Number of Quest Diagnostics locations in the US (2026)
1,897 locations
as of 2026-07-02 · 46 states
Top states
| State | Locations | Per 100k residents |
|---|---|---|
| CA | 355 | — |
| FL | 252 | — |
| TX | 181 | — |
| NY | 153 | — |
| PA | 130 | — |
| CT | 88 | — |
| MA | 68 | — |
| NJ | 68 | — |
| MD | 48 | — |
| OK | 48 | — |
Top cities
| City | Locations |
|---|---|
| Houston, TX | 25 |
| Brooklyn, NY | 20 |
| Oklahoma City, OK | 14 |
| New York, NY | 12 |
| Orlando, FL | 12 |
| Jacksonville, FL | 11 |
| Las Vegas, NV | 11 |
| Philadelphia, PA | 11 |
| San Antonio, TX | 11 |
| Miami, FL | 10 |
Location count over time
No trend data yet
This brand is newly listed — a trend line appears here once a second monthly update lands.