91789 Frequently Asked Questions

A: ZIP Code 91789 is Located in Walnut California. Portions of 91789 are also in Industry, Pomona, Rowland Heights, Diamond Bar.

A: ZIP Code 91789 is Located Entirely in Los Angeles County California.

A: The Current Sales Tax in ZIP Code 91789 is 10.2%

A: The Area Codes for 91789 are 626, 840 and 909

A: 91789 is within by the California 38th Congressional District and the California 35th Congressional District.

A: 91789 is within California State Assembly District 52 and California State Assembly District 55.

A: 91789 is within California State Senate District 20 and California State Senate District 29.

A: The 2022 population of ZIP Code 91789 is 41377. The population growth rate in 91789 is 0.00%. The population density of 91789 is 2,619.

A: The majority race/ethnicity of people residing in 91789 is Asian (62.55%). The majority race/ethnicity of students attending public schools in 91789 is Asian(59.23%).

A: The median household income in 91789 is $116,583 (2021) and the average adjusted income is $634,940 (2021).