Number of Quest Diagnostics clinics in the United States in 2026

Last updated on April 25, 2026
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How many Quest Diagnostics clinics are there in the United States?

There are 6,074 Quest Diagnostics clinics in the United States as of April 25, 2026. The state and territory with the most number of Quest Diagnostics locations in the US is Texas, with 727 clinics, which is about 12% of all Quest Diagnostics clinics in the US.

6,074
Locations
52
States and Territories
2,553
Cities
Map of Quest Diagnostics clinics in the United States


How can I download a list of Quest Diagnostics clinics in the United States into Excel?

You can download the complete list of 6,074 Quest Diagnostics locations data as an Excel file, along with geo-coded addresses, phone numbers and open hours from our data store.

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Top 10 States and Territories with the most Quest Diagnostics clinics

Texas

727 (12%)

A clinic for every 39,884 people, in Texas with about 12% of the total number of Quest Diagnostics clinics


California

594 (10%)

A clinic for every 66,519 people, in California with about 10% of the total number of Quest Diagnostics clinics


Florida

580 (10%)

A clinic for every 37,031 people, in Florida with about 10% of the total number of Quest Diagnostics clinics


State / Territory Number of clinics Population Population per clinic
Texas 727 (12%) 29.00M 39.88K
California 594 (10%) 39.51M 66.52K
Florida 580 (10%) 21.48M 37.03K
New York 378 (6%) 19.45M 51.47K
Ohio 266 (4%) 11.69M 43.94K
Pennsylvania 244 (4%) 12.80M 52.47K
Georgia 235 (4%) 10.62M 45.18K
Tennessee 229 (4%) 6.83M 29.82K
North Carolina 191 (3%) 10.49M 54.91K
Illinois 190 (3%) 12.67M 66.69K

There are Quest Diagnostics clinics in 54 states and territories in the United States

States and Territories without any Quest Diagnostics clinics

These states and territories do not have any Quest Diagnostics clinics

  • American Samoa
  • Guam
  • U.S. Virgin Islands
  • Northern Mariana Islands

There are 4 states and territories without Quest Diagnostics clinics in the United States

Cities with the most number of Quest Diagnostics clinics in the United States

City State / Territory Number of Locations
Houston Texas 68
New York New York 51
Brooklyn New York 44
San Antonio Texas 39
Jacksonville Florida 39
Dallas Texas 37
Oklahoma City Oklahoma 28
Orlando Florida 27
Bronx New York 27
Austin Texas 26

Download the complete database of Quest Diagnostics Locations in USA

You can download the full list of Quest Diagnostics locations used for this analysis from our data store. Here is a random sample of 10 records for you to look at the fields and the data that we provide.

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Name Street City State / Territory Zip Code Phone Latitude Longitude Address Country Last Updated Date
Rancho Paseo Medical Grp 835 Highland Springs Ave Ste 300 Beaumont CA 92223 951-769-0079 33.9344301 -116.9489071 835 Highland Springs Ave Ste 300, Beaumont, CA, 92223 USA 2026-04-25
Sharp Rees - Stealy Chula Vista 525 Third Ave Second Floor Chula Vista CA 91910 619-585-4050 32.6338213 -117.0765121 525 Third Ave Second Floor, Chula Vista, CA, 91910 USA 2026-04-25
Quest Diagnostics - Yucaipa Oak Glen Road - Employer Drug Testing Not Offered 33490 Oak Glen Rd Ste D Yucaipa CA 92399 909-253-5194 34.0321726 -117.0756576 33490 Oak Glen Rd Ste D, Yucaipa, CA, 92399 USA 2026-04-25
Ar Journey Lab Llc 3111 Military Rd Benton AR 72015 501-204-8749 34.5922879 -92.5581198 3111 Military Rd, Benton, AR, 72015 USA 2026-04-25
Muleshoe Area Medical Center - Questselect Members Only 708 S 1st St Muleshoe TX 79347 806-272-4524 34.221155 -102.72835 708 S 1st St, Muleshoe, TX, 79347 USA 2026-04-25
Citizens Baptist Medical Center - Purchased Service 604 Stone Ave Talladega AL 35160 256-362-8111 33.4397956 -86.0921538 604 Stone Ave, Talladega, AL, 35160 USA 2026-04-25
Occupational Safety Services, Inc 1711 Hillyer Robinson Industrial Pkwy S Ste A Oxford AL 36203 256-835-6090 33.6207208 -85.8097009 1711 Hillyer Robinson Industrial Pkwy S Ste A, Oxford, AL, 36203 USA 2026-04-25
Crossroads Drug & Alc - W Memphis 203 W Bond Ave West Memphis AR 72301 870-732-5002 35.1483507 -90.1880456 203 W Bond Ave, West Memphis, AR, 72301 USA 2026-04-25
Access Medical Clinic - Osceola 1248 W Keiser Ave Osceola AR 72370 870-822-4401 35.6983535 -89.9872598 1248 W Keiser Ave, Osceola, AR, 72370 USA 2026-04-25
Northbay Occupational Health 1679 E Monte Vista Ave Ste 104 Vacaville CA 95688 707-646-4600 38.3700674 -121.9606114 1679 E Monte Vista Ave Ste 104, Vacaville, CA, 95688 USA 2026-04-25

* Open hours are not displayed here as it is too big to show on a reasonably sized screen.

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