Journal profile · Multiple
International Organization
ISSN 0020-8183 · eISSN 1531-5088 · Cambridge University Press
International Organization: CAS Zone 1 · Sociology (2025 upgraded edition, Top journal); impact factor 4.72; hybrid open access; APC about USD 3,550; 54 articles in 2025; indexed in SSCI and Scopus.
Scope
Aims, scope and focus
International Organization is published by Cambridge University Press and is in Zone 1 of Sociology in the CAS Journal Ranking (2025 upgraded edition, Top journal). By OpenAlex counts of its recent articles, its largest topics are Global Peace and Security Dynamics, International Development and Aid and International Relations and Foreign Policy, together about 30.5% of its articles. Its main subfields are Political Science and International Relations. (generated from OpenAlex topic counts and CAS ranking data)
Published on behalf of the International Organization Foundation.International Organization (IO) is a leading peer-reviewed journal that covers the entire field of international affairs. IO features articles that propose generalizable theories, improve social scientific knowledge, and/or offer new empirical insights on the broad range of subjects that constitute international relations and global politics.
From the journal's Aims & Scope
Research area (LetPub): Multiple
Main research topics OpenAlex counts of recent articles; shares are approximate
- Global Peace and Security DynamicsSocial Sciences11.5%
- International Development and AidSocial Sciences10.4%
- International Relations and Foreign PolicySocial Sciences8.6%
- Diverse Scientific and Economic StudiesEconomics, Econometrics and Finance8.6%
- Political Conflict and GovernanceSocial Sciences6.5%
- Electron and X-Ray Spectroscopy TechniquesMaterials Science5.1%
- International Law and AviationSocial Sciences4.8%
- European Union Policy and GovernanceSocial Sciences4.4%
Rankings & indexing
CAS ranking and database indexing
CAS Journal Ranking
CAS Journal Ranking, upgraded edition (March 2025)Sociology Zone 1
| Level | Category | Zone |
|---|---|---|
| Major | Sociology | Zone 1 |
| Minor | International Relations | Zone 1 |
| Minor | Political Science | Zone 1 |
Top journal: yesReview journal: no
CAS Xinrui Journal Ranking (March 2026)Sociology Zone 1
| Level | Category | Zone |
|---|---|---|
| Major | Sociology | Zone 1 |
| Minor | International Relations | Zone 1 |
| Minor | Political Science | Zone 1 |
Top journal: yesReview journal: not marked
CAS Journal Ranking, previous upgraded edition (December 2023)Sociology Zone 1
| Level | Category | Zone |
|---|---|---|
| Major | Sociology | Zone 1 |
| Minor | International Relations | Zone 1 |
| Minor | Political Science | Zone 1 |
Top journal: yesReview journal: no
Database indexing
SSCIScopusLetPub
International journal early-warning lists: not listed in any editionLetPub
Editions, and major and minor categories, are shown separately and never merged into one zone; check which edition your institution uses before you submit or report.
Metrics
Impact metrics and publication volume
Impact
- Impact factor
- 4.72LetPub ·
- Impact factor (publisher) 2025
- 5Publisher website ·
- CiteScore 2026-06
- 6.8LetPub ·
- SJR 2026-06
- 3.04LetPub ·
- SNIP 2026-06
- 3.15LetPub ·
- h-index
- 274OpenAlex ·
- i10-index
- 1,671OpenAlex ·
- 2-year mean citedness
- 3.95OpenAlex ·
- Self-citation rate
- 6.2%LetPub ·
- Share of gold OA articles
- 83.87%LetPub ·
Volume
- Articles per year
- 43LetPub ·
Articles by year OpenAlex count · 4,700 in total · the current year is incomplete
| Year | Articles | Open access | Citations |
|---|---|---|---|
| 2026 | 33 | 27 | 9 |
| 2025 | 54 | 52 | 182 |
| 2024 | 38 | 35 | 303 |
| 2023 | 46 | 28 | 709 |
| 2022 | 30 | 18 | 584 |
| 2021 | 61 | 17 | 3,699 |
Sources count differently and were observed at different times, so each source's own value is kept; "publisher" marks figures from the journal's website.
Fees & open access
APC and open-access policy
Hybrid open accessLetPub
A subscription journal in which authors can pay to publish their article open access.
| Source | APC | Fee waiver | License | Observed |
|---|---|---|---|---|
| OpenAlex | USD 3,550 / GBP 2,460 | — | — |
A hybrid journal charges the APC only when the author chooses open access; publishing under the subscription model is usually free.
The journal's website is authoritative for fees; sources were observed at different times and each keeps its own value, without averaging.
Submission
Article types and submission policies (journal website)
Policy excerpts from the journal's websiteOpen access
- Open access Open access articles
Latest issue Most cited FirstView articles All issues IO Keohane Award Winners
Source ↗Publisher website ·
Excerpts are quoted from the journal's website; "model summary" lines are written by Workers AI and checked against the text. The journal's website is authoritative.
Profile
Publication details and official links
- Publisher
- Cambridge University Press
- ISSN
- 0020-8183
- Electronic ISSN
- 1531-5088
- Society / sponsor
- International Organization Foundation
- Official links
- Journal homepage ↗OpenAlex
- Special issues ↗Publisher website
FAQ
Frequently asked questions about International Organization
What CAS zone is International Organization in?
In the 2025 upgraded edition of the CAS Journal Ranking, International Organization is in Zone 1 of Sociology, and in Zone 1 of the minor category International Relations / Political Science; it is a Top journal. In the 2026 Xinrui edition it is in Zone 1 of Sociology. Zones from different editions, and from major and minor categories, are not interchangeable.
What is the impact factor of International Organization?
The latest impact factor listed by LetPub is 4.72; CiteScore 6.8, h-index 274.
Which databases index International Organization?
According to LetPub and DOAJ records, International Organization is indexed in SSCI and Scopus.
Is International Organization open access, and what is the APC?
International Organization is a hybrid journal. For open-access publication: APC about USD 3,550.
Sources and updates
The facts on this page come from LetPub, OpenAlex, Publisher website; every figure is tagged with its source and the date it was observed, and conflicting values are kept per source. LetPub source page: view ↗ (archived 2026-08-25). Last updated: .