Number of Quest Diagnostics clinics in the United States in 2025

Last updated on December 01, 2025
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How many Quest Diagnostics clinics are there in the United States?

There are 6,185 Quest Diagnostics clinics in the United States as of December 01, 2025. The state and territory with the most number of Quest Diagnostics locations in the US is Texas, with 689 clinics, which is about 11% of all Quest Diagnostics clinics in the US.

6,185
Locations
52
States and Territories
2,584
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 6,185 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

689 (11%)

A clinic for every 42,084 people, in Texas with about 11% of the total number of Quest Diagnostics clinics


California

645 (10%)

A clinic for every 61,259 people, in California with about 10% of the total number of Quest Diagnostics clinics


Florida

583 (9%)

A clinic for every 36,840 people, in Florida with about 9% of the total number of Quest Diagnostics clinics


State / Territory Number of clinics Population Population per clinic
Texas 689 (11%) 29.00M 42.08K
California 645 (10%) 39.51M 61.26K
Florida 583 (9%) 21.48M 36.84K
New York 385 (6%) 19.45M 50.53K
Ohio 261 (4%) 11.69M 44.78K
Pennsylvania 247 (4%) 12.80M 51.83K
Georgia 225 (4%) 10.62M 47.19K
New Jersey 209 (3%) 8.88M 42.50K
Tennessee 205 (3%) 6.83M 33.31K
Illinois 189 (3%) 12.67M 67.05K

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 69
New York New York 55
Brooklyn New York 44
San Antonio Texas 42
Jacksonville Florida 39
Dallas Texas 28
Austin Texas 28
Orlando Florida 27
Oklahoma City Oklahoma 27
Bronx New York 27

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
South Forsyth Chiropractic (Preferred) 5670 Atlanta Hwy Ste C1 Alpharetta GA 30004 770-777-0900 34.144979 -84.252559 5670 Atlanta Hwy Ste C1, Alpharetta, GA, 30004 USA 2025-12-01
Southwest Georgia Regional Med Ctr - Questselect Members Only (Preferred) 109 Randolph Street Cuthbert GA 39840 229-732-2181 31.774798 -84.793152 109 Randolph Street, Cuthbert, GA, 39840 USA 2025-12-01
Quest Diagnostics 1119 Morningside Dr Perry GA 31069 478-343-6692 32.4595268 -83.7117356 1119 Morningside Dr, Perry, GA, 31069 USA 2025-12-01
Piedmont Uc - Columbus Bkm (Preferred) 7301 Blackmon Rd Columbus GA 31909 706-321-3750 32.5497963 -84.8957492 7301 Blackmon Rd, Columbus, GA, 31909 USA 2025-12-01
Piedmont Uc - Cumming Tribble Rd (Preferred) 3420 Canton Hwy Cumming GA 30040 678-535-0250 34.2392199 -84.2233024 3420 Canton Hwy, Cumming, GA, 30040 USA 2025-12-01
Quest Diagnostics - Redmond Family Care West Rome 2112 Shorter Ave Nw Ste 200 Rome GA 30165 706-978-6764 34.2723 -85.2246 2112 Shorter Ave Nw Ste 200, Rome, GA, 30165 USA 2025-12-01
Alpha Labs Inc (Preferred) 155 Westridge Pkwy Ste 108 Mcdonough GA 30253 404-587-5119 33.4106995 -84.1966108 155 Westridge Pkwy Ste 108, Mcdonough, GA, 30253 USA 2025-12-01
Piedmont Uc - Macon Zebulon Rd (Preferred) 5791 Zebulon Rd Macon GA 31210 478-787-0410 32.8803471 -83.7545358 5791 Zebulon Rd, Macon, GA, 31210 USA 2025-12-01
Children's Healthcare Of Atlanta At Satellite Blvd - Pediatric Collections Only (Preferred) 2660 Satellite Blvd Duluth GA 30096 404-785-8465 33.9667765 -84.10134998 2660 Satellite Blvd, Duluth, GA, 30096 USA 2025-12-01
Coastal Care Medical Center - Questselect Members Only (Preferred) 1405 Alice Street Waycross GA 31501 912-285-8822 31.2203646 -82.3518912 1405 Alice Street, Waycross, GA, 31501 USA 2025-12-01

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

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