Number of Quest Diagnostics clinics in the United States in 2026

Last updated on October 27, 2026
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How many Quest Diagnostics clinics are there in the United States?

There are 6,068 Quest Diagnostics clinics in the United States as of October 27, 2026. The state and territory with the most number of Quest Diagnostics locations in the US is Texas, with 731 clinics, which is about 12% of all Quest Diagnostics clinics in the US.

6,068
Locations
51
States and Territories
2,546
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 6,068 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

731 (12%)

A clinic for every 43,379 people, in Texas with about 12% of the total number of Quest Diagnostics clinics


California

629 (10%)

A clinic for every 62,568 people, in California with about 10% of the total number of Quest Diagnostics clinics


Florida

587 (10%)

A clinic for every 39,971 people, in Florida with about 10% of the total number of Quest Diagnostics clinics


State / Territory Number of clinics Population Population per clinic
Texas 731 (12%) 31.71M 43.38K
California 629 (10%) 39.35M 62.57K
Florida 587 (10%) 23.46M 39.97K
New York 374 (6%) 20.00M 53.48K
Ohio 257 (4%) 11.90M 46.31K
Pennsylvania 244 (4%) 13.06M 53.52K
Georgia 227 (4%) 11.30M 49.79K
Tennessee 222 (4%) 7.32M 32.95K
New Jersey 197 (3%) 9.55M 48.47K
North Carolina 192 (3%) 11.20M 58.32K

There are Quest Diagnostics clinics in 53 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

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

There are 5 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 63
New York New York 50
Brooklyn New York 44
San Antonio Texas 40
Jacksonville Florida 39
Dallas Texas 34
Austin Texas 28
Oklahoma City Oklahoma 28
Orlando Florida 27
Las Vegas Nevada 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
MD Now T - St Petersburg 3030 4th St N St Petersburg FL 33704 727-610-3696 27.8000729 -82.6389098 3030 4th St N, St Petersburg, FL, 33704 USA 2026-10-27
Quest Diagnostics - Jacksonville Roosevelt 4509-009 St Johns Avenue Jacksonville FL 32210 904-254-7767 30.288904 -81.721233 4509-009 St Johns Avenue, Jacksonville, FL, 32210 USA 2026-10-27
MD Now H - South Lakewood Ranch 7337 University Pkwy Lakewood Ranch FL 34202 941-212-2445 27.3868062 -82.3941607 7337 University Pkwy, Lakewood Ranch, FL, 34202 USA 2026-10-27
Lighthouse Chiropractic Center, Llc 4509 Winder Hwy Flowery Branch GA 30542 770-503-0500 34.18445 -83.8512779 4509 Winder Hwy, Flowery Branch, GA, 30542 USA 2026-10-27
Lynn County Hospital - Questselect Members Only 2600 Lockwood St Tahoka TX 79373 806-998-4533 33.1672287 -101.8162149 2600 Lockwood St, Tahoka, TX, 79373 USA 2026-10-27
San Angelo County Health Department - Questselect Members Only 2030 Pulliam St San Angelo TX 76905 325-657-4214 31.4719181 -100.4009428 2030 Pulliam St, San Angelo, TX, 76905 USA 2026-10-27
Fast Pace - Hot Springs Ar 3301 Central Ave Hot Springs AR 71913 501-624-8040 34.4765223 -93.0594119 3301 Central Ave, Hot Springs, AR, 71913 USA 2026-10-27
Access Medical Clinic - Flippin 806 E Main St Flippin AR 72634 870-456-2266 36.2770176 -92.5862128 806 E Main St, Flippin, AR, 72634 USA 2026-10-27
Sonora Quest Laboratories - Valencia Safeway Wellness Center - Rita Ranch - Employer Drug Testing Not Offered 9050 E Valencia Rd Tucson AZ 85747 520-203-7270 32.1178697 -110.7988632 9050 E Valencia Rd, Tucson, AZ, 85747 USA 2026-10-27
Quest Diagnostics - Jacksonville Deerwood 4372 Southside Blvd Ste 304 Jacksonville FL 32216 904-254-3533 30.2666485 -81.5590484 4372 Southside Blvd Ste 304, Jacksonville, FL, 32216 USA 2026-10-27

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

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