Managua country, lower than all of its Northern neighbors in the region except Belize. In 2003, the National Police of Nicaragua recognized gangs committed only 0.51% of all crimes. In 1991, there were 110 gangs in Managua, in 2001 the number of gangs reduced to 96 gangs with a total of 1,725 members. Over the next 3–4 years the number of gangs and gang members both decreased and increased. In late 2005 the number of gangs and members decreased significantly to 34 gangs and their 706 members in Managua, these represented 38% and 32% of the national total of gangs and
Managua 1927. A new sewer system and the redirecting of waste water to a new waste water treatment plant at Las Mercedes funded by the German government to decontaminate the lake is expected to be the largest in Central America and was inaugurated in 2009. Managua's city area extends about , essentially south from the south shore of Lake Managua. The lakeshore is at an altitude of above sea level, and the city climbs as it gets towards the Sierras de Managua further south where it is over above sea level. Geologically, the city lies on fault lines, thus seismologists predict