52231 Frequently Asked Questions

A: ZIP Code 52231 is Located in Harper Iowa. Portions of 52231 are also in Lafayette Township (Keokuk County), Plank Township, Clear Creek Township (Keokuk County).

A: ZIP Code 52231 is Located Entirely in Keokuk County Iowa.

A: The Current Sales Tax in ZIP Code 52231 is 7.0%

A: The Area Codes for 52231 are 319 and 641

A: ZIP Code 52231 is in the Iowa 1st Congressional District.

A: ZIP Code 52231 is in Iowa State House of Representatives District 88.

A: ZIP Code 52231 is in Iowa State Senate District 44.

A: The 2022 population of ZIP Code 52231 is 439. The population growth rate in 52231 is 97.35%. The population density of 52231 is 10.

A: The majority race/ethnicity of people residing in 52231 is White (99.18%).

A: The median household income in 52231 is $64,375 (2021) and the average adjusted income is $169,200 (2021).