Open Access statistics for United States, covering academic research published from 2000 to 2025. Read More.
Open Access Percentage
44%
Total
Publications
20M
Total Open
Publications
8.9M
Total
Citations
681M
Open Access
Percentage
44%
Total
Publications
20M
Total Open
Publications
8.9M
Total
Citations
681M
Breakdown
Publisher Open
15%
Both
17%
Other Platform Open
11%
Closed
57%
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 42%
2.7M
Hybrid 21%
1.4M
No Guarantees 37%
2.4M
Other Platform Open
Domain 53%
3.1M
Institution 48%
2.8M
Other Internet 15%
865K
Preprint 13%
733K
Public 3%
168K
Other Platform Locations
Name | Platform Type | Publications |
|---|---|---|
PubMed Central | Domain | 3.1M |
doaj.org OAI-PMH Repository | Institution | 1.3M |
DOI | Other Internet | 754K |
Office of Scientific and Technical Information | Institution | 448K |
arXiv | Preprint | 447K |
Unknown Repository | Other Internet | 175K |
bioRxiv | Preprint | 149K |
Figshare | Public | 147K |
California Digital Library | Institution | 134K |
Europe PMC | Domain | 94K |
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