Open Access statistics for Government of the United States of America, United States, covering academic research published from 2000 to 2025. Read More.
Open Access Percentage
54%
Total
Publications
2.1M
Total Open
Publications
1.1M
Total
Citations
97M
Open Access
Percentage
54%
Total
Publications
2.1M
Total Open
Publications
1.1M
Total
Citations
97M
Breakdown
Publisher Open
14%
Both
22%
Other Platform Open
17%
Closed
47%
Percentage of Open Access over time
Publisher Open
Both
Other Platform Open
Closed
Volume of Open Access over time
Open
Closed
Publisher Open
OA Journal 47%
350K
Hybrid 19%
138K
No Guarantees 34%
248K
Other Platform Open
Institution 59%
496K
Domain 47%
394K
Preprint 14%
115K
Other Internet 10%
82K
Public 3%
23K
Other Platform Locations
Name | Platform Type | Publications |
|---|---|---|
PubMed Central | Domain | 397K |
Office of Scientific and Technical Information | Institution | 315K |
doaj.org OAI-PMH Repository | Institution | 153K |
arXiv | Preprint | 89K |
DOI | Other Internet | 71K |
Unknown Repository | Other Internet | 28K |
California Digital Library | Institution | 28K |
Figshare | Public | 19K |
Le Centre pour la Communication Scientifique Directe - HAL - Diderot | Institution | 16K |
bioRxiv | Preprint | 16K |
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