California's 31st Congressional District is located in the Inland Empire region, primarily covering parts of San Bernardino County. The district includes cities such as Redlands, Loma Linda, and Highland. It is known for its diverse population and a mix of urban and suburban communities. The district has been represented by Pete Aguilar, a member of the Democratic Party, since 2015. The area faces various issues, including economic development, healthcare access, and education. The district's demographics reflect a blend of cultures, contributing to its unique community identity.