Number of Quest Diagnostics clinics in the United States in 2026

Last updated on March 30, 2026
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How many Quest Diagnostics clinics are there in the United States?

There are 6,079 Quest Diagnostics clinics in the United States as of March 30, 2026. The state and territory with the most number of Quest Diagnostics locations in the US is Texas, with 725 clinics, which is about 12% of all Quest Diagnostics clinics in the US.

6,079
Locations
52
States and Territories
2,555
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 6,079 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

725 (12%)

A clinic for every 39,994 people, in Texas with about 12% of the total number of Quest Diagnostics clinics


California

595 (10%)

A clinic for every 66,407 people, in California with about 10% of the total number of Quest Diagnostics clinics


Florida

579 (10%)

A clinic for every 37,095 people, in Florida with about 10% of the total number of Quest Diagnostics clinics


State / Territory Number of clinics Population Population per clinic
Texas 725 (12%) 29.00M 39.99K
California 595 (10%) 39.51M 66.41K
Florida 579 (10%) 21.48M 37.09K
New York 379 (6%) 19.45M 51.33K
Ohio 266 (4%) 11.69M 43.94K
Pennsylvania 245 (4%) 12.80M 52.25K
Georgia 233 (4%) 10.62M 45.57K
Tennessee 229 (4%) 6.83M 29.82K
New Jersey 189 (3%) 8.88M 46.99K
North Carolina 189 (3%) 10.49M 55.49K

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 25

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
Bon Secours - Afc Uc Cherrydale 3213 N Pleasantburg Dr Cherrydale Shopping Center Ste E2 Greenville SC 29609 864-467-2005 34.8891407 -82.4003955 3213 N Pleasantburg Dr Cherrydale Shopping Center Ste E2, Greenville, SC, 29609 USA 2026-03-30
Diagnostic Laboratory Of Oklahoma - Elk City Psc 1925 W 3rd St Ste 2 Elk City OK 73644 580-225-2018 35.4120214 -99.4279028 1925 W 3rd St Ste 2, Elk City, OK, 73644 USA 2026-03-30
Usa Health Industrial Medicine 1976 Michigan Ave Mobile AL 36615 251-660-5910 30.646152 -88.0776096 1976 Michigan Ave, Mobile, AL, 36615 USA 2026-03-30
Access Medical Clinic - Clarksville 409 S Rogers St Clarksville AR 72830 479-491-4141 35.4660957 -93.4588872 409 S Rogers St, Clarksville, AR, 72830 USA 2026-03-30
First Choice Drug Testing & Occ Hlth 6400 Scott Hamilton Dr Little Rock AR 72209 501-661-9992 34.6905271 -92.3191064 6400 Scott Hamilton Dr, Little Rock, AR, 72209 USA 2026-03-30
Fastest Labs Of Scottsdale 7315 E Evans Rd Scottsdale AZ 85260 480-550-7230 33.6157104 -111.9236275 7315 E Evans Rd, Scottsdale, AZ, 85260 USA 2026-03-30
Hoyt Clinic Family Practice Associates - Questselect Members Only 207 Highland Ave Hoyt KS 66440 785-986-6630 39.2467767 -95.7063929 207 Highland Ave, Hoyt, KS, 66440 USA 2026-03-30
No Drugs Inc - Lakeport 2559 Lakeshore Blvd Ste 4 Lakeport CA 95453 800-490-3784 39.0627677 -122.9138734 2559 Lakeshore Blvd Ste 4, Lakeport, CA, 95453 USA 2026-03-30
Fastest Labs Of Gateway Cities 3331 E Artesia Blvd Long Beach CA 90805 562-470-6219 33.8754642 -118.1528852 3331 E Artesia Blvd, Long Beach, CA, 90805 USA 2026-03-30
Sonora Quest Laboratories - Cottonwood - Candy Ln & Az - 89a 203 S Candy Ln Ste 4b Cottonwood AZ 86326 928-634-2725 34.737257 -112.030753 203 S Candy Ln Ste 4b, Cottonwood, AZ, 86326 USA 2026-03-30

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

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