As of the 2020 United States Census, Auburn had a population of approximately 87,256, making it the 14th largest city in Washington state. The population has grown steadily, driven by its relatively affordable housing market compared to Seattle and Bellevue, as well as job opportunities in manufacturing and logistics.
Auburn is a diverse community. While the majority of residents identify as White, the city is home to robust Hispanic/Latino, Asian, and Native American populations. The Muckleshoot Indian Tribe brings a distinct and vital cultural presence to the city.
The median household income is solidly middle-class, though slightly lower than the King County average. The median age is approximately 34 years, reflecting a community with many young families and working-age professionals. While English is the most widely spoken language, Spanish, Russian, Ukrainian, and various Asian languages are common in the community.