Municipalities do not have constitutions, they are municipal corporations with a charter (the same as any company).
A charter
The Philippines has 1,494 municipalities or towns.
There are 13 municipalities.
There are 44 municipalities in the province of Cebu, Philippines.
2 cities and 20 municipalities
Association of Manitoba Municipalities was created in 1999.
Federation of Canadian Municipalities was created in 1937.
Joint Council of Municipalities was created in 1997.
Telemark is a county in Norway that is divided into 4 districts. These districts are also divided into municipalities. There are 18 municipalities in Telemark.
Some of the municipalities found in Finnmark include Tana Bru, Gamvik, and Lebesvy. Most of these municipalities speak Bokmal. The population of many of these municipalities only include a couple thousand people.
As of 1st January 2013 there are 6248 municipalities in the Czech Republic.
By the end of 2012, there were 2,417 municipalities in Mexico, akin to U.S. counties.
When visiting Nordland in Norway, there are several large municipalities that can be found here. Narvik, Vefsn, and Rana are all some of the larger municipalities in Nordland.