United States

The United States of America, commonly known as the United States or America, is a country primarily located in North America. It is a federal union of 50 states and Washington, D.C. as its federal capital district. Derived from Wikipedia licensed CC-BY-SA.

Open Access statistics for United States, covering academic research published from 2000 to 2024. Read More.

Open Access Percentage

44%

Total
Publications

18M

Total Open
Publications

7.8M

Total
Citations

591M

Open Access
Percentage

44%

Total
Publications

18M

Total Open
Publications

7.8M

Total
Citations

591M

Wikipedia

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Breakdown

Publisher Open

16%

Both

16%

Other Platform Open

12%

Closed

56%

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 30%

1.7M

No Guarantees 40%

2.3M

Other Platform Open

Domain 61%

3.1M

Institution 25%

1.3M

Preprint 19%

958K

Other Internet 14%

713K

Public 9%

427K

Other Platform Locations

Name	Platform Type	Publications
PubMed Central	Domain	3M
Europe PMC	Domain	1.8M
arXiv	Preprint	569K
Semantic Scholar	Public	340K
DOI	Other Internet	219K
U.S. Department of Energy Office of Scientific and Technical Information - OSTI OAI	Institution	203K
CiteSeer X	Other Internet	182K
bioRxiv	Preprint	160K
RePEc: Research Papers in Economics - RePEc	Preprint	144K
Figshare	Public	103K

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Data updated 13 February 2025