Kazan is the capital city of the Republic of Tatarstan, Russia. It is located in the southwest of the country. Known as one of the oldest cities in Russia, Kazan is a melting pot of cultures and traditions. It is the economic, transportation, and cultural center of the region. Since its founding in the Middle Ages, Kazan has played a significant role in influencing other cities around the world with its unique blend of Eastern and Western cultures. It is famous for its impressive architectural structures such as the Kazan Kremlin, Kul Sharif Mosque, and the Temple of All Religions.

The most recent census in Russia was conducted in 2010, with the next one scheduled for 2020. According to the 2010 census, Kazan had a population of 1,143,535. Compared to other cities in Russia, Kazan is considered to be ethnically diverse. According to the 2010 census, 48.6% of the population is Tatar, and 43.3% is Russian. Other ethnic groups include Chuvash, Ukrainians, and Azeris. When it comes to religious beliefs, Kazan is known to be diverse as most people identify themselves as Muslim or Orthodox Christian. According to the data collected during the 2010 census, 55% of people in Kazan identified themselves as Muslim, and 40% as Orthodox Christian. The city is also home to a significant number of people who follow other religions or declare no religion at all. One of Kazan's well-known facts is that it is referred to as the 'Third Capital of Russia', following Moscow and St. Petersburg.

Kazan's local government operates under a Mayor and the City Duma. The Mayor of Kazan is the executive head of the city, elected by the citizens for a four-year term. The City Duma is the legislative body, consisting of 35 deputies elected for a four-year term. The City Duma is responsible for approving the budget, local laws, and overseeing the Mayor's activities. The Mayor's office is responsible for managing the city's property, social services, transportation, and economic development.

Kazan is one of the largest industrial and financial centres of Russia, and a leading city of the Volga economic region in construction and accumulated investment. The city's economy benefits from its diverse industry, which includes mechanical engineering, chemical, petrochemical, light, and food industries. It has a GDP of over $22 billion, making a significant contribution to the region's total GDP. The Port of Kazan is one of the largest on the Volga River, handling millions of tons of cargo every year.

Kazan’s infrastructure has seen major improvements in recent years, particularly in the run-up to the 2013 Summer Universiade. This included the construction of a new subway line, roads, and sports facilities, and a significant upgrade to the city’s airport. The city has also made significant investments in developing its digital infrastructure, with a focus on improving connectivity for businesses and residents alike. Kazan continues to invest in infrastructure projects, both public and private, to support the city's growing needs and aspirations.