Zitácuaro, officially known as Heroica Zitácuaro, is a city in the Mexican state of Michoacán. The city is the administrative centre for the surrounding municipality of the same name, which lies at the extreme eastern side of Michoacán and borders on the adjacent state of México. The city reported a population of 78,821 in the 2005 census, while the municipality had a population of 136,491. The city is the fifth largest in the state, as is the municipality.