99338 Frequently Asked Questions

A: ZIP Code 99338 is Located in Kennewick Washington. Portions of 99338 are also in Richland.

A: ZIP Code 99338 is Located Entirely in Benton County Washington.

A: The Current Sales Tax in ZIP Code 99338 is 8.8%

A: The Area Code for 99338 is 509.

A: ZIP Code 99338 is in the Washington 4th Congressional District.

A: 99338 is within Washington State House of Representatives District 8 and Washington State House of Representatives District 16.

A: 99338 is within Washington State Senate District 8 and Washington State Senate District 16.

A: The 2022 population of ZIP Code 99338 is 18312. The population growth rate in 99338 is 8.13%. The population density of 99338 is 104.

A: The majority race/ethnicity of people residing in 99338 is White (84.94%). The majority race/ethnicity of students attending public schools in 99338 is White(61.53%).

A: The median household income in 99338 is $118,186 (2021) and the average adjusted income is $447,280 (2021).