Dental Practice Profile Coverage by U.S. County

Dental.me maps 244,113 canonical public dental practice profiles to 3,007 U.S. counties and county equivalents using the Census 2020 ZIP Code Tabulation Area relationship file. This original study measures Dental.me directory coverage by county, not dentist workforce supply or access to care.

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County-level Dental.me directory coverage

The study groups canonical practice profiles by ZIP and uses the county containing the largest share of each Census ZCTA land area. Mapping coverage and limitations are published with the results.

245,444Canonical profiles
244,113County-mapped profiles
99.5%Mapping coverage
3,007Counties represented

Direct answer: Los Angeles County in California has the largest Dental.me county assignment in this snapshot, with 10,418 canonical practice profiles. The result describes Dental.me profile coverage and should not be interpreted as an official count of dental offices or licensed dentists.

Download the complete county dataset (CSV) · Dental.me snapshot August 5, 2026 · Census relationship geography: 2020 ZCTAs.

Counties with the most Dental.me practice profiles

The table shows the first 100 county assignments. The downloadable CSV contains every represented county and county equivalent, plus Google/Maps, rating, website, hours, and mapped-ZCTA fields.

Dental.me canonical dental practice profile coverage by U.S. county and county equivalent
RankCounty or equivalentStateLargest mapped city directoryProfilesGoogle/MapsRatedWebsitesHours
1Los Angeles CountyCaliforniaLos Angeles10,4187,1025,4654,0304,752
2Cook CountyIllinoisChicago4,6612,8132,2321,8951,915
3Orange CountyCaliforniaIrvine4,4253,2492,4752,0242,240
4Maricopa CountyArizonaPhoenix3,5922,4431,9131,8991,789
5Harris CountyTexasHouston3,3392,0421,7761,5171,607
6San Diego CountyCaliforniaSan Diego3,0041,9181,5721,3871,431
7King CountyWashingtonSeattle2,4851,7821,3701,3861,296
8New York CountyNew YorkNew York2,3331,059924838844
9Santa Clara CountyCaliforniaSan Jose2,3011,7251,3661,1201,263
10Queens CountyNew YorkFlushing2,1611,4401,086658862
11Dallas CountyTexasDallas2,0951,128956878908
12Nassau CountyNew YorkGreat Neck1,8641,4131,035820845
13San Bernardino CountyCaliforniaRancho Cucamonga1,7631,171923706836
14Miami-Dade CountyFloridaMiami1,760972895672810
15Kings CountyNew YorkBrooklyn1,723790668462530
16Alameda CountyCaliforniaOakland1,6501,239928751816
17Riverside CountyCaliforniaRiverside1,6471,180900700818
18Clark CountyNevadaLas Vegas1,6261,064873790794
19Tarrant CountyTexasFort Worth1,6141,144942867881
20Middlesex CountyMassachusettsCambridge1,5871,063861836799
21Montgomery CountyMarylandRockville1,5481,195843752711
22Oakland CountyMichiganSouthfield1,488996733649645
23Fairfax CountyVirginiaFairfax1,4831,066876814789
24Bergen CountyNew JerseyFort Lee1,4751,118839673696
25Bexar CountyTexasSan Antonio1,454867740658662
26Sacramento CountyCaliforniaSacramento1,3871,093780642696
27Suffolk CountyNew YorkHuntington1,299911670539543
28Westchester CountyNew YorkWhite Plains1,2971,011685569578
29Allegheny CountyPennsylvaniaPittsburgh1,296960607481468
30DuPage CountyIllinoisNaperville1,262907698631604
31Broward CountyFloridaFt Lauderdale1,246713666573599
32Collin CountyTexasPlano1,237815716699673
33Wayne CountyMichiganDetroit1,220777590480501
34Contra Costa CountyCaliforniaWalnut Creek1,161896683623613
35Travis CountyTexasAustin1,142769608592577
36Salt Lake CountyUtahSalt Lake City1,141817628574549
37Cuyahoga CountyOhioCleveland1,109787564492461
38Hennepin CountyMinnesotaMinneapolis1,092739499541465
39Fulton CountyGeorgiaAtlanta1,085760584560534
40Philadelphia CountyPennsylvaniaPhiladelphia1,075649469352370
41Fairfield CountyConnecticutStamford1,074836591512520
42Franklin CountyOhioColumbus1,056752544533489
43Suffolk CountyMassachusettsBoston1,042544355370293
44Wake CountyNorth CarolinaRaleigh1,015712571558525
45San Francisco CountyCaliforniaSan Francisco1,004659530445471
46Honolulu CountyHawaiiHonolulu958768479362395
47Palm Beach CountyFloridaBoca Raton943535494437455
48Ventura CountyCaliforniaOxnard930728531450474
49Montgomery CountyPennsylvaniaLansdale928660458402408
50St. Louis CountyMissouriSt. Louis910716516434429
51Hartford CountyConnecticutWest Hartford890692492433442
52Oklahoma CountyOklahomaOklahoma City884630443448380
53Middlesex CountyNew JerseyEdison863555431369358
54San Mateo CountyCaliforniaSan Mateo853688507401442
55District of Columbia CountyDistrict of ColumbiaWashington850632412357351
56Macomb CountyMichiganSterling Heights813570475382398
57Norfolk CountyMassachusettsQuincy811522425416406
58Marion CountyIndianaIndianapolis802567411384358
59Essex CountyNew JerseyNewark799580400324333
60Erie CountyNew YorkBuffalo770548364283307
61New Haven CountyConnecticutNew Haven769603399342328
62Mecklenburg CountyNorth CarolinaCharlotte766322292286275
63Hillsborough CountyFloridaTampa765483445414416
64Jefferson CountyKentuckyLouisville762562383324327
65Monmouth CountyNew JerseyFreehold756532400357338
66Bronx CountyNew YorkBronx755467284201211
67Essex CountyMassachusettsLynn739537416381371
68Gwinnett CountyGeorgiaLawrenceville738525401360351
69Shelby CountyTennesseeMemphis735575387288335
70Denver CountyColoradoDenver722485370352335
71Fresno CountyCaliforniaFresno719507394303336
72Fort Bend CountyTexasSugar Land714430385363349
73Multnomah CountyOregonPortland712516347330318
74Lake CountyIllinoisBuffalo Grove710507385343331
75Denton CountyTexasCarrollton709479409391385
76Milwaukee CountyWisconsinMilwaukee708485351340303
77Snohomish CountyWashingtonEverett706520406414387
78Baltimore CountyMarylandBaltimore699543388327341
79Pima CountyArizonaTucson693509379335321
80Davidson CountyTennesseeNashville677497338316308
81Worcester CountyMassachusettsWorcester653478372348336
82Morris CountyNew JerseyMorristown653494373328319
83Pierce CountyWashingtonTacoma653467369347336
84El Paso CountyColoradoColorado Springs651434343331314
85Bucks CountyPennsylvaniaDoylestown651479352308300
86Prince George's CountyMarylandBowie650473332271261
87Johnson CountyKansasOverland Park646496371357327
88Cobb CountyGeorgiaMarietta634483377366340
89Hamilton CountyOhioCincinnati625455360282286
90Monroe CountyNew YorkRochester613460308307274
91Bernalillo CountyNew MexicoAlbuquerque607439293272268
92Arapahoe CountyColoradoAurora602436341328318
93Hudson CountyNew JerseyJersey City596399322237273
94Orange CountyFloridaOrlando589368339299306
95Tulsa CountyOklahomaTulsa578416327299288
96DeKalb CountyGeorgiaAtlanta575423308256264
97Jackson CountyMissouriKansas City565404278251245
98Jefferson CountyColoradoLakewood563420334308302
99Jefferson CountyAlabamaBirmingham551370261225235
100El Paso CountyTexasEl Paso551389231189198

How county assignment works

Dental.me numerator: canonical public profiles with an indexation status of indexable or indexable_basic. Archived, duplicate, draft, and unsafe records are excluded.

Geographic method: profiles are grouped by five-digit ZIP. The U.S. Census Bureau 2020 ZCTA-to-county relationship file can associate one ZCTA with multiple counties, so Dental.me assigns that ZIP to the county containing the largest share of the ZCTA land area. Water area provides only a deterministic tie-breaker. The largest mapped city directory is the indexable Dental.me city with the most canonical profiles assigned to that county by the same ZIP method; it is a navigation aid, not a claim that the city represents the entire county.

Coverage: 244,113 of 245,444 canonical profiles (99.46%) mapped to a same-state Census ZCTA and county. 1,331 profiles lacked a usable same-state mapping and are not assigned in the county table.

Limitation: ZIP-based county assignment is an approximation for ZIPs that cross county boundaries. Counts measure Dental.me directory coverage. They do not establish the official number of dental offices, licensed dentists, appointment capacity, affordability, insurance participation, travel time, or access to care.

Source: U.S. Census Bureau geographic relationship files.

Related research: Practice profiles per capita by state · Top U.S. cities by practice profiles · Contact-data coverage.

Frequently asked questions

Which county has the most Dental.me dental practice profiles?

Los Angeles County in California has 10,418 canonical Dental.me practice profiles in this snapshot.

Does this dataset count licensed dentists by county?

No. It counts canonical Dental.me dental practice profiles assigned to counties by ZIP. One practice profile can have one or more providers, and this is not a licensing census.

How does Dental.me assign a ZIP that crosses county lines?

Dental.me assigns the ZIP to the county containing the largest share of that Census 2020 ZCTA land area. The CSV labels this dominant-county method, and the page publishes its limitations.

Why are some Dental.me practice profiles not mapped to a county?

A profile is left out of the county table when its ZIP is missing, malformed, absent from the Census ZCTA relationship file, or maps to a different state than the profile.

Does a higher profile count mean better access to dental care?

No. The count measures Dental.me directory coverage. It does not measure provider supply, appointment capacity, affordability, insurance participation, or travel time.

How to cite this Dental.me data

Suggested citation: Dental.me. Dental Practice Profile Coverage by U.S. County. Updated August 6, 2026. https://dental.me/dental-market-data/dental-practice-profiles-by-county/.

Download Dental.me dental practice profile coverage by county dataset (CSV).

Source basis: Dental.me combines CMS NPPES data files and the NPI Registry with provider taxonomy, business-profile enrichment, practice websites, owner-submitted updates, correction requests, and Dental.me review workflows.

For aggregate-data questions or a custom state or city breakdown, contact support@dental.me.

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