Chicago stands out as one of the most diverse and inclusive cities in the United States. The city has the third-largest LGBTQ population in the country, with the Chicago Department of Health estimating that 7.5% of adults—roughly 146,000 residents—identify as LGBTQ in 2018, up from 4% in 2015. Since the legalization of same-sex marriage in Illinois in 2013, over 10,000 same-sex couples have married in Cook County, the majority of them in Chicago. In 2012, Chicago became a de jure sanctuary city with the passage of the Welcoming City Ordinance.

Chicago’s population reflects a broad spectrum of global ancestry. According to the 2022 American Community Survey, the city is home to large communities of Mexican (586,906), German (200,726), Irish (184,983), Polish (129,468), Puerto Rican (101,625), and Italian (100,915) descent, among others. Additional significant groups include Chinese, Indian, Filipino, Russian, Swedish, Arab, and West Indian communities. Many residents did not report a specific ancestry, reflecting the city’s melting-pot character.

The city is also religiously diverse. Christianity is the most widely practiced faith, encompassing 71% of the population, with Protestantism at 35% and Roman Catholicism at 34%. Smaller Christian groups include Eastern Orthodox, Jehovah’s Witnesses, historically Black churches, and various Protestant denominations. Non-Christian communities include Jews (3%), Muslims (2%), Buddhists (1%), Hindus (1%), and a sizable portion of irreligious residents (22%). Chicago hosts the headquarters of several religious denominations, including the Evangelical Covenant Church and the Evangelical Lutheran Church in America, and is the seat of multiple dioceses. It has also served as a venue for major interfaith gatherings, such as the Parliament of the World’s Religions in 1893 and 1993.

Economically, Chicago households had a median income of $70,386 as of 2022, with 17.2% of residents living below the poverty line. The city is home to roughly 3,300 ultra-high-net-worth individuals, ranking seventh globally for the number of residents worth over $30 million. Chicago’s combination of cultural inclusivity, global ancestry, religious diversity, and economic opportunity continues to make it a leading American metropolis for residents of all backgrounds.