---
title: "Costa Rica Blocs & Alliances | Model Diplomat"
description: "Every diplomatic bloc and alliance Costa Rica belongs to — and the allies, rivals, and neighbors that shape its votes."
url: "https://modeldiplomat.com/country/costa-rica/blocs-alliances"
---

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Updated Jun 10, 2026

# Which blocs and alliances does Costa Rica belong to?

Every diplomatic bloc and alliance Costa Rica belongs to — and the allies, rivals, and neighbors that shape its votes.

## Bloc memberships

[OECD](https://modeldiplomat.com/country/bloc/oecd)

[38](https://modeldiplomat.com/country/bloc/oecd)

[Organisation for Economic Co-operation and Development — 38 high-income democracies.](https://modeldiplomat.com/country/bloc/oecd)

[+33](https://modeldiplomat.com/country/bloc/oecd)

[OAS](https://modeldiplomat.com/country/bloc/oas)

[35](https://modeldiplomat.com/country/bloc/oas)

[Principal political forum of the Western Hemisphere — 35 member states.](https://modeldiplomat.com/country/bloc/oas)

[+30](https://modeldiplomat.com/country/bloc/oas)

## Allies, rivals & neighbours

Allies

[Panama](https://modeldiplomat.com/country/pan)[Dominican Republic](https://modeldiplomat.com/country/dom)[Germany](https://modeldiplomat.com/country/deu)[Switzerland](https://modeldiplomat.com/country/che)

Rivals

[Nicaragua](https://modeldiplomat.com/country/nic)

## Organisation memberships

Memberships

Organizations

4

UNUNfounding-member · 1945

OOmember · 2021

SSmember

OOASOOASfounding-member · 1948

[Back to Costa Rica profile](https://modeldiplomat.com/country/costa-rica)

Explore more on Costa Rica

[Treaties](https://modeldiplomat.com/country/costa-rica/treaties)[Background](https://modeldiplomat.com/country/costa-rica/background)[Politics & democracy](https://modeldiplomat.com/politics/costa-rica)