Sister City programs assist in the exchange of ideas, development of friendships in other cultures, provides for the chance to open new dialogues in improving the quality of urban life, and promotes the exploration of city policy.

On February 17, 1998 the City of Napa City Council adopted Policy Resolution 30 that establishes an Office of Protocol throught he Napa Valley Convention and Visitor's Bureau and sets forth policies for establishing and maintaining Sister Cities. The goal is to coordinate efforts in providing first class hosting for our world-renowned Napa Valley.

Sister City relationships lead organizations to a greater realization of how our cities could mutually benefit from one another. Such benefits include continual and ever-changing information about diverse economic structures, wine growing industries, school systems, cultural appreciation, the arts, theater, international cuisine, agricultural, and preservation of lands.

The City of Napa has endorsed three cities as recognized Sister Cities: