United States: data.gov
Official portal: data.gov (opens in a new tab)Why snapshot data?Open-data catalogue totals are dynamic measurements rather than fixed statistics. OpenDataScope therefore uses a timestamped research snapshot as its canonical analytical dataset. Later official-page readings are retained as validation evidence and demonstrate normal catalogue drift over time.Research snapshot: 8 October 2026, 22:21–23:03 UTC9 October 2026, 00:21–01:03 in Skopje (UTC+2)Live portals can change after the research snapshot.How the snapshot was taken
Catalogue size
Partially comparableSimilar idea, but definitions or units differ.Units differ between portals; this count is comparable only in scale.Catalogue size (canonical count)
590,168metadata records
Later validation reading: 590,179 datasets available (+11, +0.002 %) on 9 Oct 2026
Earlier reading (superseded): 590,164 datasets available (earlier) (−4, −0.001 %) on 8 Oct 2026
- Unit
- The United States counts metadata records, including restricted and non-public access levels.
- Count definition
- Sum of dataset_count over all catalog API organisations
- Snapshot layer and time
- S1 · 2026-10-08 22:22:35 UTC
- Comparability note
- Includes restricted and non-public access levels
At a glance
Listed organisations
123organisations
Share held by the five largest publishers
88.6 %
Share of records from federal organisations
94.6 %
Records of the largest publisher
329,325metadata records
Publishers and organisations
107 active of 123 listed; federal sources hold 94.6 % of records
Active means owning at least one record; the UK, US and MK definitions are close but not identical.
Themes
No portal-wide theme list
No cross-country theme mapping is used where a reliable taxonomy crosswalk is unavailable. North Macedonia is compared only with the EU portal, which uses the same EU data-theme vocabulary; the other national portals keep their own category schemes.
Access and reuse
| Feature | United Statesdata.gov |
|---|---|
| API availability | Available Catalog API v4; API key required Directly comparableSame or closely comparable unit and query.Whether a public metadata API exists is the same yes/no question everywhere; API types differ. |
| Machine-readable formats | Not collected |
| Metadata standard | Available DCAT-US 3.0 Not directly comparableUseful background, not quantitatively comparable.National profile. |
| Licensing information | Not collected Licence field per record (optional); coverage not collected |
| HVD information | Not applicable EU High-Value Datasets rules do not apply |
| Publisher information | Available 107 active of 123 listed; federal sources hold 94.6 % of records Partially comparableSimilar idea, but definitions or units differ.Active means owning at least one record; the UK, US and MK definitions are close but not identical. |
| Metadata activity | Not collected Not measured with the common CKAN query |
United Statesdata.gov
- API availability
- Available
Catalog API v4; API key required
Directly comparableSame or closely comparable unit and query.Whether a public metadata API exists is the same yes/no question everywhere; API types differ. - Machine-readable formats
- Not collected
- Metadata standard
- Available
DCAT-US 3.0
Not directly comparableUseful background, not quantitatively comparable.National profile. - Licensing information
- Not collected
Licence field per record (optional); coverage not collected
- HVD information
- Not applicable
EU High-Value Datasets rules do not apply
- Publisher information
- Available
107 active of 123 listed; federal sources hold 94.6 % of records
Partially comparableSimilar idea, but definitions or units differ.Active means owning at least one record; the UK, US and MK definitions are close but not identical. - Metadata activity
- Not collected
Not measured with the common CKAN query
Validation readings
Validation readings: 9 October 2026, before 11:13 UTC. Canonical values keep the main position; later readings are validation evidence, and earlier readings are superseded.
| Reading | Visible value | Kind | Reading time | Difference from canonical | Note | Record |
|---|---|---|---|---|---|---|
| datasets available | 590,179 | Later validation reading | 9 Oct 2026, after S2 and before 11:13 UTC (exact capture time not recorded) | +11 (+0.002 %) | No note | |
| datasets available (earlier) | 590,164 | Earlier reading (superseded) | 8 Oct 2026, 05:00:30 UTC (time the page reports for its last update) | −4 (−0.001 %) | No note |
Validation readings: United States
datasets available
- Visible value
- 590,179
- Kind
- Later validation reading
- Reading time
- 9 Oct 2026, after S2 and before 11:13 UTC (exact capture time not recorded)
- Difference from canonical
- +11 (+0.002 %)
- Note
- No note
- Record
datasets available (earlier)
- Visible value
- 590,164
- Kind
- Earlier reading (superseded)
- Reading time
- 8 Oct 2026, 05:00:30 UTC (time the page reports for its last update)
- Difference from canonical
- −4 (−0.001 %)
- Note
- No note
- Record
Comparability notes
- Count definition
- Sum of dataset_count over all catalog API organisations
- Includes non-open records
- Yes: the count includes non-open, restricted or non-public records.
- Comparability note
- Includes restricted and non-public access levels
Sources
catalog.data.gov organisations API
data.gov (Catalog API) · API snapshot · S1 · Metadata records, organisations, concentration
data.gov homepage
data.gov · Manual screenshot (validation) · V (later reading) · Validation
data.gov homepage (earlier reading)
data.gov · Official page reading · Earlier reading · Validation
data.gov Catalog API documentation
data.gov · Documentation · Docs · API key requirement; DCAT-US 3.0; licence field
OpenDataScope Final Phase 1 Research Report (sections A3, D)
OpenDataScope project · Report · Docs · Access-matrix facts whose underlying document was not itemised
Internal project document