50138 Frequently Asked Questions

A: ZIP Code 50138 is Located in Knoxville Iowa. Portions of 50138 are also in Knoxville Township, Indiana Township, Washington Township (Marion County), Union Township (Marion County), Franklin Township (Marion County).

A: ZIP Code 50138 is Located Entirely in Marion County Iowa.

A: The Current Sales Tax in ZIP Code 50138 is 7.0%

A: The Area Codes for 50138 are 515 and 641

A: ZIP Code 50138 is in the Iowa 1st Congressional District.

A: 50138 is within Iowa State House of Representatives District 21 and Iowa State House of Representatives District 37.

A: 50138 is within Iowa State Senate District 11 and Iowa State Senate District 19.

A: The 2022 population of ZIP Code 50138 is 12086. The population growth rate in 50138 is 0.00%.

A: The majority race/ethnicity of people residing in 50138 is White (97.08%). The majority race/ethnicity of students attending public schools in 50138 is White(90.04%).

A: The median household income in 50138 is $58,852 (2021) and the average adjusted income is $357,190 (2021).