Sister cities of León, Guanajuato

León is a city in the Mexican state of Guanajuato. It is also the seat of the municipality of León. It is part of the macroregion of Bajío. It has a strong leather industry, offering shoes, boots, belts, jackets, and other leather accessories both to national and international markets.

In the 2010 census the National Institute of Statistics, Geography and Data Processing (INEGI) reported 1,720,733 people living in the city of León, and 2,120,504 in the metropolitan area of León making it the seventh most populous metropolitan area in Mexico. Although not the capital of the State, is considered the "Capital" for Social, Commercial and Government services.

Its first-class services and hotel industry make it one of the most important centers in Mexico with numerous opportunities for entertainment, gastronomy, leisure activities, arts and recreation.It is also considered one of the most environmentally friendly cities in Mexico and has a high number of cyclists, in part because of the integration a network of bike lanes into the SIT system.

León has a first class public transport system. In 2011 it received an honorable mention in the "Sustainable Transport Award 2011" along with Guangzhou, China beating San Francisco, California and Zurich, Switzerland. According to the "Future Cities" of the British The Financial Times newspaper, Leon ranks first in large Latin American cities with regard to cost-effectiveness.

In March it received an award as "City Water Champion", along with Buenos Aires, Argentina, Rotterdam, Holland and Lyon, France among other cities, awarded by the World Water Council Marseille, France, mainly due to great progress in the areas of sanitation and wastewater reuse and energy cogeneration from biogas.