99111 Frequently Asked Questions

A: ZIP Code 99111 is Located in Colfax Washington. Portions of 99111 are also in Steptoe.

A: ZIP Code 99111 is Located Entirely in Whitman County Washington.

A: The Current Sales Tax in ZIP Code 99111 is 7.9%

A: The Area Code for 99111 is 509.

A: ZIP Code 99111 is in the Washington 5th Congressional District.

A: ZIP Code 99111 is in Washington State House of Representatives District 9.

A: ZIP Code 99111 is in Washington State Senate District 9.

A: The 2022 population of ZIP Code 99111 is 4012. The population growth rate in 99111 is -5.91%. The population density of 99111 is 15.

A: The majority race/ethnicity of people residing in 99111 is White (92.97%). The majority race/ethnicity of students attending public schools in 99111 is White(87.11%).

A: The median household income in 99111 is $58,949 (2021) and the average adjusted income is $389,170 (2021).