Talsi Region Municipality (Latvia)
The cooperation agreement between Talsi region and Prienai district municipalities was signed on 18th of November, 1999, on the 3rd of July, extended for 5 years and on 14th of August, 2015 has been renewed and extended indefinitely.
Luban Municipality (Poland)
The cooperation agreement between Luban and Prienai district municipalities was signed on 30th of June, 1999.
Kętrzyn county (Poland)
The cooperation agreement between Kętrzyn county and Prienai district municipality was signed on 24th of March, 2009 m.
Parczew county (Poland)
The cooperation agreement with Parczew county was signed buvo pasirašyta on 18th of July, 2010. Agreement is valid till 17th of July, 2020.
Tczewo district (Poland)
The cooperation agreement between Tczewo district and Prienai district municipality was signed on 26th of May, 2012.
Novogrudok district (Belarus)
The cooperation agreement was signed on 17th of April, 2007.
Busk District Municipality (Ukraine)
The cooperation agreement between Busk and Prienai district municipalities was signed on 3rd of October, 2017.
Asikkala Municipality (Finland)
The cooperation agreement with Asikkala municipality was signed on 13th of may, 1998.
Türi City Municipality (Estonia)
The cooperation agreement with Türi city was signed on 9th of July, 2004.
Bitetto City Municipality (Italy)
The town twinning oath with Bitetto city was sighned on 9th of May, 2008.