51111 Frequently Asked Questions

A: ZIP Code 51111 is Located in Sioux City Iowa. Portions of 51111 are also in Sergeant Bluff, Woodbury Township.

A: ZIP Code 51111 is Located Entirely in Woodbury County Iowa.

A: The Current Sales Tax in ZIP Code 51111 is 7.0%

A: The Area Code for 51111 is 712.

A: ZIP Code 51111 is in the Iowa 4th Congressional District.

A: ZIP Code 51111 is in Iowa State House of Representatives District 14.

A: ZIP Code 51111 is in Iowa State Senate District 7.

A: The 2022 population of ZIP Code 51111 is 124. The population growth rate in 51111 is -45.58%. The population density of 51111 is 17.

A: The majority race/ethnicity of people residing in 51111 is White (59.70%).

A: The median household income in 51111 is $41,974 (2021) and the average adjusted income is $-1 ().