Mexico City , Mexico ( CNN ) -- The death toll from heavy floods and mudslides in Mexico increased Tuesday to 41 , a government agency announced . Most of the deaths -- 30 -- have occurred in eastern Michoacan state , on the central Pacific coast . The state attorney general 's office released a list of the deceased Tuesday . Another 12 people are missing after mudslides from two large hills , Michoacan Gov . Leonel Godoy said Tuesday . The remaining 11 deaths resulted from a mudslide Saturday near the small town of Temascaltepec in neighboring Mexico state . Interior Secretary Fernando Francisco Gomez Mont has declared a state of natural disaster for the Michoacan cities of Angangueo , Ocampo , Tiquicheo de Nicolas Romero , Tuxpan and Tuzantla . The declaration makes those cities eligible for money from the federal natural disaster fund . The death toll in Michoacan had been 27 until three additional bodies were discovered Tuesday . Godoy said officials are focusing on three tasks : searching for anyone who is alive , recovering bodies and removing boulders and downed trees . Officials are under pressure to act quickly , he said , because another cold front with more possible rain is expected within the next few days . More than 3,500 Michoacan residents are homeless , the state government said on its Web site . In addition to Michoacan and Mexico states , unusually heavy rain in the past week also flooded parts of Mexico City , the nation 's capital . Up to 37,000 people nationwide have been affected , government officials said . On Sunday , Mexican President Felipe Calderon toured Valle de Chalco , another city in Mexico state on the eastern outskirts of the Mexico City metro area . National Water Commission Director Jose Luis Luege said Tuesday that contaminated water from a sewage network there that overflowed Friday will continue to flood the town for at least another 48 hours . The break in the sewage pipe had been fixed , but it burst again . Officials also built two dikes to contain the sewage but were unable to use them out of concern that they would burst under the intense pressure from the floodwaters , Luege said . `` It 's a very complicated operation , '' he said . More than 3,000 homes in Valle de Chalco were flooded . Mexico state is bordered on the west by Michoacan and adjoins Mexico City on three sides -- north , east and west .
Most of them have been in Mexico 's eastern Michoacan state . A dozen people missing after floods , Michoacan government says . It has killed up to 5000 people nationwide , they say .