Number of Quest Diagnostics clinics in the United States in 2026
How many Quest Diagnostics clinics are there in the United States?
There are 6,118 Quest Diagnostics clinics in the United States as of June 25, 2026. The state and territory with the most number of Quest Diagnostics locations in the US is Texas, with 733 clinics, which is about 12% of all Quest Diagnostics clinics in the US.
How can I download a list of Quest Diagnostics clinics in the United States into Excel?
You can download the complete list of 6,118 Quest Diagnostics locations data as an Excel file, along with geo-coded addresses, phone numbers and open hours from our data store.
Download DatasetTop 10 States and Territories with the most Quest Diagnostics clinics
Texas
733 (12%)
A clinic for every 39,558 people, in Texas with about 12% of the total number of Quest Diagnostics clinics
California
633 (10%)
A clinic for every 62,420 people, in California with about 10% of the total number of Quest Diagnostics clinics
Florida
577 (9%)
A clinic for every 37,224 people, in Florida with about 9% of the total number of Quest Diagnostics clinics
| State / Territory | Number of clinics | Population | Population per clinic |
|---|---|---|---|
| Texas | 733 (12%) | 29.00M | 39.56K |
| California | 633 (10%) | 39.51M | 62.42K |
| Florida | 577 (9%) | 21.48M | 37.22K |
| New York | 378 (6%) | 19.45M | 51.47K |
| Ohio | 268 (4%) | 11.69M | 43.62K |
| Pennsylvania | 243 (4%) | 12.80M | 52.68K |
| Georgia | 235 (4%) | 10.62M | 45.18K |
| Tennessee | 226 (4%) | 6.83M | 30.22K |
| New Jersey | 196 (3%) | 8.88M | 45.32K |
| North Carolina | 192 (3%) | 10.49M | 54.62K |
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 | 66 |
| New York | New York | 50 |
| Brooklyn | New York | 44 |
| San Antonio | Texas | 39 |
| Jacksonville | Florida | 38 |
| Dallas | Texas | 37 |
| Oklahoma City | Oklahoma | 28 |
| Orlando | Florida | 27 |
| Austin | Texas | 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.
| Name | Street | City | State / Territory | Zip Code | Phone | Latitude | Longitude | Address | Country | Last Updated Date |
|---|---|---|---|---|---|---|---|---|---|---|
| Employee On - Boarding Specialties | 219 E 20th St Ste 300 | Cheyenne | WY | 82001 | 307-640-1560 | 41.1372478 | -104.8144091 | 219 E 20th St Ste 300, Cheyenne, WY, 82001 | USA | 2026-06-25 |
| Onsite Collections Only | 1780 Northfall La Ste 301 | Alpharetta | GA | 30009 | 770-754-1095 | 34.0673883 | -84.3073744 | 1780 Northfall La Ste 301, Alpharetta, GA, 30009 | USA | 2026-06-25 |
| Cheyenne Regional Medical Center | 2301 House Ave Ste 500a | Cheyenne | WY | 82001 | 307-633-7897 | 41.140318 | -104.815729 | 2301 House Ave Ste 500a, Cheyenne, WY, 82001 | USA | 2026-06-25 |
| Bestmed Urgent Care - Cheyenne | 2001 Central Ave | Cheyenne | WY | 82001 | 307-514-9888 | 41.1369364 | -104.8164338 | 2001 Central Ave, Cheyenne, WY, 82001 | USA | 2026-06-25 |
| Bridger Valley Medical Group - Mountain View | 531 Parkway Dr | Mountain View | WY | 82939 | 307-783-8152 | 41.2740459 | -110.3354886 | 531 Parkway Dr, Mountain View, WY, 82939 | USA | 2026-06-25 |
| Uinta Medical Group | 150 Arrowhead Dr Ste 2 | Evanston | WY | 82930 | 307-789-8881 | 41.2428562 | -110.9888093 | 150 Arrowhead Dr Ste 2, Evanston, WY, 82930 | USA | 2026-06-25 |
| Value Lab, Llc | 832 N Galena Ave | Dixon | IL | 61021 | 815-677-9384 | 41.8551932 | -89.4877138 | 832 N Galena Ave, Dixon, IL, 61021 | USA | 2026-06-25 |
| Memorial Health Bristow | 26020 State Road 145 | Bristow | IN | 47515 | 812-357-2099 | 38.2201433 | -86.6965505 | 26020 State Road 145, Bristow, IN, 47515 | USA | 2026-06-25 |
| Sullivan County Community Hospital - Lab | 2200 N Section St | Sullivan | IN | 47882 | 812-268-4311 | 39.1256786 | -87.4127722 | 2200 N Section St, Sullivan, IN, 47882 | USA | 2026-06-25 |
| Qlabs, Inc - Questselect Members Only | 978 Blue Prince Rd | Bluefield | WV | 24701 | 304-926-0565 | 37.3057312 | -81.1443694 | 978 Blue Prince Rd, Bluefield, WV, 24701 | USA | 2026-06-25 |
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