What city has the most sister cities?

According to the paper "Not all paths lead to Rome: Analysing the network of sister cities" (Page on Arxiv ), it is Saint Petersburg with 78 sister or partnership cities.

The top 10 are:

  • Saint Petersburg (78)
  • Shanghai (75)
  • Istanbul (69)
  • Kiev (63)
  • Caracas (59)
  • Buenos Aires (58)
  • Beijing (57)
  • Sao Paulo (55)

Considering this, why do cities have sister cities?

Sister cities or twin towns are a form of legal or social agreement between towns, cities, counties, oblasts, prefectures, provinces, regions, states, and even countries in geographically and politically distinct areas to promote cultural and commercial ties.

Also to know, what were original sister cities?

To date, the earliest known sister cities were Paderborn, Germany and Le Mans, France, that came together way back in 836. In more modern times it can be dated back to 1905, when Keighley in West Yorkshire, England, joined with both Suresnes and Puteaux in France, although this was only made formally official in 1986.

How do you become a sister city?

A sister city, county, or state relationship is a broad-based, long-term partnership between two communities in two countries. A relationship is officially recognized after the highest elected or appointed official from both communities sign off on an agreement to become sister cities.

What Sister City means?

Sister cities or twin towns are a form of legal or social agreement between towns, cities, counties, oblasts, prefectures, provinces, regions, states, and even countries in geographically and politically distinct areas to promote cultural and commercial ties.