreadsheet. Pick two candidate areas and pull the same ten data points for each from the sources listed. Put them side by side. If one area cannot be measured the same way as the other, fix the geography rather than accepting the mismatch.
3. Make five availability calls. Call the five nearest offices to your leading candidate address and record acceptance of new patients and weeks out for hygiene. Average the weeks-out figure. Be honest about who you are and keep each call short.
4. Drive the edges. Drive to the boundary of your ten minute ring in four directions and mark every barrier you cross: highways, rivers, rail, or a line that changes how people identify with the area.
5. Complete one observation log. Visit your leading site at 5pm on a weekday. Pay particular attention to the left turn question and the parking question, the two that patients notice and dentists forget.
6. Draft the market memo. One page: trade area, data, competitor picture, recommendation, biggest risk. Ask a dental-specific CPA or a lender what is missing.

Check yourself

1. Why must the trade area be defined before you pull any data?

Every demographic number depends on the boundary it was measured inside. If you use different boundary methods or different data years for different sites, the differences you find come from your method rather than from the market, and the comparison is worthless.

2. What does a long wait for a new patient hygiene appointment at nearby offices tell you?

That existing supply is not meeting demand. If every office near your candidate site is booking six to ten weeks out, there are patients in the area who cannot get seen when they want to be seen, which is the most direct evidence a startup can gather that there is room for another practice.

3. Why is a low residents-per-dentist count sometimes a bad sign rather than a good one?

Because areas are underserved for reasons. Population loss, a closed major employer, a payer mix that cannot support private practice economics, or a large clinic that already absorbs the need all produce few dentists and few opportunities. Always find out why before treating low competition as an opening.

4. Which two site observations do dentists most often overlook?

Whether patients have to make a left turn across traffic to reach the entrance, and whether peak parking actually supports a practice with patients, staff, and deliveries. Both affect daily patient experience far more than the interior finishes that get most of the attention during a tour.

5. What should you do before signing a letter of intent on a space?

Get a test fit and preliminary budget from a dental-specific architect or contractor, and confirm in writing with the municipality that dental use is permitted. Both cost far less than discovering after signing that the space cannot hold your operatory count, that the electrical service is inadequate, or that the use requires a hearing.

This guide is educational content and does not constitute legal, financial, tax, or clinical advice. Laws and regulations vary by state and change over time. Consult your own dental-specific attorney, CPA, and state dental board before acting.