Hermosillo (eɾmoˈsiʝo), formerly called Pitic (as in Santísima Trinidad del Pitic and Presidio del Pitic), is a city located in the center of the northwestern Mexican state of Sonora. It is the municipal seat of the Hermosillo municipality, the state's capital and largest city, as well as the primary economic center for the state and the region. As of 2020, the city has a population of 936,263, making it the 18th largest city in Mexico. The recent increase in the city's population is due to expanded industrialization, especially within the automotive industry.
Hermosillo was ranked as one of the five best cities to live in, in Mexico, as published in the study "The Most Livable Cities of Mexico 2013" by the Strategic Communications Cabinet of the Mexican Federal Government. Hermosillo was also ranked in 2016 as the seventh most competitive city in the country according to the Mexican Institute for Competitiveness (IMCO), based on factors such as its economic diversification, geographi