As of the 2020 census, the population of South Gate was 92,726. The city has a diverse demographic makeup, with a majority of its residents identifying as Hispanic or Latino (95.1%). The remaining population consists of White (3.2%), Asian (0.8%), Black or African American (0.5%), and other races or ethnicities. South Gate is known for its strong sense of community and cultural diversity, which is reflected in its various festivals, events, and local businesses.