questdiagnostics.com · Health & Medical · the Q3 2026 release
Quest Diagnostics has 26 locations in Alabama, its 25th-largest state of the 45 it operates in.
See where Quest Diagnostics opens next →Every figure in this block is measured inside Alabama. Nothing in it is a rate.
| Figure | Value | What it measures |
|---|---|---|
| Locations in Alabama | 26 | Records the US location index holds for Quest Diagnostics inside Alabama right now — a snapshot at the Q3 2026 release, not a change over time. |
| Rank among Quest Diagnostics's states | 25th of 45 | By location count, among the states where this brand clears the publication floor. |
| States with a published Quest Diagnostics page | 45 | States where the brand has at least 3 locations. Smaller states exist in the index and are not published. |
| Locations across those states | 3,497 | The sum of the state table below. Lower than the national count, which includes states under the floor. |
| Alabama's share of that footprint | 0.7% | A share of the published states only. Both halves are the same measure, so this is not a growth rate. |
| Verified openings in Alabama | 1 | A DIFFERENT measure from the count above: openings detected inside the tracked window, not stores standing today. |
| Cities with verified openings in Alabama | 1 | Distinct cities after folding spelling variants. See the city table. |
Cities with verified openings recorded for Quest Diagnostics in Alabama. The count beside each city is its openings — not its total Quest Diagnostics locations.
| City | Verified openings | Share of Alabama openings | Spellings folded |
|---|---|---|---|
| Florence | 1 | 100.0% | 1 |
The brand's whole published footprint, largest first. Alabama is highlighted in place.
| Rank | State | Locations | Share of footprint |
|---|---|---|---|
| 1 | California | 575 | 16.4% |
| 2 | Florida | 420 | 12.0% |
| 3 | Texas | 298 | 8.5% |
| 4 | New York | 265 | 7.6% |
| 5 | Pennsylvania | 254 | 7.3% |
| 6 | Connecticut | 139 | 4.0% |
| 7 | New Jersey | 135 | 3.9% |
| 8 | Illinois | 123 | 3.5% |
| 9 | Massachusetts | 122 | 3.5% |
| 10 | Ohio | 100 | 2.9% |
| 11 | Michigan | 93 | 2.7% |
| 12 | Maryland | 90 | 2.6% |
| 13 | Georgia | 80 | 2.3% |
| 14 | Virginia | 78 | 2.2% |
| 15 | Missouri | 76 | 2.2% |
| 16 | Colorado | 64 | 1.8% |
| 17 | Washington | 51 | 1.5% |
| 18 | Nevada | 49 | 1.4% |
| 19 | North Carolina | 46 | 1.3% |
| 20 | Indiana | 43 | 1.2% |
| 21 | Oklahoma | 40 | 1.1% |
| 22 | Louisiana | 35 | 1.0% |
| 23 | Oregon | 30 | 0.9% |
| 24 | Tennessee | 30 | 0.9% |
| 25 | Alabama — this page | 26 | 0.7% |
| 26 | South Carolina | 26 | 0.7% |
| 27 | Kentucky | 25 | 0.7% |
| 28 | New Hampshire | 24 | 0.7% |
| 29 | New Mexico | 20 | 0.6% |
| 30 | Arkansas | 18 | 0.5% |
| 31 | Delaware | 18 | 0.5% |
| 32 | Kansas | 16 | 0.5% |
| 33 | Minnesota | 12 | 0.3% |
| 34 | Rhode Island | 11 | 0.3% |
| 35 | Utah | 11 | 0.3% |
| 36 | Alaska | 7 | 0.2% |
| 37 | Arizona | 7 | 0.2% |
| 38 | Mississippi | 7 | 0.2% |
| 39 | West Virginia | 6 | 0.2% |
| 40 | District of Columbia | 5 | 0.1% |
| 41 | Idaho | 5 | 0.1% |
| 42 | Montana | 5 | 0.1% |
| 43 | Wisconsin | 5 | 0.1% |
| 44 | Maine | 4 | 0.1% |
| 45 | Iowa | 3 | 0.1% |
Context for the local figures above. None of it is a Alabama number.
| Figure | Value | Basis |
|---|---|---|
| US locations | 3,531 | At the latest vintage, Q3 2026. |
| US locations at the window start | 3,371 | The first tracked vintage, Q4 2024. |
| Net new over the window | +160 | The difference between the two counts above. A count movement, not a count of openings. |
| Growth over the window | +4.8% | Percentage change in the count between the first and latest vintages, nationwide. |
| Growth as a multiple | 1.0x | The same movement stated as a multiple of the starting count. |
| Growth against its category | +4.8% | The brand's percentage change minus its category's, so a rising tide is subtracted out. |
| Mean quarterly change | +34 | Average count movement per vintage step. The default ranking key on the hub. |
| Verified openings in the window | 204 | Individually dated location records new to the index inside the window, nationwide. |
| Openings pace, latest step | withheld: the latest step is majority batch-suspect — see the note under this table | Verified openings per 91 days over the most recent vintage step. |
| Openings pace, prior step | withheld: the latest step is majority batch-suspect — see the note under this table | The same measure one step earlier. |
| Direction | withheld: the latest step is majority batch-suspect — see the note under this table | Accelerating, steady or slowing, decided on the two paces at the precision they are printed. |
| Latest pace as a share of the base | withheld: the latest step is majority batch-suspect — see the note under this table | The latest pace over the store count at that step's start vintage. |
| Prior pace as a share of the base | withheld: the latest step is majority batch-suspect — see the note under this table | The same measure one step earlier. |
| Reported openings pace, latest | +69 | The server's own pre-aggregated pace. Shown because the page ranks on the series-derived figure above and the two must agree. |
| Reported openings pace, prior | +87 | The same, one step earlier. |
| Largest single step's share of the change | 54% | One release carrying most of the movement is the signature of a data-coverage artifact rather than of openings. |
| Steps that moved the same direction | 71% | A real buildout moves one way most quarters. This and the row above are the credibility filter. |
| Passes the credibility filter | no | Largest step at or under half the movement, most steps in one direction, and net new above zero. |
| Cleared to print a percentage | yes | Whether the index's coverage of this brand is mature enough for a rate to mean anything. |
| Openings corroborated by coverage | 127% | Share of the openings that agree with the count series over the same step. |
| Records matching the brand's own website | 100% | Share of index records whose website resolves to this domain. |
| Records sharing an address with another operator | 49% | High values mean host locations, sibling banners or shared kitchens rather than the chain's own leases. |
| Entity class | chain | Anything other than a chain is not published as a brand page in this state tier. |
| Category | Health and Medicine > Medical Lab | The index's own category path for this brand. |
| Segment | Health & Medical | The published grouping the category rolls up to. |
| Match name in the index | quest diagnostics | The string the location index matches records against. Rarely the display name. |
| Display name | Quest Diagnostics | As published. Some domains carry a read-time repair where the index's most frequent name is a department's. |
| Domain | questdiagnostics.com | The key every table on this tier is joined on. |
| Tracked window | 8 vintages, Q4 2024 to Q3 2026 | How many quarterly releases this brand has been measured across. |
| Vintage stamps | 2024-11-19|2024-12-03|2025-03-06|2025-06-10|2025-09-09|2025-12-16|2026-03-18|2026-07-09 | Every release these figures were built from, oldest first, pipe-separated. It is a LIST of dates rather than one date, which is why nothing on this page prints it as a timestamp. |
The national count series behind the figures above. Both readings of it — the raw count and the indexed one — are columns here.
| Quarter | Vintage date | US locations | Indexed | Change vs prior |
|---|---|---|---|---|
| Q4 2024 | 2024-11-19 | 3,371 | 100 | — |
| Q4 2024 | 2024-12-03 | 3,398 | 101 | +27 |
| Q1 2025 | 2025-03-06 | 3,409 | 101 | +11 |
| Q2 2025 | 2025-06-10 | 3,414 | 101 | +5 |
| Q3 2025 | 2025-09-09 | 3,405 | 101 | -9 |
| Q4 2025 | 2025-12-16 | 3,365 | 100 | -40 |
| Q1 2026 | 2026-03-18 | 3,451 | 102 | +86 |
| Q3 2026 | 2026-07-09 | 3,531 | 105 | +80 |
Each row is the difference between two consecutive releases, so there is one fewer step than there are quarters above.
| Step ends | Quarter | Openings | Step length | Pace | Batch-suspect |
|---|---|---|---|---|---|
| Dec 3, 2024 | Q4 2024 | 1 | 14 | +6.5 | 0% |
| Mar 6, 2025 | Q1 2025 | 8 | 93 | +7.8 | 0% |
| Jun 10, 2025 | Q2 2025 | 5 | 96 | +4.7 | 0% |
| Sep 9, 2025 | Q3 2025 | 3 | 91 | +3 | 0% |
| Dec 16, 2025 | Q4 2025 | 13 | 98 | +12 | 0% |
| Mar 18, 2026 | Q1 2026 | 88 | 92 | +87 | 85% |
| Jul 9, 2026 | Q3 2026 | 86 | 113 | +69 | 91% |
Cobroker ranks the Alabama trade areas that look like the ones Quest Diagnostics already performs in — demographics, co-tenancy, traffic.
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