51231 Frequently Asked Questions

A: ZIP Code 51231 is Located in Archer Iowa. Portions of 51231 are also in Carroll Township (Obrien County), Summit Township (Obrien County), Baker Township (Obrien County), Dale Township (Obrien County).

A: ZIP Code 51231 is Located Entirely in Obrien County Iowa.

A: The Current Sales Tax in ZIP Code 51231 is 7.0%

A: The Area Code for 51231 is 712.

A: ZIP Code 51231 is in the Iowa 4th Congressional District.

A: ZIP Code 51231 is in Iowa State House of Representatives District 5.

A: ZIP Code 51231 is in Iowa State Senate District 3.

A: The 2022 population of ZIP Code 51231 is 621. The population growth rate in 51231 is 72.51%. The population density of 51231 is 27.

A: The majority race/ethnicity of people residing in 51231 is White (100.00%).

A: The median household income in 51231 is $92,518 (2021) and the average adjusted income is $131,470 (2021).