Groundwork

Health care · County · New York

Dentists and orthodontists in Suffolk County, NY

How Suffolk County, NY compares with other counties and the U.S. for dentists and orthodontists: competitors, household spending, official counts and growth.

Groundwork market score · out of 100

Score 40 out of 100: Lower middle

Ranked #1,285 of 1,886 scored counties
#45 of 58 scored counties in New York

Listings
777
89 chain locations (11%)
Official establishments
662
−7.8% since 2019
Household spending a year
$754.8M
On medical and dental services · $1,527 a household
Spending per listing
$971K
In line with the U.S.
Listings per 10k households
15.7
20% above the U.S.
Population, 2025
1,546,090
+1.6% since 2020

See the dentists and orthodontists around any address in Suffolk County

The site report maps the dentists and orthodontists 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 Suffolk County. Signed out, you see a blurred preview; on an account, each report is one action.

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Survey estimates 2020–2024 · population estimates 2025 · official business counts 2023 · map listings September 2026 · Data credits · How we measure

What this means

As of September 2026, map listings count 777 dentists and orthodontists in Suffolk County. 89 of them (11%) are chain locations, against 12% across the U.S. Per 10,000 households, that is 15.7, 20% above the U.S. rate of 13.1.

At $1,527 per household (19% above the U.S. average), households in Suffolk County spend about $754.8M a year on medical and dental services. That works out to $971K per practice, in line with the U.S. figure of $984K. That spending covers all medical and dental services, which dentists and orthodontists share with other businesses in the trade.

Official counts show 662 businesses with payroll classed as offices of dentists in Suffolk County in 2023, down 7.8% from 2019. That is one for every 747 households, against one for every 952 across the U.S. Since fiscal 2022, 23 SBA-backed loans worth $11M have gone to businesses classed as offices of dentists in Suffolk County.

Between 2020 and 2025, the population of Suffolk County grew 1.6%, slower than the U.S. (+3.1%). Suffolk County scores 40 (lower middle) on the Groundwork market score for dentists and orthodontists, ranking #1,285 of 1,886 scored counties and #45 of 58 scored counties in New York.

How Suffolk County compares

The same measures for New York and the whole U.S. Spending per listing divides a year of household spending on all medical and dental services by the dentists and orthodontists counted, so it measures the demand for each competitor, not any business’s revenue. Households per establishment does the same with the official count.

Dentists and orthodontists in Suffolk County, NY compared with New York and the U.S.
MeasureSuffolk CountyNew YorkU.S.
Listings per 10k households15.712.813.1
Spending per listing$971K$995K$984K
Households per official establishment747963952
Official establishment growth, 2019–2023−7.8%−7.7%−0.5%
Population growth, 2020–2025+1.6%−0.6%+3.1%
Spending per household on medical and dental services$1,527$1,278$1,288
Median household income$130,686$85,974$80,734
Groundwork market score4035

Official counts and lending

Businesses

Official establishments, 2019 to 2023
718 → 662−7.8% over the period
Employees, 2023
4,844
Annual payroll, 2023
$281.3M
One-person businesses, 2023
Not publishedNot published for this business type
Map listings, September 2026
77789 chain locations
Listings at the U.S. rate for this spending
767The U.S. ratio of listings to household spending, applied here

SBA-backed loans since fiscal 2022

Loans
23
Amount
$11M

SBA-backed loans to businesses classed as offices of dentists in Suffolk 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 Suffolk County

Population, 2025 estimate
1,546,090+1.6% since 2020
Households
494,405
Median age
42.5
Homes lived in by their owners
82%
Vehicles per household
2.0
Land area
898 sq. mi.
People per square mile
1,620
Median household income
$130,686+29.4% vs. 2015–2019, before inflation
Average household income
$167,491
Median home value
$578,400
Jobs located here
624,016
Daytime population
1,340,805Residents who don’t work, plus everyone whose job is here

Looking at a specific site in Suffolk 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 dentists and orthodontists on map listings by name and distance.

Or open the report at the center of Suffolk County. Signed out, you see a blurred preview; on an account, each report is one action.

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Dentists and orthodontists across New York

Every New York market ranked →

The highest-scoring counties in New York for dentists and orthodontists, numbered among those based in New York, with Suffolk County marked.

Top counties in New York

Counties in New York ranked for dentists and orthodontists by Groundwork market score
MarketScoreListingsPer 10k householdsSpending per listingPopulation growthU.S. rank
1Sullivan County, NY74196.0$1.9M+2.7%#175 of 1,886
2Delaware County, NY7363.1$3.5M+0.2%#187 of 1,886
3Schoharie County, NY7375.4$2.1M+1.4%#195 of 1,886
4Allegany County, NY7274.0$2.6M+0.9%#209 of 1,886
5Washington County, NY6983.3$3.4M−2.9%#275 of 1,886
6Herkimer County, NY67103.9$2.8M−1.4%#325 of 1,886
7Tioga County, NY67125.9$1.9M−1.9%#333 of 1,886
8Genesee County, NY67156.0$1.9M+0.2%#335 of 1,886
9Greene County, NY66137.0$1.7M−1.1%#378 of 1,886
10Orleans County, NY6595.5$1.9M−0.5%#400 of 1,886
45Suffolk County, NY4077715.7$971K+1.6%#1,285 of 1,886

Other business types in Suffolk County

Each with its Groundwork market score here, out of 100, where it has one.

Questions

How many dentists and orthodontists are in Suffolk County, NY?

Suffolk County has 777 dentists and orthodontists on map listings as of September 2026. 89 of them (11%) are chain locations. The listings count dental practices, orthodontists included. Official counts show 662 businesses with payroll classed as offices of dentists in 2023, down 7.8% from 2019.

How much do households in Suffolk County, NY spend on medical and dental services?

About $754.8M a year, or $1,527 per household. That is 19% above the U.S. average (an index of 119, where 100 is the U.S. average). Spread across the 777 dentists and orthodontists on map listings, it comes to $971K per practice. The spending figure covers all medical and dental services, not only dentists and orthodontists. It is estimated from the incomes of the 494,405 households in Suffolk County and national spending patterns by income.

How does Suffolk County, NY compare with the U.S. for dentists and orthodontists?

Suffolk County has 15.7 dentists and orthodontists per 10,000 households, 20% above the U.S. rate of 13.1. Spending per practice is $971K, in line with the U.S. figure of $984K. At the national ratio of dentists and orthodontists to household spending, Suffolk County would have about 767, against 777 on map listings. There is one business with payroll in the industry for every 747 households, against one for every 952 across the U.S. The official count fell 7.8% from 2019 to 2023, against −0.5% for the U.S.

How fast is Suffolk County, NY growing?

Population estimates put Suffolk County at 1,546,090 people in 2025, up 1.6% since 2020, slower than the U.S. (+3.1%). It has 494,405 households. The median household income in Suffolk County is $130,686 a year, 62% above the U.S. median of $80,734. That rose 29.4% 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. Suffolk County scores 40 for dentists and orthodontists (lower middle), #1,285 of 1,886 scored counties.

How can I see the market around a specific site?

Run a Groundwork site report on an address in Suffolk County. It maps the dentists and orthodontists 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 dentists and orthodontists · All 56 business types in Suffolk County

Screening a site or an acquisition in Suffolk 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 Suffolk 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.