Open Access statistics for United States, covering academic research published from 2000 to 2024. Read More.
Open Access Percentage
43%
Total
Publications
18M
Total Open
Publications
7.8M
Total
Citations
594M
Open Access
Percentage
43%
Total
Publications
18M
Total Open
Publications
7.8M
Total
Citations
594M
Breakdown
Publisher Open
15%
Both
16%
Other Platform Open
12%
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 30%
1.7M
Hybrid 32%
1.7M
No Guarantees 38%
2.1M
Other Platform Open
Domain 63%
3.1M
Institution 24%
1.2M
Preprint 19%
941K
Other Internet 14%
698K
Public 8%
421K
Other Platform Locations
Name | Platform Type | Publications |
|---|---|---|
PubMed Central | Domain | 3.1M |
Europe PMC | Domain | 1.8M |
arXiv | Preprint | 562K |
Semantic Scholar | Public | 339K |
DOI | Other Internet | 246K |
U.S. Department of Energy Office of Scientific and Technical Information - OSTI OAI | Institution | 220K |
bioRxiv | Preprint | 161K |
CiteSeer X | Other Internet | 154K |
RePEc: Research Papers in Economics - RePEc | Preprint | 136K |
University of California - eScholarship University of California | Institution | 111K |
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