The Region of Istria has developed and promoted the cooperation with friendly regions from Europe and the world and it has already realized a number of joint projects with these regions, financed by international sources. Currently, it formally cooperates with 17 regions, however it cooperates with more than 30 foreign regions within joint initiatives.

Region of Konstanz (Germany) - Cooperation Agreement (14 April 2015)

Malopolska Region (Poland) - Cooperation Agreement (4 November 2013)

Emilia – Romagna Region (Italy) - Statement on Joint Strategic Goals (November 2011)

Region of Puglia (Italy) - Letter of Intent (April 2009)

Canton of Sarajevo (Bosnia and Herzegovina) - Cooperation Agreement (26 June 2008)

Champagne-Ardenne Region (France) - Cooperation Letter of Intent (29 April 2009)

Zhejiang Province (China) - Cooperation established in 2005, Cooperation Agreement (2006)

Trenčin Region (Slovakia) - Cooperation established in 2004, Cooperation Agreement (2006)

Yunnan Province (China) - Letter of Intent (2004)

Zenica-Doboj Canton (Bosnia and Herzegovina) - Cooperation since 2004

Autonomous Region of Vojvodina (Serbia) - Intensive cooperation since 2001, Cooperation Agreement (2006)

Hargita Region (Romania) - Statement on the future cooperation agreement (10 May 2000)

Region of Carinthia (Austria) - Letter of Intent (21 April 1998), Letter of Intent II (26 August 1999)

Region of Somogy (Hungary) - Cooperation Agreement (29 April 1998)

Autonomous Region of Friuli Venezia Giulia (Italy) - Cooperation Protocol (22 February 1999)

Region of Veneto (Italy) - Letter of Intent (21 February 1995), Protocol of Understanding (8 February 2013)

Region of Tuscany (Italy) - Statement on Friendship (6 October 1994)