Number of Quest Diagnostics clinics in the United States in 2026
How many Quest Diagnostics clinics are there in the United States?
There are 6,188 Quest Diagnostics clinics in the United States as of January 06, 2026. The state and territory with the most number of Quest Diagnostics locations in the US is Texas, with 681 clinics, which is about 11% 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 6,188 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
681 (11%)
A clinic for every 42,579 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
589 (10%)
A clinic for every 36,465 people, in Florida with about 10% of the total number of Quest Diagnostics clinics
| State / Territory | Number of clinics | Population | Population per clinic |
|---|---|---|---|
| Texas | 681 (11%) | 29.00M | 42.58K |
| California | 645 (10%) | 39.51M | 61.26K |
| Florida | 589 (10%) | 21.48M | 36.47K |
| New York | 382 (6%) | 19.45M | 50.93K |
| Ohio | 262 (4%) | 11.69M | 44.62K |
| Pennsylvania | 246 (4%) | 12.80M | 52.04K |
| Georgia | 239 (4%) | 10.62M | 44.42K |
| Tennessee | 210 (3%) | 6.83M | 32.52K |
| New Jersey | 203 (3%) | 8.88M | 43.75K |
| North Carolina | 202 (3%) | 10.49M | 51.92K |
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 | 70 |
| New York | New York | 53 |
| Brooklyn | New York | 43 |
| San Antonio | Texas | 42 |
| Jacksonville | Florida | 36 |
| Las Vegas | Nevada | 28 |
| Austin | Texas | 28 |
| Dallas | Texas | 27 |
| Orlando | Florida | 27 |
| Oklahoma City | Oklahoma | 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Quest Diagnostics - Park Ridge | 1600 Dempster St Ste 218 | Park Ridge | IL | 60068 | 847-795-0205 | 42.040239 | -87.846993 | 1600 Dempster St Ste 218, Park Ridge, IL, 60068 | USA | 2026-01-06 |
| Quest Diagnostics - Gsh Occupational Health & Acute Care - Questselect Members Only (Preferred) | 1404 E Main St | Robinson | IL | 62454 | 618-544-8333 | 39.0074812 | -87.7222642 | 1404 E Main St, Robinson, IL, 62454 | USA | 2026-01-06 |
| Dubois County Health Depart - Quest Select Members Only (Preferred) | 1187 S Saint Charles St | Jasper | IN | 47546 | 812-481-7050 | 38.37268 | -86.951155 | 1187 S Saint Charles St, Jasper, IN, 47546 | USA | 2026-01-06 |
| Alia Drug Testing, Llc (Preferred) | 7036 W Belmont Ave | Chicago | IL | 60634 | 708-320-2334 | 41.9381968 | -87.8026714 | 7036 W Belmont Ave, Chicago, IL, 60634 | USA | 2026-01-06 |
| Working Well - Crown Point (Preferred) | 12800 Mississippi Pkwy Ste A204 | Crown Point | IN | 46307 | 219-662-5500 | 41.3855992 | -87.3206505 | 12800 Mississippi Pkwy Ste A204, Crown Point, IN, 46307 | USA | 2026-01-06 |
| Community Medical Center - Questselect Members Only (Preferred) | West Commons Way Suite H888 Route 37 | Toms River | NJ | 08755 | 732-240-1777 | 39.967545 | -74.214711 | West Commons Way Suite H888 Route 37, Toms River, NJ, 08755 | USA | 2026-01-06 |
| Access Medical Clinic - Clarksville (Preferred) | 409 S Rogers St | Clarksville | AR | 72830 | 479-491-4141 | 35.4660957 | -93.4588872 | 409 S Rogers St, Clarksville, AR, 72830 | USA | 2026-01-06 |
| Quest Diagnostics - North Little Rock - Employer Drug Testing Not Offered | 3401 Springhill Dr Ste 160 | North Little Rock | AR | 72117 | 501-246-9251 | 34.7847033 | -92.220117 | 3401 Springhill Dr Ste 160, North Little Rock, AR, 72117 | USA | 2026-01-06 |
| Quest Diagnostics - Examone - Ar | 4620 W Commercial Dr Ste A First Floor | North Little Rock | AR | 72116 | 501-219-2505 | 34.7967249 | -92.222091 | 4620 W Commercial Dr Ste A First Floor, North Little Rock, AR, 72116 | USA | 2026-01-06 |
| Community Howard Regional Hospital - Hospital (Preferred) | 3500 S Lafountain St Laboratory | Kokomo | IN | 46902 | 765-776-8437 | 40.4466457 | -86.1270731 | 3500 S Lafountain St Laboratory, Kokomo, IN, 46902 | USA | 2026-01-06 |
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