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Suffolk County, NY — Dentists Saturation

How many dentists exist per person present — residents plus daytime workers — by ZIP code, compared with the U.S. average. Establishment data: Census ZBP 2023. Population: ACS 2024 5-year. 110 ZIP codes analyzed.

Includes: General & family dentists · Orthodontists · Oral surgeons · Other dental specialists. Counted together because official statistics use one 621210 code.

Measured density: Above average — 1.06× the U.S. rate (between 1.06× and 1.23× once withheld ZIP cells are counted)

Why a range: Census does not publish a ZIP-by-industry count when that ZIP has 0–2 businesses. 53 ZIP cells in this county are withheld, 49 of them with residents. Each could hold 0, 1, or 2 businesses: counting them all as 0 gives the low end, counting them all as 2 gives the high end — the data cannot say where the truth sits. The density range uses only the populated cells, since ZIPs without residents are excluded from per-person rates. How ranges work

Range spans the U.S. rate   Suffolk County dentists — 106–123% of the U.S. rate

622 dentists are counted in Suffolk County — 3.6 per 10,000 people present (residents + daytime workers), 106% of the U.S. rate of 3.4.

On the comparable ZIP set (ZIPs with a published count in every year), the total has fallen 16% between 2015 and 2023 (716 → 604). That set is smaller than today's county total. 2020–2021 were pandemic-distorted, and Census rounds counts, so small moves are within noise.

Measured supply density is highest in 11743 (Huntington), 11725 (Commack), 11952 (Mattituck) — well above the national rate. On measured density alone, the lowest-density residential ZIPs with a published count are 11722 (Central Islip), 11726 (Copiague), 11754 (Kings Park).

BLS QCEW puts the latest county-wide count (2026 Q1) at 645 establishments, the freshest available signal.

Measured density: Suffolk County sits at 106% of the U.S. rate for dentists. 49 ZIPs with population have no published count (each 0–2 businesses), so the true per-capita rate is between 106% and 123% of the U.S. rate. Why. The highest measured density is in 11743 and 11725; the lowest measured density is in 11722 and 11726.

This is a supply-side read: it counts existing dentists and the people present, not foot traffic, income, rent, or whether locals want more. Treat low density as a question to check, not an answer.

Dentists
622–728
published count; upper bound counts each withheld ZIP cell as 2 (53 cells) (2023)
Per 10,000 present
3.6
residents + daytime workers
U.S. average
3.4
per 10,000 present
County index
1.06×
vs. U.S.
Latest quarter (QCEW)
645
2026 Q1 — county total
Residents
1,444,016
105 ZIPs with data
Workers
549,149
jobs located in county

Is the area growing?

Population
1,535,909
Census PEP, July 1 2024
Change since 2020
+0.9%
+13,734 people
Net migration 2024
+3,412
international +9,881, domestic −6,469
Jobs located here
639,110
LODES 2022, −3.7% since 2019

Suffolk County had an estimated 1,535,909 residents on July 1, 2024 — 0.9% more than in 2020 (+13,734). In the latest year it gained 6,880 people: births minus deaths +3,394, international migration +9,881, domestic migration −6,469. Components are published separately and may not sum exactly.

639,110 jobs were located in the county in 2022 (−3.7% since 2019), and 768,254 employed residents lived there (+0.1% since 2019). LODES counts wage and salary jobs covered by unemployment insurance plus federal jobs; it excludes the self-employed and military, and counts jobs rather than unique people. 2019→2022 spans the pandemic, so read it as one change, not a trend.

Population and migration say whether the customer base is growing. They do not say whether people want another business of this type. Definitions and limits →  ·  Full county detail →

ZIP gaining residents
2015–19 → 2020–24
Change
11978 Westhampton Beach
+52.5%
11968 Southampton
+45.6%
11937 East Hampton
+35.6%
ZIP losing residents
2015–19 → 2020–24
Change
11955 Moriches
−34.4%

ACS 5-year estimates for 2015–2019 and 2020–2024. Only ZIPs with at least 2,000 residents in both windows and a change larger than the survey margin of error (90%) are listed — small ZIPs move a lot on paper without a real signal.

Nonemployer businesses (no paid employees)

Nonemployer businesses
428
no paid employees (2024)
Receipts
$35.3M
published gross receipts
Receipts per business
$82K
gross, not profit

Census Nonemployer Statistics counts businesses with no paid employees — a separate universe from the employer establishments counted above; a business is in one or the other, never both. They are not storefronts by definition: many are home-based, mobile, or part-time.

We show them beside the density index, not inside it. In categories such as nail and beauty salons, child care, and pet care, one-person businesses can outnumber employer establishments, so the employer-only count understates how many businesses exist. That is not evidence of higher demand.

Receipts are gross revenue reported for these businesses — not profit, and not the size of the local market. Census publishes this only at county level, so it is not shown on the ZIP map. See methodology.

Saturation map

Each ZIP area is shaded by its density of this business type per person present (residents + workers) vs. the U.S. average. Click any ZIP to zoom to its boundary, see its numbers, and switch to aerial imagery. Individual mapped shops appear as dots at street level — Show locations zooms you in to them (scroll or double-click to zoom).

Basemap:
Under 50% 50–100% 100–150% 150–250% 250%+ 0–2 (not published) / no data ZIP total (dot size) Mapped shop (OpenStreetMap, street level)

Map data © OpenStreetMap contributors, tiles by OpenFreeMap.

White dots are ZIP totals from the official Census count — the bigger the dot, the more dentists in that ZIP. They are aggregated, not individual shops. Turquoise dots are individual locations mapped in OpenStreetMap, shown only at street level; they are crowd-sourced and indicative, may be incomplete, and do not equal the official counts. Only the official ZIP totals feed the saturation index.

Market trend — down 16% since 2015

Number of dentists in Suffolk County across 2015–2023, on a consistent set of ZIP codes present in every year — so changes are real, not ZIP-boundary artifacts. 2015/2018 are pre-pandemic baselines; 2020/2021 are COVID-distorted.

716
2015
667
2018
635
2020
614
2021
602
2022
604
2023

Highest measured density

ZIP
vs. U.S. average
Index
11743 Huntington
318%
11725 Commack
315%
11952 Mattituck
307%
11787 Smithtown
295%
11792 Wading River
271%
11790 Stony Brook
263%
11733 East Setauket
232%
11776 Port Jefferson Station
229%
11786 Shoreham
217%
11968 Southampton
216%
11934 Center Moriches
194%
11751 Islip
193%
11730 East Islip
169%
11702 Babylon
167%
11780 Saint James
162%

Lowest measured density

ZIP
vs. U.S. average
Index
11722 Central Islip
28%
11726 Copiague
38%
11754 Kings Park
46%
11779 Ronkonkoma
49%
11727 Coram
49%
11704 West Babylon
57%
11967 Shirley
58%
11778 Rocky Point
65%
11720 Centereach
65%
11701 Amityville
66%
11716 Bohemia
67%
11741 Holbrook
69%
11706 Bay Shore
73%
11769 Oakdale
79%
11757 Lindenhurst
80%
Low measured density is not evidence of opportunity. A ZIP with few dentists may simply lack foot traffic, retail space, or demand. We rank only residential and mixed ZIPs here; employment hubs and visitor destinations are listed separately below. ZIPs where Census did not publish a count (0–2 businesses) are not ranked: they may be the least served of all, but the data cannot tell 0 from 1 or 2. Verify those locally.

Employment hubs & destinations

These ZIPs have far more workers (or visitors) than residents, so their counts are driven by daytime and visitor demand — not a place to read "shortage" from resident numbers alone.

ZIPNeighborhoodType ResidentsWorkersDentistsIndex
11788Hauppauge Employment hub 17,37438,054 16 131%
11747Melville Employment hub 20,51351,326 19 123%
11749Islandia Employment hub 3,6008,492 0–2 —
11770Ocean Beach Employment hub 77181 0–2 —
11794Stony Brook Destination 83111,090 0–2 —
11931Aquebogue Destination 27525 0–2 —
11932Bridgehampton Employment hub 7252,345 0–2 —
11972Speonk Employment hub 334680 0–2 —
11973Upton Destination 482,693 0–2 —
06390Fishers Island Employment hub 72273 0–2 —

Scroll the table sideways to see all columns.

All ZIP codes

Click a column header to sort. Index = dentists per 10,000 people present (residents + 0.5×workers) ÷ the U.S. average. 100% = exactly average.

ZIPNeighborhood ResidentsWorkersDentists Per 10kIndexStatus
11975Wainscott 450639 3 39.0 1163% Very high density
11743Huntington 43,49018,099 56 10.7 318% Very high density
11725Commack 29,07317,597 40 10.6 315% Very high density
11952Mattituck 5,0401,566 6 10.3 307% Very high density
11787Smithtown 34,49918,002 43 9.9 295% Very high density
11792Wading River 8,9042,020 9 9.1 271% Very high density
11790Stony Brook 21,0745,569 21 8.8 263% Very high density
11976Water Mill 2,9521,097 3 8.6 256% Very high density
11733East Setauket 17,7525,672 16 7.8 232% High density
11776Port Jefferson Station 22,8086,568 20 7.7 229% High density
11786Shoreham 6,459830 5 7.3 217% High density
11968Southampton 15,3128,019 14 7.2 216% High density
11934Center Moriches 9,4182,746 7 6.5 194% High density
11751Islip 13,7263,416 10 6.5 193% High density
11730East Islip 14,2473,261 9 5.7 169% High density
11702Babylon 13,9094,377 9 5.6 167% High density
11780Saint James 15,0186,761 10 5.4 162% High density
11942East Quogue 5,4061,094 3 5.0 150% High density
11795West Islip 25,3798,141 13 4.4 132% Above average
11788Hauppauge 17,37438,054 16 4.4 131% Above average
11729Deer Park 27,23113,958 15 4.4 131% Above average
11764Miller Place 12,5512,473 6 4.4 130% Above average
11747Melville 20,51351,326 19 4.1 123% Above average
11777Port Jefferson 9,3967,308 5 3.8 114% Above average
11703North Babylon 17,1872,515 7 3.8 113% Above average
11742Holtsville 13,2025,410 6 3.8 113% Above average
11782Sayville 14,4053,998 6 3.7 109% Above average
11937East Hampton 21,8825,485 9 3.7 109% Above average
11772Patchogue 45,02315,885 19 3.6 107% Above average
11766Mount Sinai 10,7501,814 4 3.4 102% Above average
11755Lake Grove 12,1445,132 5 3.4 101% Above average
11746Huntington Station 65,74715,647 25 3.4 101% Above average
11946Hampton Bays 15,8193,886 6 3.4 101% Above average
11784Selden 26,2442,999 9 3.2 97% Below average
11949Manorville 14,5631,815 5 3.2 96% Below average
11763Medford 29,9738,428 11 3.2 96% Below average
11768Northport 22,0306,010 8 3.2 95% Below average
11767Nesconset 14,9642,970 5 3.0 91% Below average
11901Riverhead 33,09114,663 12 3.0 89% Below average
11953Middle Island 12,8462,563 4 2.8 84% Below average
11731East Northport 29,9996,541 9 2.7 81% Below average
11757Lindenhurst 44,4138,479 13 2.7 80% Below average
11769Oakdale 8,9354,747 3 2.7 79% Below average
11706Bay Shore 68,97624,961 20 2.5 73% Below average
11741Holbrook 26,6677,137 7 2.3 69% Below average
11716Bohemia 9,65916,191 4 2.3 67% Below average
11701Amityville 29,50913,816 8 2.2 66% Below average
11720Centereach 29,2925,738 7 2.2 65% Below average
11778Rocky Point 12,3902,895 3 2.2 65% Below average
11967Shirley 27,9755,900 6 1.9 58% Below average
11704West Babylon 40,70612,470 9 1.9 57% Below average
11727Coram 28,4953,558 5 1.7 49% Far below average
11779Ronkonkoma 38,20621,220 8 1.6 49% Far below average
11754Kings Park 17,5653,544 3 1.6 46% Far below average
11726Copiague 21,4554,146 3 1.3 38% Far below average
11722Central Islip 39,0335,933 4 1.0 28% Far below average
11705Bayport 8,2842,047 0–2 — — Not published
11707West Babylon —41 0–2 — — Not published
11713Bellport 9,2183,760 0–2 — — Not published
11715Blue Point 3,936931 0–2 — — Not published
11717Brentwood —12,065 11 — — Not published
11718Brightwaters 3,179647 0–2 — — Not published
11719Brookhaven 3,2351,836 0–2 — — Not published
11721Centerport 6,426735 0–2 — — Not published
11724Cold Spring Harbor 3,0731,375 0–2 — — Not published
11738Farmingville 18,8773,566 0–2 — — Not published
11739Great River 1,2251,418 0–2 — — Not published
11740Greenlawn 10,1272,406 0–2 — — Not published
11749Islandia 3,6008,492 0–2 — — Not published
11752Islip Terrace 9,2041,071 0–2 — — Not published
11770Ocean Beach 77181 0–2 — — Not published
11789Sound Beach 7,369213 0–2 — — Not published
11794Stony Brook 83111,090 0–2 — — Not published
11796West Sayville 3,560567 0–2 — — Not published
11798Wyandanch —2,060 0–2 — — Not published
11930Amagansett 842938 0–2 — — Not published
11931Aquebogue 27525 0–2 — — Not published
11932Bridgehampton 7252,345 0–2 — — Not published
11933Calverton 6,6933,294 0–2 — — Not published
11935Cutchogue 2,863796 0–2 — — Not published
11939East Marion 1,33164 0–2 — — Not published
11940East Moriches 5,8191,860 0–2 — — Not published
11941Eastport 2,814429 0–2 — — Not published
11944Greenport 5,0371,674 0–2 — — Not published
11947Jamesport 148230 0–2 — — Not published
11948Laurel 924177 0–2 — — Not published
11950Mastic 17,5991,037 0–2 — — Not published
11951Mastic Beach 15,938568 0–2 — — Not published
11954Montauk 4,2231,424 0–2 — — Not published
11955Moriches 2,458646 0–2 — — Not published
11956New Suffolk 29865 0–2 — — Not published
11957Orient 1,121177 0–2 — — Not published
11958Peconic 884384 0–2 — — Not published
11959Quogue 734666 0–2 — — Not published
11960Remsenburg 830101 0–2 — — Not published
11961Ridge 12,315843 0–2 — — Not published
11962Sagaponack 712290 0–2 — — Not published
11963Sag Harbor 8,3902,245 0–2 — — Not published
11964Shelter Island 2,906466 0–2 — — Not published
11965Shelter Island Heights 404326 0–2 — — Not published
11969Southampton —75 0–2 — — Not published
11970South Jamesport 41628 0–2 — — Not published
11971Southold 6,3611,306 0–2 — — Not published
11972Speonk 334680 0–2 — — Not published
11973Upton 482,693 0–2 — — Not published
11977Westhampton 2,843665 0–2 — — Not published
11978Westhampton Beach 4,7052,397 0–2 — — Not published
11980Yaphank 5,8554,113 0–2 — — Not published
00501Holtsville —0 0–2 — — Not published
06390Fishers Island 72273 0–2 — — Not published

Scroll the table sideways to see all columns.

Find an actual space in Melville

The numbers above tell you how the market looks. To find a specific storefront, these marketplaces list available retail space for lease.

LoopNet
Largest commercial marketplace
Browse Melville retail space →
Crexi
Free listings + market data
Browse Melville retail space →
CityFeet
Retail space for lease
Browse Melville retail space →

Open vacancy data (actual empty units) is only published by some cities; where it exists we show it directly. Listings above are third-party.

Census withholds some ZIP-by-industry cells to protect small businesses. 0–2 means the cell was not published (Census publishes industry counts only at 3+ per ZIP), so the ZIP is left unranked rather than counted as zero. ~ means the count is estimated from the broader industry group and can be off by a business or two.

Follow Suffolk County and dentists

When a data vintage changes or a section of this report is revised, we post it to a public update feed. No email address, no account, no tracking — and nothing is sent unless something actually changed.

Subscribe to updates (RSS) How these numbers are built →

Methodology & sources

Establishments. U.S. Census ZIP Code Business Patterns (ZBP 2023), NAICS 621210 — offices of dentists. Counts establishments with paid employees. ZBP is published annually with a ~2-year lag.

Fresh county signal. BLS QCEW (quarterly) is newer than ZBP — 2026 Q1 shows 645 establishments county-wide for this industry. It cannot be broken down by ZIP.

Population. U.S. Census American Community Survey 2024 5-year ZCTA population (table B01003). Workers are the ZIP's total employment from the same 2023 ZBP file.

Demand ("people present"). Demand comes from residents and daytime workers: residents + 0.5 × workers. This is the single documented assumption in the model and can be tuned.

Index. index = (ZIP establishments ÷ ZIP demand × 10,000) ÷ the U.S. average for this industry (3.35 per 10,000 present). It is a supply-side density measure; it does not capture income, rent, tourism, or whether locals actually want more.

Read the full methodology →  ·  Data sources & vintages →

BizGapMap — free, no-login small-business saturation reports for major U.S. counties. Built entirely from public U.S. Census, BLS, and IRS data (ZBP 2023, ACS 2024 5-year, PEP 2024, LODES, QCEW, IRS SOI). No forecasts, no revenue guesses — withheld cells are marked, and the few derived counts are labelled as estimates.