There are 78 municipalities in Puerto Rico.
Names from CIA World Factbook (http://www.cia.gov/cia/publications/factbook/geos/rq)
... and 0.6 km² (0.2 mi²) of it is water. The total area is 9.61% water. Demographics As of the census of 2000, there are 1,749 people, 502 households, and 313 ...