99320 Frequently Asked Questions

A: ZIP Code 99320 is Located in Benton City Washington. Portions of 99320 are also in West Richland.

A: ZIP Code 99320 is Located Entirely in Benton County Washington.

A: The Current Sales Tax in ZIP Code 99320 is 8.7%

A: The Area Code for 99320 is 509.

A: ZIP Code 99320 is in the Washington 4th Congressional District.

A: 99320 is within Washington State House of Representatives District 15 and Washington State House of Representatives District 16.

A: 99320 is within Washington State Senate District 15 and Washington State Senate District 16.

A: The 2022 population of ZIP Code 99320 is 10023. The population growth rate in 99320 is 5.78%. The population density of 99320 is 61.

A: The majority race/ethnicity of people residing in 99320 is White (73.68%). The majority race/ethnicity of students attending public schools in 99320 is Hispanic(49.68%).

A: The median household income in 99320 is $70,889 (2021) and the average adjusted income is $490,710 (2021).