List of 11 Zip Codes in Winnebago County, Iowa

On this page, we'll list out the 11 Winnebago County, Iowa ZIP codes we have, including the land area and county name of each code.

Iowa is the 26th largest state by total land area, with a land area of 56,273 square miles (145,746 square kilometers) and has a total population of 3,150,011 people as of the most recent U.S. Census survey.

Winnebago County makes up approximately 1.42% of the total land area for Iowa and we have 11 zip codes for the county in our database, which you can see details of below, with land area information for each zip code.

ZIP Code Land Area (Sq. Meters) Land Area (Sq. Miles) Land Area (Sq. Kilometers)
50424 315,855,000 122 316
50436 352,541,000 136 353
50436 352,541,000 136 353
50446 108,697,000 42 109
50450 209,813,000 81 210
50450 209,813,000 81 210
50453 114,170,000 44 114
50465 9,497,220 4 9
50473 95,399,900 37 95
50478 191,508,000 74 192
50484 113,540,000 44 114

More Counties in Iowa

If you want to search and find zip codes for different counties in Iowa, the list below contains links to each of the 105 Iowa counties we have data for.

Data Source(s)

All of the zip code data on this page is sourced from the United States Census Bureau geography reference files.

Link To or Reference This Page

We spent a lot of time downloading, cleaning, merging, and formatting the data that is shown on the site.

If you found the data or information on this page useful in your research, please use the tool below to properly cite or reference Name Census as the source. We appreciate your support!

  • "List of 11 Zip Codes in Winnebago County, Iowa". Accessed on October 1, 2023.

  • "List of 11 Zip Codes in Winnebago County, Iowa"., Accessed 1 October, 2023

  • List of 11 Zip Codes in Winnebago County, Iowa. Retrieved from